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1	Biology	ABS-5
WATER QUALITY ANALYSIS BASED ON TOTAL COLIFORM BACTERIA IN AMBON BAY Zen Ladestam Siallagan Institut Teknologi Bandung- Badan Riset dan Innovasi Nasional Abstract Ambon Bay is divided into two main parts, namely the Inner Ambon Bay (TAD) and the Outer Ambon Bay (TAL). The quality of Ambon Bay waters continues to decline along with increased activity around the bay. This study aims to determine the health quality of the waters around Ambon Bay and Ambon Dalam Bay (TAD) from a microbiological aspect. Determination of the number of coliform bacteria in the tested seawater samples was carried out using the Most Probable Number (MPN) method. In addition to taking seawater samples, physical and chemical parameters were measured, such as salinity, temperature, turbidity, dissolved oxygen (DO), pH, phosphate, and nitrate content at surface depth limits (0-1 meter). The study results found that station 11 was the location of the observation station with the highest total coliform, while stations 6,16,17 were areas with low total coliform values. Coliform bacteria detected the condition of the water quality of Ambon Bay as a whole. One observation station location that did not meet the requirements was found out of eighteen observation stations, namely station 11, following the Decree of the Minister of Environment No. 51 of 2004 (KepMen LH 51/2004) concerning Seawater Quality Standards for Marine Biota, Marine Tourism, and Ports. The high pollution around the bay, which comes from domestic, industrial, and market waste, is the main trigger for the high coliform bacteria in that location. Continuous monitoring is needed representing a season or per certain period to obtain more comprehensive data and mitigation measures to ensure the health of Ambon Bay in the future. Keywords: Please Just Try to Submit This Sample Abstract Share Link | Plain Format | Corresponding Author (Zen Ladestam Siallagan)

2	Biology	ABS-8
Bioprospection of Noni with Edible Chicken Shank Gelatin Film as Osteoporosis Suplement Virita Rossa Pratiwi (a), Rafida arini (a), Ruly Budiono (a),Yasmi Purnamasari Kuntana (a)* a) Departement of Biology, Faculty of Mathematics and Natural Sciences, Padjadjaran University Jl. Raya Bandung Sumedang Km.21, Jatinangor, Jawa Barat 45363, Indonesia *Email: y.purnamasari[at]unpad.ac.id Abstract Osteoporosis is a degenerative disease in the form of deterioration of body structure and function which was originally dominated by the elderly is now shifting towards a younger age. Until now the pathophysiology has not been perfectly understood. This disease is a silent epidemic disease so it does not cause special symptoms but can be observed through blood and bone tests. Giving gelatin from chicken shank is proven to induce cartilage cell growth while noni contains various active compounds that are able to regulate the process of osteogenesis and increase serum calcium and alkaline phosphatase. This study aimed to see the effect of noni with edible gelatin film on bone tissue and blood of osteoporotic rats. The study was conducted experimentally using a complete randomized design in the laboratory. The treatment consisted of negative control P1 (aquades + glycerol), positive control P2 (dexamethasone + glycerol) and P3-P5 (dexamethasone + noni dose 50- 112- 250 mg/kg body weight per day with edible gelatin film). Dexamethasone 5 mg/kg body weight is injected subcutaneously for a week while Noni and gelatin are administered orally daily for 14 days. The study parameters included blood profile (erythrocyte count, leukocytes, Hb levels, blood calcium, and ALP) as well as femoral bone trabeculae thickness. The results showed that noni administration (doses of 50, 112, and 250 mg/kg body weight) with edible gelatin film increased trabeculae thickness, without changing the number of erythrocytes, leukocytes, blood Hb, Ca levels, and ALP. Thus, it can be concluded that noni and edible gelatin films are safe to give and have the potential as drugs and supplements for people with osteoporosis. Keywords: Gelatin shank chicken- Noni- Osteoporosis- Bone- Blood Share Link | Plain Format | Corresponding Author (Virita Rossa Pratiwi)

3	Biology	ABS-108
Analysis of nutrient and microbial content in ecoenzyme solution Hertien Koosbandiah Surtikanti(a*), Yanti Hamdiyati(b), Febby Nurfadilah(a) a) Prodi Biologi FPMIPA UPI, jalan Dr. Setiabudi 229 Bandung *hertien_surtikanti[at]yahoo.com b) Prodi Pendidikan Biologi FPMIPA UPI, jalan Dr. Setiabudi 229 Bandung Abstract Ecoenzyme is a solution of organic substances resulting from the fermentation of molasses, variation of organic waste (vegetables and fruit peels), and water with the proportion of 1:3:10. The use of Ecoenzyme as an organic fertilizer has been studied, however study on nutrient and bacteria analysis is limited. Therefore, the aim of this study was to analyze the content of nutrient and microbial in ecoenzyme. Analysis of N-Total. P2O5 and K2O in ecoenzyme are done by using Titrimetri, Spectrophotometri and Photometri respectively. Meanwhile microbial analysis is done as following bacteria isolation, making pure cultures, observing colony morphology both macroscopically and microscopically and testing the biochemical activity of bacteria. Testing the biochemical activity including starch hydrolysis test, fat hydrolysis test, gelatin hydrolysis test casein test, catalase test, H2S production test, indole test, MR-VP test, test citrate, carbohydrate fermentation test, motility test, oxidase test, nitrate reduction test, and urease test. The data analysis stage is carried out after obtaining data on the characteristics of the bacteria, then identification of the bacteria was carried out based on Bergey^s Manual of Determinative Bacteriology Ninth Edition (1994). The results showed that ecoenzyme contained NPK nutrients, namely 0.38% N element, 0.0% P element and 0.15% K element. These levels are still very low to meet the standard requirements for liquid organic fertilizer. Six genera of bacteria in the ecoenzyme solution were identified based on the results of microscopic, macroscopic observations and biochemical tests. There are Pseudomonas, Brucella, Bacillus, Neisseria, Sulfidobacillus and Alcaligenes. Keywords: ecoenzyme, nutrient analysis, microbacteria Share Link | Plain Format | Corresponding Author (Hertien Koosbandiah Surtikanti)

4	Biology	ABS-111
THE UTILIZATION OF GENETIC MARKERS AND MULTIPLEX-PCR FOR DETECTION THE HALALNESS OF PROCESSED MEAT PRODUCTS Diah Kusumawaty (a*), Nurul Faridah (a), Didik Priyandoko (a), Hanina Dzikrina (a), Azzania Febriani (b), Any Aryani (a) (a) Program Studi Biologi, Fakultas Pendidikan Matematika dan Ilmu Pengetahuan Alam Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No.229, Kel.Isola, Kec. Sukasari, Kota Bandung, Jawa Barat 40154 * diah.kusumawaty[at]upi.edu (b) Program Studi Biologi, SITH ITB, Jl. Ganesha 10 Bandung, Indonesia Abstract The increase in consumption of processed meat products has led to an increase in cases of mixing processed meat products with non-halal meat such as pork and rats. The use of DNA markers and Multiplex-PCR continues to be developed as a method of species detection in processed meat products. The main objective of this study was to design multiplex primer sequences of pigs, rats, cattle, and chickens that produce amplicons that can be distinguished by agarose gel electrophoresis for the detection of halal processed meat products. The primer design was performed using mitochondrial genome data and the NCBI-Primary BLAST site to obtain specific pig and bovine primer sequences. In silico Single and Multiplex-PCR simulations were performed using a Primer Pooler. In vitro validation was carried out through Single-PCR and multiplex-PCR annealing temperature optimization using samples of chicken, beef, pork, rat and processed meat products such as meatballs, sausages and nuggets. The results of the primary design found specific pig and bovine primer sequences with the ND5 target gene and the amplicon size of pigs and cattle was 860 bp and 1187 bp. The results of the in silico simulation showed that multiplex primers were found in the mitochondrial genome and amplified the target sequence to produce an amplicon with the longest size of 1202 bp. The validation results using the DNA amplification method with PCR showed that the halal marker gene multiplex primers succeeded in specifically amplifying the target sequence at the optimal annealing temperature of 60oC and the results of agarose gel electrophoresis visualization showed the amplicons for cow (1187 bp), pig (860 bp), rat (622 bp), and chicken (272 bp) which could be differentiated using 1.5% agarose electrophoresis. The multiplex primer amplification using samples of processed meat products can detect the species used in processed meat products so that the halalness can be determined. Keywords: DNA markers-Halal detection- Multiplex-PCR- Primer design- Processed Meat Products Share Link | Plain Format | Corresponding Author (Diah Kusumawaty)

5	Biology	ABS-163
THE MATURASE K REGION OF KEBAK, A JAVANESE CULTURAL FLORA Poppy Rahmatika Primandiri1,3, Muhammad Rifqi Hariri2, Tutut Indah Sulistiyowati1,3, Agus Muji Santoso1,3 1. Prodi Pendidikan Biologi, Universitas Nusantara PGRI Kediri 2. Pusat Riset Biosistematika dan Evolusi, Badan Riset & Inovasi Nasional 3. Kelompok Studi Biodiversitas, Universitas Nusantara PGRI Kediri Abstract Kebak is a historically significant plant in the Javanese cultural activity ^Ngunggahne Beras^. During Field Collection, several plants are morphologically indistinguishable, demanding the use of DNA sequences to back up the results of morphological identification. This research aims to describe the maturase k sequence and generate the first DNA barcode sequence of local kebak plants. The DNA was extracted from the leaves, amplified using matK universal primers, and sequenced. The morphological study identifies the kebak plant as Ficus fulva Reinw. ex Blume, a member of the Moraceae, the fig family. This species^ native range extends from northeast India to Malesia. This plant was distributed from Sumatra to Moluccas in Indonesia. It is a tree that performs well in the moist tropical biome. A length of 730 base pairs, partial region, of the matk Genes^ sequence was obtained. The sequence comparison through BLAST revealed that the sequence for Ficus fulva was unavailable, but it is 99.72% similar to Ficus esquiroliana H.Lév., a synonym for Ficus triloba Buch.-Ham. ex Voigt. Compared to four other Ficus species found in Java, the matK sequence revealed six diverse sites, suggesting that this region is predominantly conserved. Keywords: conservation, cultural plant, kebak, matK Share Link | Plain Format | Corresponding Author (Agus Muji Santoso)

6	Biology	ABS-164
MORPHOLOGICAL DIVERSITY OF Ipomea batatas (L.) Lamb. LEAVES CROSSED BETWEEN ANTIN 2 AND BETA 2 Sulistiono1*, Ida Rahmawati1, Poppy Rahmatika Primandiri1,3, Budhi Utami1, Mumun Nurmilawati2, and Agus Muji Santoso1,3 1 Pendidikan Biologi, Universitas Nusantara PGRI Kediri, 2 PGSD Universitas Nusantara PGRI Kediri, 3 Pusat Studi Biodiversitas, Universitas Nusantara PGRI Kediri Abstract Sweet potato has high genetic diversity. Analysis of genetic diversity based on phenotypic traits plays an important role in plant breeding. This study aims to describe the diversity of morphological structure of sweet potato leaves resulting from crosses between Antin 2 and Beta 2 accessions. The study was conducted in an observational, non-experimental manner on 40 individual plants resulting from crosses of sweet potatoes from the two accessions. The characters observed were young leaf colour, leaf shape, leaf edge, number of angles of leaf edge incisions, leaf vein colour, and number of primary leaf veins. The results of the study revealed that there were variations in the morphological characters of the leaves on the sweet potato crosses of Antin 2 and Beta 2. The colour of the young leaves varied, namely light green and green to purple, respectively 31 and 9 individuals- The second variation is the shape of the leaves, namely round and triangular, respectively 16 and 24 individuals. Other characters are flat leaf edges, finger grooved, finger-sharp and pointed respectively are 12, 11, 4 and 13 individuals- The number of angles varies, namely 6, 5, 4, 3 and 0, respectively 2, 14, 2, 4 and 18. The colour of the veins is also different, namely green and purple, respectively 26 and 14. As well as variations in the number of primary veins, numbering 5 , 6, 7 and 9 respectively 1, 6, 20 and 13. Keywords: Ipomoea batatas, morphology, plant breeding Share Link | Plain Format | Corresponding Author (Agus Muji Santoso)

7	Biology	ABS-170
Distribution and Abundance of Nepenthes (Nepenthes gymnamphora) in Sagara Mountain, Garut, West Java Tina Safaria (a*)(b), Wahyu Surakusumah (a), Miussa Rio Hibatulloh (a) (a) Department of Biology Education, Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Bandung, Indonesia (b) Floriculture Centre of Excellence, Universitas Pendidikan Indonesia *nilawati.tina[at]upi.edu Abstract Nepenthes sp. is a plant that can prey on insects with a unique ability, namely the modification of the tips of the leaves with tendrils that form pockets as an adaptive mechanism because it lives in nutrient-poor soil. Nepenthes sp is widespread in Indonesia with various species, some of which are even endemic and endangered species. Nepenthes gymnamphora is an endemic species on the island of Java, with a habitat growing in the mountains or highlands. Mount Sagara is one of the habitats of this plant in West Java. This research aims to determine and describe the distribution of N. gymnamphora plants found on Mount Sagara, Garut, West Java. The location where N. gymnamphora is located is close to plantation areas, entry areas and climbing tourism areas. Exploring it will damage the habitat where Nepenthes is located. The research was carried out using the exploratory method. The research area consists of two routes on each mountain. From the results of research, Nepenthes gymnamphora on Mount Sagara was found at an altitude of 1619-1975 meters above sea level as many as 224 individuals and their distribution grew randomly. Keywords: N. gymnamphora- Sagara Mountain Garut- Distribution- Abundance Share Link | Plain Format | Corresponding Author (Miussa Rio Hibatullah)

8	Biology Education	ABS-18
Mastery of Student Concepts about Substance Pressure in Biological Systems Viewed from Marzano^s New Taxonomy Through the implementation of the Think Read Group Share Reflect Strategy Sariwulan Diana, Raihana Nurul Isnaeni Program Studi Pendidikan Biologi, FPMIPA, Universitas Pendidikan Indonesia Abstract Because substance pressure includes material that is difficult and has the risk of causing misconceptions in junior high school students, it is necessary to find a way to solve this problem. The purpose of conducting research on the application of the TRGSR Strategy is to find ways to facilitate learning about substance stress so that it can reveal the mastery profile of students^ concepts in terms of Marzano^s new taxonomy. The research method used is action research by focusing on the application of the Think-Read-Group-Share-Reflect (TRGSR) learning strategy, starting with a pre-test, then studying substance pressure in animals and humans using the TRGSR strategy, then post-test 1. Furthermore, students study substances pressure in plants using the TRGSR strategy, then posttest 2.The research participants were 30 grade VIII students. The instruments used were questions in the form of PG, worksheets, observation sheets of TRGSR implementation and student response questionnaires to learning. Junior high school students^ mastery of the concept of substance pressure in biological systems through the application of the TRGSR strategy shows that nutrients transportation in plants and the structure of plant tissue with its function are the highest mastery. The lowest concept mastery is in implementing substance pressure in daily life. Almost all projected mastery of concepts according to Marzano^s taxonomy includes level of mental processing integration with the information domain knowledge. Most students gave a positive response to learning using the TRGSR strategy and the implementation of this strategy was also relatively high. Thus the TRGSR has the potential as one of the strategies to anticipate learning in other materials that are considered difficult. Keywords: substance pressure in biological systems, marzano^s new taxonomy, think read group share reflect strategy Share Link | Plain Format | Corresponding Author (Sariwulan Diana)

9	Biology Education	ABS-20
Analysis of Numeracy Literacy Skills of High School Students in Biodiversity Material Based on Minimum Competency Assessment Questions Via Aini(a), Topik Hidayat(b*), Kusnadi(c) Natural Science Education Postgraduate Study Program, FPMIPA UPI Abstract Numeracy literacy skills, which involve understanding numbers, symbols, and analyzing quantitative information (graphs, tables, charts, etc.), are highly important for the current generation. With a strong numeracy literacy skillset, students are capable of applying their knowledge effectively in real-life situations. This research aims to analyze the numeracy literacy skills of high school students in the subject Biology in biodiversity material, adapted to Minimum Competency Assessment (MCA) questions. Research method used was a descriptive method with a qualitative approach. Partisipants of this study were 80 of 10th grade Senior High School students in Pringsewu with convenience sampling technique. The research instrument consisted of 11 multiple-choice MCA questions that included numeracy literacy indicators. The results is the numeracy literacy skills of students remain unsatisfied (55.3% in content, 54.4% in cognitive process, and 39.4% in context). Therefore, numeracy literacy skills must be improved by providing a learning models that can train thinking and analytical skills, such as PjBL and inquiry models, and train students with questions. Keywords: Biodiversity, High School Students, Minimum Competency Assessment (MCA) Question, Numeracy Literacy Skills. Share Link | Plain Format | Corresponding Author (Via Aini)

10	Biology Education	ABS-33
A Cloning Issue of Human, Animal, and Plant in Biology Teachers^ Argumentation: A study in Islamic Organization-Based Schools Afridha Laily Alindra a*) Ari Widodo b) Fitri Nuraeni a) Nenden Permas Hikmatunisa a) Hafiziani Eka Putri a) Universitas Pendidikan Indonesia, Purwakarta Campus Jalan Veteran No. 8, Purwakarta 41115, West Java Province, Indonesia *afridhalaily[at]upi.edu Faculty of Mathematics and Science Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi 229, Bandung 40154, Indonesia Abstract Cloning is a fascinating topic in the socio-scientific question. This is a contentious question in both religion and science. Biology teachers must be able to deliver this topic proportionally in the practice of science learning in class. The purpose of this study is to investigate how biology teachers in Islamic organization-based schools argue over human, animal, and plant cloning. This study was carried out at three Islamic organization-based schools. This study used the qualitative technique, with observations of learning about cloning in class, a questionnaire, and an in-depth interview with biology teachers from three different schools in Banten Province, Indonesia. The findings of the study reveal that the topic of human, animal, and plant cloning is not only coupled with a religious aspect- there are distinct argumentative patterns in the minds of teachers. The designs are given in economic, social humanity and knowledge frameworks. These three frameworks provide the fundamental colors for each teacher^s discourse. As a result, more research is needed to investigate the effects of Islamic organizations on the arguments and practice of cloning issue teaching in Islamic organization-based schools. Keywords: Cloning, Argumentation, Islamic Organization-based Schools Share Link | Plain Format | Corresponding Author (AFRIDHA LAILY ALINDRA)

11	Biology Education	ABS-50
How is Student^s Awareness to Support Zero Food Waste for Sustainable Food System? Ghina Nur Inayah, Ari Widodo, Rini Solihat Education University of Indonesia Jl. Dr. Setiabudi Jawa Barat, Indonesia ghinanurinayah[at]upi.edu Abstract Abstract. Food waste is a primary concern worldwide, accounting for almost a third of the total food produced is wasted (FAO, 2017). Discarded food fills landfills and creates a massive waste of energy and a threatening source of methane gas. This study aims to see students^ awareness of supporting zero food waste for high school students in biology subject matter of environmental change. The research method used was descriptive qualitative, with a total sample of 72 students. Furthermore, using instrument questioners, the total of statements is 45 with five answer choices: strongly agree, agree, neutral, disagree, and strongly disagree. This instrument is included three indicators, namely conceptual knowledge, attitudes, and willingness to participate, each with 15 statement items for each indicator. Consisting of 2 classes, class A has studied environmental change material, and class B has yet to study environmental change material. Based on the results of the analysis, their level of awareness regarding the issue of food waste is the same. And it was found that students^ awareness of food waste still needed to be improved. Most teenagers have no clue about this issue. They do not know how their eating behaviour can significantly impact the environment. Therefore they need to increase their awareness of their eating behaviours because teenage students tend to be the biggest contributor to produce food waste since they have more choices in their food than other ages. Keywords: Zero Food Waste, Awareness, Enviromental Change, Sustainable Development Goals Share Link | Plain Format | Corresponding Author (Ghina Nur Inayah)

12	Biology Education	ABS-57
Development of Sustainable Awareness and Action Indicators on Sustainable Waste Management Topic Aisyah Zumira (a*), Ari Widodo (a), Rini Solihat (a) a) Biology Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No. 229 Bandung, West Java 40154, Indonesia *aisyahzumira[at]upi.edu Abstract To achieve the sustainable development goals, we must prepare the next generation who are aware of the concept of sustainability and have the competence to take actions in real situation. The topic of sustainable waste management is a crucial and important topic in our daily life, so it needs to be studied by students. The purpose of this study is to mapping and develop indicators of sustainable awareness and sustainable action on sustainable waste management topic in biology education for senior high school students. A descriptive study was used in this study, the research subjects involved 16 main journals from the ^Google Scholar^ database, which 8 journals for sustainable awareness term, and 8 journals from sustainable action term. These journals have priority in terms of citation because they are used as references in many studies. The data collected is mapped and categorized into several indicators, then integrated and described into sustainable waste management topic. The results obtained indicate that awareness and action are two things that are interrelated. The implications of research trends in SDGs and ESD provide opportunities for the development of assessment, technologies, and learning tools in each scientific discipline, where the directions have clear goals and standards. Keywords: sustainable awareness- sustainable action- sustainable waste management- biology education Share Link | Plain Format | Corresponding Author (Aisyah Zumira)

13	Biology Education	ABS-82
Development of Sustainable Awareness and Actions Instruments to Prevent and Overcome Food Loss and Waste Problems in Senior High School Students Zevira Fransisca Aurora1,b), Ari Widodo1,a), Rini Solihat1,c) 1Biology Education, Universitas Pendidikan Indonesia, Jl. Dr. Setiabudhi No.229 Bandung, West Java 40154, Indonesia Abstract This study aims to develop an instrument of sustainable awareness and sustainable action in preventing and overcoming the problem of food loss and food waste (FLW). The instruments developed are expected to support efforts in achieving 17 specific challenges in sustainable development (SDGs) especially in SDG number 12 namely regarding responsible consumption and production. The instrument developed consists of three sub dimensions, namely economy, society, and environment and consists of a level of awareness and action in the concept of sustainable development and practices, attitudes and moral values for sustainability. Instrument in the form of a questionnaire questionnaire 30 questions closed questions using a 4-point likert scale. Data was taken from the respondent of 72 high school students from SMA Kota Bandung. From the results it was found that the overall Cronbach alpha reliability coefficient was in the ^good^ category, while the item reliability coefficient was in the ^special^ category. So the instrument developed is feasible to be used to measure the profile of sustainability awareness in students. Keywords: sustainable awareness, sustainable action, sustainable development goals, food loss and waste, biology education Share Link | Plain Format | Corresponding Author (Zevira Fransisca Aurora)

14	Biology Education	ABS-113
IMPLEMENTATION OF LEARNING MANAGEMENT SYSTEM IN FACE-TO-FACE AND VIRTUAL LEARNING ON STUDENTS^ COGNITIVE ABILITIES ON BIOLOGY MATERIALS Nurul Hidayati Utami, aminuddin Prahatama Putra, Kaspul Lambung Mangkurat University Abstract Biology learning has characteristics with living creatures as objects. These objects are concrete and can be sensed by the learner. During the recovery process from Biology learning during the Covid 19 pandemic, various innovations have been carried out on a massive scale. One of the learning innovations carried out is using LMS in Biology learning which aims to organize learning which contains teaching materials, questions, collecting assignments and attendance lists related to learning at school carried out online and offline. This research aims to analyze the influence of LMS on learning at school on the cognitive learning outcomes of students in classes that implement virtual and face-to-face learning. This type of research is a descriptive researc, namely class 1 using LMS for virtual face-to-face learning, class 2 learning online without LMS, class 3 using LMS face-to-face learning and class 4 learning face-to-face without LMS. The research was carried out in the 2022-2023 academic year at Banjarmasin High School with a sample of 180 people. The results of students^ cognitive learning data were tested using Kruskall Wallis. Based on the research results, it is known that there are differences in the cognitive learning outcomes of students with Asymp scores. Sig. (2-tailed) was 0.000<0.004, apart from that, based on the results of further tests carried out, the class that used LMS and face-to-face learning had a better average cognitive score than the other three classes. Apart from that, the use of LMS and virtual face-to-face learning can help students to improve cognitive learning outcomes when compared to classes that only use virtual face-to-face learning. This shows that the use of LMS can help students improve cognitive learning. Keywords: Learning Management System, Learning Outcome, Virtual learning, Share Link | Plain Format | Corresponding Author (NURUL HIDAYATI UTAMI)

15	Biology Education	ABS-123
Analysis of Acceptance of Web Based Digital Learning Resource Center Kumatalibi.Com for Enriching Biology Learning Teaching Materials from the Perspective of Prospective Biology Teacher Students Sri Maryanti, Sri Hartati, Dede Trie Kurniawan Pendidikan Biologi FTK UIN Sunan Gunung Djati Bandung PGSD Kampus Universitas Pendidkan Indonesia Di Cibiru. Abstract This research aims to produce Web Based Digital Learning Resource Center Kumatalibi.Com products in secondary school biology learning. This research aims to describe the acceptance of prospective biology teacher students towards the Kumatalibi.Com Web Based Digital Learning Resource Center product. The approach used is a review of the UTAUT (Unified Theory of Acceptance Use of Technology) Model, which identifies factors that influence technology adoption. This research involved 100 prospective biology teacher students as the main respondents at one of the state Islamic universities in Bandung using a questionnaire to collect data, and using SmartPLS software as a tool for analyzing data. In this research, researchers analyzed four main factors in The UTAUT Model, namely affective need (14.2%), effort expectancy (16.5%), facilitating conditions (36.9%), and performance expectancy (24.1%). ). The results of this research provide deeper insight into the factors that influence prospective teacher students^ acceptance of Kumatalibi.Com Web Based Digital Learning Resource Center products. These findings can help in designing appropriate strategies to promote the use of Web Based Digital Learning Resource Center Kumatalibi.Com products in educational contexts. Keywords: Technology acceptance, UTAUT, SEM-PLS, Perspective of prospective teacher students, Web Based Digital Learning Resource Center, Biology Education Share Link | Plain Format | Corresponding Author (Sri Maryanti)

16	Biology Education	ABS-134
Autoethnography of An Environmentally Impactful Marine Biology Course in Support of Maritime-Related SDGs Bony Irawan1,2*, Alan Reid1, and Gillian Kidman1 1Faculty of Education, Monash University, Australia 2Faculty of Education and Teacher Training, Universitas Maritim Raja Ali Haji, Indonesia Abstract As the 2030 Agenda timeline draws closer, pressure and expectations increase on Higher Education Institutions (HEI) to better contribute to the Sustainable Development Goals (SDGs). While HEI are generally tied to the SDG 4 (quality education), specifically themed HEI have a strategic role in their related sector. In Indonesia, HEI with maritime-specific purposes serves a vital role to support the achievements of maritime-related SDGs. This paper takes an autoethnographic approach to provide a descriptive snapshot of efforts to develop an environmentally impactful marine biology course designed as a strategic effort to achieve the SDGs at the only maritime themed university in Indonesia. Experience and reflexivity from 7 years of teaching practice resulted in planting 15.000 mangrove seedlings are reflected upon to highlight initial challenges, pedagogy deliberation, network building, and maturation of the environmentally impactful course design. Keywords: SDG, Marine Biology, Mangrove Planting, Environmental Impact, Maritime Development Share Link | Plain Format | Corresponding Author (Bony Irawan)

17	Biology Education	ABS-160
Improving Metacognition Skills through Implementing ASICC-Based Student Worksheets on the Body^s Defense System Titik Ernawati1, Denis Agustin2, Nurul Agustini2, Ericka Darmawan3, Budhi Utami1, Poppy Rahmantika Primandiri1,4, Agus Muji Santoso1,4 Program Studi Pendidikan Biologi, Universitas Nusantara PGRI Kediri1, SMA Negeri 3 Kediri2, Pendidikan Biologi, Universitas Tidar3, Kelompok Studi Biodiversitas Universitas Nusantara PGRI Kediri4 Abstract The body^s defense system material is considered difficult by students because it contains abstract concepts. Based on the results of the preliminary study, students^ metacognitive skills have not been trained. ASICC is a learning model that is proven to be able to improve high-level thinking skills. However, the development of ASICC-based student worksheets to improve metacognitive skills has never been carried out. This research aims to apply ASICC-based student worksheets to improve metacognitive skills. A development studies-type research design was used in this research. The research was carried out at SMAN 3, Kediri City (East Java), which consisted of two main stages, namely the preliminary study and prototyping stages. Metacognition skill score data was obtained from the pre-test and post-test results. This study reported that there was an increase in metacognitive skills in the moderate category (0.39). In learning, student activities are more structured, starting with identifying problems, reflecting on themselves in learning, searching for key information, interpreting results, and formulating ideas. This activity is able to stimulate increased metacognitive skills. Keywords: student worksheets, body defense system, metacognition skills, ASICC. Share Link | Plain Format | Corresponding Author (Titik Ernawati)

18	Biology Education	ABS-161
IMPLEMENTATION OF ASICC-BASED STUDENT WORKSHEETS TO IMPROVE STUDENTS^ CRITICAL THINKING SKILLS ON THE TOPIC OF THE BODY^S IMMUNE SYSTEM Adelia Widiyanti1, Irfan Marzuki2, Nyoto Pujiandi2, Siti Ramdiah3, Budhi Utami1, Poppy Rahmatika Primandiri1,4, Agus Muji Santoso1,4 Program Studi Pendidikan Biologi, Universitas Nusantara PGRI Kediri1 SMAN 1 Kediri2 Program Studi Pendidikan Biologi, STKIP PGRI Banjarmasin3 Kelompok Studi Biodiversitas, Universitas Nusantara PGRI Kediri4 Abstract Critical thinking is a thinking skills that involves complex cognitive processes. Based on the results of a preliminary study, it was revealed that learning at SMA Negeri 1 Kediri was still carried out conventionally, causing students^ critical thinking skills to be low. Critical thinking can be trained in a structured manner and through cultivation in the learning process. This research aims to reveal the impact of implementing ASICC-based worksheets on critical thinking. The research was carried out at SMA Negeri 1 Kediri using the development studies method, which consisted of a preliminary study and a prototyping stage. The data collection technique used was an essay test and was given to 32 students. Research reveals that ASICC-based worksheets can improve high school students^ critical thinking skills. This is because students learn better through worksheets that contain cases and context. Keywords: ASICC, student worksheets, critical thinking, biology Share Link | Plain Format | Corresponding Author (Adelia Widiyanti)

19	Biology Education	ABS-162
Development of Student Worksheets Containing Green/Blue Economy for Prospective Teacher Students Agus Muji Santoso1,2, Poppy Rahmatika Primandiri1,2, Siti Zubaidah3 1 Program Studi Pendidikan Biologi, Universitas Nusantara PGRI Kediri 2 Kelompok Studi Biodiversitas, Universitas Nusantara PGRI Kediri 3 FMIPA, Universitas Negeri Malang Abstract Environmental damage, pollution, management of marine resources, and declining biodiversity indices have become global issues. The results of preliminary studies have shown that learning in education courses (for prospective teachers) has not integrated green and blue economy issues. In fact, the green/blue economy issue is a shared responsibility as a form of education for sustainable development (ESD). This research aims to develop student worksheets that integrate green and blue economies that are valid and practical. The research was carried out using the design research method and the development studies type, which consist of a preliminary study and prototyping stages. The student worksheet contains student learning activities with the learning stages of adapting, searching, interpreting, creating, and communicating (ASICC). Green and blue economy issues are used as a stimulus in the ASICC learning stages. This research reveals that (1) there are four green/blue economy contents that can be integrated into learning strategy courses- (2) the green/blue economy context that can be presented in learning includes data in the form of text, graphs, tables, diagrams, and other forms- and (3) three experts assessed that the worksheet was valid and therefore suitable for use in the next research stage. Keywords: ASICC, green economy, blue economy, student worksheets Share Link | Plain Format | Corresponding Author (Agus Muji Santoso)

20	Biology Education	ABS-171
How Students Creative Thinking Ability Through Microbial Growth Rate Worksheet on Nata de whey kefir? Tuti Kurniati, Asrianty Masud, Yusuf Jaelani Biology Education, Faculty of Tarbiyah and Teacher Training, Sunan Gunung Djati State Islamic University of Bandung, Indonesia Abstract Worksheets can be used as a solution in the success of the practicum process. Microbial growth rate worksheet on nata de whey kefir is able to teach students in solving problems based on research data obtained. This study aims to analyze students^ creative thinking abilities through sheets of microbial growth rates on nata de whey kefir. The method used in this research is Pre-Experimental Design with research design one-group pretest-posttest design. The population of this research is students sixth semester Biology Education Study Program. The research sample used a class of 21 students using a purposive sampling technique. The research instrument consists of description questions containing indicators of creative thinking. The results of research data analysis obtained an average N-gain for each indicator of creative thinking skills of 0.461 included in the ^medium^ criteria. Test the data hypothesis using the T-paired test obtained a significance value of 0.000 <0.05, then H0 is rejected and H1 is accepted. Based on the research results obtained data that there is an increase in students^ creative thinking skills through worksheets on the rate of microbial growth in nata de whey kefir. Keywords: Creative Thinking- Nata de whey kefir- Worksheet Share Link | Plain Format | Corresponding Author (Yusuf Jaelani)

21	Chemistry	ABS-3
Systemic Review Article: Composite Hydrogel Based on Chitosan/Polyvinyl alcohol as Drug Delivery Material Riri Uswatun Annifah (1), Asep Kadarohman (1), Fitri Khoerunnisa (1), Mita Nurhayati (1,2), Eli Hendrik Sanjaya (3) (1)Departement of Chemistry, Indonesia University of Education Setiabudi 229 Bandung 40154 Indonesia *Fitri[at]upi.edu (2) Department of Advanced Science and Technology Convergence, Kyungpook National University, Sangju-si, Gyeongsangbuk-do, South Korea (3) Departement of Chemistry, Universitas Negeri Malang. Jl. Semarang No. 5 Malang 65145, Indonesia Abstract Chitosan (CS) and polyvinyl alcohol (PVA) based hydrogels are potential materials for drug delivery applications. This review article aims to examine the synthesis methods, characterization, and effectiveness of CS/PVA hydrogels as drug delivery materials, i.e., nano-insulin, Ibuprofen, and enrofloxacin. Literature search was conducted using ScienceDirect and Google Scholar, selecting articles indexed by Scopus under Q1 and Q2 categories within the past five years. The synthesis of CS/PVA hydrogels was carried out using various methods, including crosslinking, freeze-thaw, and sol-gel. The characteristics of the hydrogels were evaluated using Fourier Transform Infrared (FTIR) spectroscopy, Scanning Electron Microscopy (SEM), and swelling ratio measurement Performance testing was conducted through drug release studies. The synthesis results indicated that the crosslinking method was the most effective for hydrogel synthesis. Characterization through FTIR spectroscopy revealed the absorption peaks for each precursor, particularly at 1570 cm-1 and 650 cm-1, indicating the presence of aromatic ring C=C and Cl groups. The best swelling ratio was achieved by CS/PVA/Glutaraldehyde/nano-insulin hydrogel, reaching up to 203.3%. The SEM images demonstrated the homogeneous surface of the hydrogel. Among the composite hydrogels, CS/PVA/Glutaraldehyde/nano-insulin showed the highest potential as a drug delivery agent, as demonstrated by the drug release profile with a release percentage of 91.8%. Keywords: inflammatory, composite hydrogel, CS/PVA, nano-insulin, drug release Share Link | Plain Format | Corresponding Author (Riri Uswatun Annifah)

22	Chemistry	ABS-16
QSAR, ADMET, and Molecular Docking of Pyrazole Carboxamide Derivatives as Potential Antifungals Against the Fungus Rhizoctonia solani Ranggaweny Al-Ghani (a), Adani Ghina Puspita Sari (a), Tria Nurwina Novianti (a), Hafiz Aji Aziz, M.Sc (a*) a) Department of Chemistry Education, Faculty of Mathematics and Natural Sciences Education, Universitas Pendidikan Indonesia Jl. Dr. Setiabudhi No. 229, Bandung 40154, Indonesia *ha.aziz[at]upi.edu Abstract Sheath blight is generally caused by the fungus Rhizoctonia solani. The emergence of this fungus has caused losses to farmers because it reduces the production of grain crops (cerelia) such as rice. Thus, the use of antifungal compounds containing succinate dehydrogenase inhibitors is an effort to control sheath blight of the fungus R. solani. In this research, we have studied a new pyrazole carboxamide derivative designed as a succinate dehydrogenase inhibitor. Predicted antifungal activity values were determined using the Quantitative Structure-Activity Relationship (QSAR) equation and visualization of the interaction of pyrazole carboxamide derivatives with succinate dehydrogenase inhibitors was determined using molecular docking. As many as 29 pyrazole carboxamide derivatives and activities (EC50) were used in this study for QSAR modelling and molecular docking. The structure has been optimized using the DFT/B3LYP/LanL2DZ method as an electronic descriptor calculation and QSAR modelling using the Multiple Linear Regression (MLR) method. The MLR test shows a valid QSAR equation model with good modelling accuracy and produces an equation : log⁡ EC50 = 2,3936 (±0,9447) [C13] + 9,1367 (±3,0682) [C10] + 2,2473 (±0,6055)[HOMO] - 48,1289 (±14,1289) [C4] + 1,3937 (±0,9465) [C14] + 28,3750 (±6,6731) with Rtr^2 = 0,8911- Q^2 = 0,793- F = 28,079- Rval^2 = 0,9908- RMSE=0,3450 ADMET analysis with admetlab indicated that the new pyrazole carboxamide derivative complies with Lipinski^s rules, is moderately carcinogenic, and includes inhibiting the activity of hERG blockers. The new pyrazole carboxamide derivative compounds that have the potential as succinate dehydrogenase inhibitors were determined based on the interaction of the docking results, namely compound A1 with a docking score of -4.9 kcal/mol, compound A5 with a docking score of -5.1 kcal/mol, and compound A7 with a docking score of - 5.3 kcal/mol. Keywords: QSAR, molecular docking, MLR, ADMET, antifungal Share Link | Plain Format | Corresponding Author (Adani Ghina Puspita Sari)

23	Chemistry	ABS-23
Synthesis Of Heterogenic Carbon Sulfonate Catalyst From Corn Cob Waste (Zea Mays L.) For The Production Of Biodiesel Additives Dian Ratna Suminar (a,b), Iman Rahayu(a), Eko Andrijanto (b), Cinantya Zahrina Pribadi(b), Qonita Rahmah Fitriana(b), Diana Rakhmawaty Eddy(a*) (a)Department of Chemistry, Universitas Padjadjaran, Sumedang, Jawa Barat, Indonesia-45363 *diana.rahmawati[at]unpad.ac.id (b)Department of Chemical Engineering, Politeknik Negeri Bandung, Gegerkalong Hilir, Bandung Barat, Jawa Barat, Indonesia - 40559 Abstract The use of energy in Indonesia still depends on fossil energy. If it is used continuously, it cannot provide energy in the future. The increase in fossil energy consumption also causes global warming. This has encouraged Indonesia to switch to renewable energy. Ethyl levulinate is a biomass-based chemical compound with various functions, one of them can be used as a fuel additive. This research was conducted to make Ethyl levulinate from levulinic acid and ethanol using a catalytic esterification reaction with carbon sulfonate as heterogeneous catalyst. Heterogeneous catalysts of carbon sulfonate were obtained from corn cobs waste which had been carbonized at 3000C for 6 hours and sulfonated using 98% sulfuric acid for 8 hours, and the acid density obtained was 0,726 mmol/gram. The catalyst were used for the esterification reaction with the operating variables that defined by the Box Behnken Design and the interaction between the variables was evaluated by the response surface methodology using Minitab software. The results illustrated that the optimum conditions were at an esterification time of 9 hours, a molar ratio of levulinic acid:ethanol = 1:10, and a 15%-wt catalyst loading to achieve a levulinic acid conversion of 93.51%. Meanwhile, based on the experimental results, the highest conversion of 83,15% was effected by the higher catalyst loading and reaction time at catalyst loading of 10%-wt, 9 hours of esterification and the molar ratio of levulinic acid:ethanol = 1:10. Keywords: sulfonated carbon- heterogeneous catalyst- corn cobs- esterification- biodiesel additives Share Link | Plain Format | Corresponding Author (Dian Ratna Suminar)

24	Chemistry	ABS-26
Electrospun PVDF-HFP/MgO nanofiber composites: influence of MgO nanoparticles content on nanostructure, thermal, mechanical, and surface characteristics Asnan Rinovian (a, e*), Muhamad Nasir (b), Muhammad Ali Zulfikar (c), Swasmi Purwajanti (d), Nugraha (a, d), Nurrahmi Handayani (c), and Muhammad Amin (e) a) Master Program in Nanotechnology, Institut Teknologi Bandung (Bandung, 40132, Indonesia) *asna002[at]brin.go.id b) Research Center for Environmental and Clean Technology, National Research and Innovation Agency (Bandung, 40135, Indonesia) c) Department of Chemistry, Institut Teknologi Bandung (Bandung, 40132, Indonesia) d) Department of Engineering Physics, Institut Teknologi Bandung (Bandung, 40132, Indonesia) e) Research Center for Mining Technology, National Research and Innovation Agency (Lampung, 35361, Indonesia) Abstract PVDF-HFP/MgO nanofiber composites have been successfully synthesized using the electrospinning process. The successful synthesis of the PVDF-HFP/MgO nanofiber composites was confirmed through XRD, FTIR, and SEM analyses. In the XRD results, distinct peaks were observed at diffraction angles of 42.80° and 62.27° in the PVDF-HFP/MgO nanofiber composites sample, corresponding to the diffraction angles of the MgO nanoparticles. The FTIR results exhibited an absorption band at a wavenumber of 667 cm-1, indicating the stretching vibration of Mg-O bonds. The morphology of pure PVDF-HFP nanofibers consisted of straight primary fibers, which were extremely fine and continuous, showing no bead formation, although the uniformity was not consistent. With an increase in MgO content in the nanofiber composites, the diameter of the nanofibers decreased. TGA demonstrated that the addition of MgO increased the degradation temperature of the nanofibers. However, the incorporation of nano MgO into the nanofibers led to a decrease in their tensile strength and contact angle with water. The pure PVDF-HFP nanofiber exhibited a tensile strength of 6.26 ± 0.25 MPa. In comparison, the PVDF-HFP/MgO nanofiber composites at concentrations of 10%, 20%, and 30% displayed respective tensile strength values of 4.59 ± 0.43, 3.07 ± 0.14, and 1.32 ± 0.04 MPa. The pure PVDF-HFP nanofiber displayed hydrophobic characteristics with a water contact angle of 134.3° (±2.89). The introduction of MgO nanoparticles decreased the contact angle value, causing water droplets to wet the membrane more quickly. These findings collectively indicate that the presence of MgO in the nanofiber composites allows for control and adjustment of their nanostructure, thermal behavior, mechanical properties, and surface characteristics. These features lay the groundwork for potential applications of PVDF-HFP/MgO nanofiber composites. One noteworthy application suggested by the observed characteristics is the utilization of these composites as adsorbents for pollutants in both liquid and gas environments. Keywords: PVDF-HFP/MgO, electrospinning, nanofiber composites, characteristic Share Link | Plain Format | Corresponding Author (Asnan Rinovian)

25	Chemistry	ABS-27
A Review : Synthesis, Recent Application and Future Challenge of SiO2 Nanoparticles in Membrane Technology Silvia Widiyanti(1), Fitri Khoerunnisa(*1), Mita Nurhayati(2), Hendrawan Hendrawan(1), Eli Hendrik Sanjaya(3), Wijayanti Dwi Astuti(4) 1)Department of Chemistry, Indonesia University of Education, Bandung 40154, Indonesia 2)Department of Advanced Science and Technology Convergence, Kyungpook National University, 2559 Gyeongsang-daero, Sangju-si 37224, South Korea 3)Department of Chemistry, Universitas Negeri Malang, Malang, 90222, Indonesia. *Corresponding Author^s email: fitri[at]upi.edu 4)Department of Electrical Engineering and Informatics, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia Abstract Membrane processes are well-established methods in real water treatment, renowned for their compact size, exceptional treatment effectiveness, and substantial water permeation capacity. The emergence of nanomaterials has ushered in thrilling prospects and progress in the membrane technology. Silica nanoparticles (NPs SiO2), a high-purity amorphous silica powder, is a white fluffy material characterized by its small particle size, and it brings numerous benefits due to its distinctive attributes. With a large specific surface area, strong surface adsorption, considerable surface energy, high chemical purity, and excellent dispersion, it holds significant value in diverse areas like medicine, physics, chemistry, and biology. NPs-SiO2 can be categorized into hydrophilic and hydrophobic types, which offers difference application in the membrane technology. In this review, NPs-SiO2 contained membranes are specifically discussed. The main goal is to provide critical analysis on recent application of SiO2 in membrane technology. Apart from the introduction and conclusion, this review has three consecutive parts including The synthesis methods of NPs-SiO2 contained membrane including size of the NPs-SiO2 that is mostly used in membranes, the application of the hydrophobic and hydrophilic NPs-SiO2 in the membrane technology, and the future challenge of NPs-SiO2 used in membrane technology. Keywords: Membrane technology- hydrophobic NPs-SiO2- hydrophilic NP-SiO2 Share Link | Plain Format | Corresponding Author (Silvia Widiyanti)

26	Chemistry	ABS-38
Portable Water Filter Package-Based Internet of Things to Provide Emergency Clean Water on Natural Disaster Zachnaz Fairuuz (1), Falah Hasbi Assidiqi (2), Imron Ahmadi (3), Reynard Benedict Septian (3), Tria Nurwina Novianti (1), Mita Nurhayati (1,4*) 1) Department of Chemistry, Indonesia University of Education, Bandung 40154, Indonesia 2) Department of Electrical Engineering, Indonesia University of Education, Bandung 40154, Indonesia 3) Department of Civil Engineering, Indonesia University of Education, Bandung 40154, Indonesia 4) Department of Advanced Science and Technology Convergence, Kyungpook National University, 2559 Gyeongsang-daero, Sangju-si 37224, Republic of Korea Abstract Located on the Pacific ring of fire, Indonesia remains highly vulnerable to a wide spectrum of natural disasters, each carrying the potential to disrupt vital infrastructure, including clean water supply networks and transportation corridors. Addressing this pressing concern, we have designed a tool in the form of a portable water filter package, adaptable under any conditions, complemented by an Internet of Things (IoT) framework. Dubbed as ADUS - an acronym signifying ^Air Darurat Untuk Semua^ or Emergency Water for All, our innovation takes the form of a compact backpack with dimensions of 48x25x71 cm. The water filter component is integrated into a device in the form of an Arduino Uno which is connected to a water pH sensor to select the feed at a certain pH range (6.5-8.5) in order to ensure the quality of the filtered water. Our study encompasses a comprehensive series of evaluations, encompassing component assessments, discharge trials, IoT system validation, and water quality enhancement. The observed water throughput was 5,227.92 liters/day, with each ADUS unit capable of fulfilling the needs of an entire neighborhood unit per day. The IoT system runs smoothly as indicated by the pH sensor and Arduino Uno Functioning according plan. The water quality improvement test resulted in a pH value according to water quality standards (6.5-8.5) and turbidity removal efficiency of 35.5%. The results of each of these tests indicate that ADUS is suitable for use in fulfilling emergency clean water supplies after natural disasters. Keywords: Clean water- filtration- natural disaster- Internet of Things Share Link | Plain Format | Corresponding Author (Zachnaz Fairuuz)

27	Chemistry	ABS-39
A NARRATIVE REVIEW : SYNTHESIS, PROPERTIES, AND PERFORMANCE OF POLYMER/ METAL ORGANIC FRAMEWORK (MOF) BASED MIXED MATRIX MEMBRANE FILTRATION Putri Sayyida Ashfiya (a) Asep Kadarohman (a), Fitri Khoerunnisa (a*), Mita Nurhayati (b), Eli Hendrik Sanjaya (c) a) Graduate Program of Chemistry, Indonesia University of Education, Bandung 40154 Indonesia *fitri[at]upi.edu b) Department of Advanved Science and Technology Convergence, Kyungpook National University, Sangju-si, Gyeongsangbuk-do, South Korea c) Departement of Chemistry, Universitas Negeri Malang. Jl. Semarang No. 5 Malang 65145, Indonesia Abstract Mixed matrix membranes (MMMs) have attracted remarkable attention as a leading-edge membrane filtration technology, due to their unique properties combining inherent characteristic of polymer and inorganic filler. Metal organic frameworks (MOFs) is one of recent nanoporous materials that has favorable to be used as a filler in MMMs to enhance molecular separation performance. This article aims to review the synthesis, properties, and performance of polymer/MOFs based MMMs. Literature search was conducted through Sciencedirect and Google Scholar by using the keywords of metal organic framework, MMMs, polymers, filler, and membrane filtration. The polymer/MOFs based MMMs can be synthesized using the in situ, layer by layer, and post-synthesis modification methods. Polymer/MOFs based MMMs have porosity of 57 to 65%, contact angle of 46.02 to 75.27, thickness of 0.34 to 0.5 mm, tensile strength of 2.33 to 3.34 MPa. Polymer/MOFs based MMMs also demonstrated superior performance in term of water permeability and BSA/salt rejection. The water flux of the MMMs reached up to 35.39 L/m2. h., and the rejection of MMMs toward BSA salt ions were up to 85% and 60%, respectively. The Polimer/MOFs based MMMs has great potential for ultrafiltration and nanofiltration. Keywords: Polymer/MOFs, Mixed matrix membrane, synthesis, properties, performance Share Link | Plain Format | Corresponding Author (Putri Sayyida Ashfiya)

28	Chemistry	ABS-40
Review Article: Synthesis, Characterization, and Applications Of Polyethersulfone/Polyvinyl Alcohol/Metal Oxide Based Composite Membranes Yurin Karunia Apsha Albaina Iasya (a), Fitri Khoerunnisa (a*), Asep Kadarohman (a), Mita Nurhayati (b), Eli Hendrik Sanjaya (c) (a)Department of Chemistry, Indonesia University of Education Setiabudi 229 Bandung 40154 Indonesia *fitri[at]upi.edu (b)Department of Advanved Science and Technology Convergence, Kyungpook National University, Sangju-si, Gyeongsangbuk-do, South Korea (c)Department of Chemistry, Universitas Negeri Malang. Jl. Semarang No. 5 Malang 65145, Indonesia Abstract Filtration membrane technology is a widely developed water treatment technique since it is easy to use, effective, and no addition of chemicals. Superior composite membrane performance lies in the selection of materials, synthesis techniques, and morphology. The article aims to examine the synthesis techniques and characteristics of polyethersulfone (PES)/Polyvinyl Alcohol (PVA)/metal oxide composite-based filtration membranes. In particular, the role of metal oxides filler (TiO2, ZnO, Fe3O4) toward membrane structure and properties is discussed in detail. Literature searches were conducted through ScienceDirect and Google Scholar. Identification and selection of articles were carried out through JabReff software based on the Scopus index in Q1 and Q2 in the last 5 years. The role of metal oxide filler toward membrane structure and properties was discussed systematically. It was found that there are 3 synthesis methods of PES/PVA/metal oxides membrane that commonly used i.e. (1) coating (2) dry jet/wet spinning and (3) electrospinning. Among those methods, the coating is the most considerable technique due to its capability on producing thin and dense membranes as well as modifying the surface properties of the membrane without affecting its intrinsic structure. The addition of PVA and metal oxides on PES membrane produced a composite membrane with improved hydrophilic nature (contact angle decreased from 26.76o to 65o) and porosity (28.2% to 70%). On the other hand, it reduced pore size from 29.6 nm to 4.7 nm. PES/PVA/metal oxide also demonstrated applications in term of dyes and salt rejection. Among the metal oxides, TiO2 was the best filler on PES/PVA membrane, as indicated by its morphological structure. Keywords: composite membrane, PES/PVA/metal oxides, synthesis, characterization, applications Share Link | Plain Format | Corresponding Author (Yurin Karunia Apsha Albaina Iasya)

29	Chemistry	ABS-44
Molecular Docking and ADMET Studies to Investigate Antioxidant Potency of New Amides of Piper retrofractum Vahl. by Targeting Keap1 Inhibitor Enung Siti Nurhidayah(a*), Darimiyya Hidayati(a), Risqina Amily Habiba(a), Syafira Maulidya(a) a) Department of Agroindustrial Technology, Faculty of Agriculture, Universitas Trunojoyo Madura, Jl. Raya Telang, Kamal, Bangkalan, East Java, Indonesia Abstract Air pollution can cause increasing free radicals in the body. Antioxidants are important in maintaining the balance of free radicals in the body. Piper retrofractum Vahl is a traditional medicinal herb from Indonesia. This study investigates the possible interactions between new amides of piper recrofractum and Keap1 inhibitor, one of the key proteins of the Keap1/Nrf2 pathway, the major system involved in redox regulation. Molecular docking study, using molecular mechanic calculations with YASARA to investigate binding energy and pkCSM to predict ADMET. Results this study showed that dipiperamides F has binding energy of 9,855 kcal/mol (closest to that of the crystallographic ligands), dipiperamides G (9,543 kcal/mol), piperodione(8,448 kcal/mol), (E)-N-cinnamoyl-2-methoxypiperidine (7,560 kcal/mol), (2E,12E)-pipertride cadienamid (7,084 kcal/mol), N-isobutyl-(2E,4E,10Z)-hexadeca-2,4,10- trienamide (6,788 kcal/mol), (R)-1-(2-oxopyrrolidin-3-yl)-5,6-dihydropyridin-2(1H)-one (6,524 kcal/mol), 2E,14Z)-N-isobutyleicosa-2,14-dienamide (5,116 kcal/mol). Visualization of receptors-ligands complex showed data on van der Waals interaction and hydrogen bonds, including hydrogen bond distances. Finally, ADMET (adsorption, desorption, metabolism, excretion, toxicity) predictions and drug-likeness properties were performed on the investigated compound. Our study indicates that new amides from piper recrofractum may behave as potential natural antioxidant agents by targeting the Keap1 inhibitor. Keywords: Antioxidant, Amide, Piper retrofractum Vahl., Molecular Docking Share Link | Plain Format | Corresponding Author (Enung Siti Nurhidayah)

30	Chemistry	ABS-52
The Influence of Nanomagnetite Filler (Fe3O4) and Magnetic Induction on the Characteristics and Performance of PVDF/SWCNT Composite Membrane Sifathul Jannah (a), Fitri Khoerunnisa (a*), Hendrawan Hendrawan (a), Mita Nurhayati (b), Eli Hendrik Sanjaya (c), Wijayanti Dwi Astuti (4) a) Department of Chemistry, Universitas Pendidikan Bandung 40154, Indonesia * fitri[at]upi.edu b) Department of Advanced Science and Technology Convergence, Kyungpook National University, 2559 Gyeongsang-daero, Sangju-si 37224, South Korea c) Department of Chemistry, Universitas Negeri Malang, Malang, 90222, Indonesia d) Department of Electrical Engineering and Informatics, Universitas Gadjah Mada, Yogyakarta, 55281, Indonesia Abstract The utilization of nanofiltration technology in the endeavor to harness seawater as an alternative source of clean water holds significant importance for development. Nanofiltration is used during the pretreatment phase of desalination, as an effort to curtail energy consumption and costs. The objective study is to investigate the influence of Fe3O4 nanomagnetite filler and magnetic induction on the characteristics and performance of the PVDF/SWCNT composite membrane. The composite membrane is synthesized through the phase inversion method with an optimal composition of PVDF casting solution (18 g), SWCNT (1 mg), and Fe3O4 (4 mg) in DMAc solvent. Magnetic induction is executed using a 1 Tesla magnet for a duration of 30 seconds after the casting solution is deposited onto the glass plate. The composite membrane is characterized by employing FTIR, XRD, SEM, hydrophilicity testing, and porosity analysis. The performance tests include pure water flux, dye rejection, and zero point of charge measurements. The results demonstrate that the addition of nanomagnetite filler and magnetic induction can enhance hydrophilicity (θ 70 to 50.96), porosity (48% to 73.07%), the changes in structure and morphology indicated by the interaction between Fe3O4 and PVDF/SWCNT, crystal size enhancement, d-spacing reduction, and alteration in lattice structure within the PVDF matrix that can lead to the enhancement of membrane performances. The addition of nanomagnetite filler and magnetic induction enhances the performance of the PVDF/SWCNT membrane. as evidenced by the increased pure water flux (6.54 L/m^2.h to 151.79 L/m^2.h) and the rejection of Rhodamine B and Methyl Orange up to 90%. Based on the zero point of charge measurement, it can be predicted that the membrane rejection mechanism occurs through size exclusion and electrostatic interactions. Keywords: Composite membrane, nanomagnetite, magnet induction, PVDF/SWCNT Share Link | Plain Format | Corresponding Author (Sifathul Jannah)

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