The CH3CO2H Effect on The Quality of Halal Gelatin from Gouramy (Osphronemus gouramy) Bone Anggita Rahmi Hafsari, Auiia Ainul Wardah
Departement of Biology, Universitas Islam Negeri Sunan Gunung Djati Bandung
Jalan AH. Nasution No 105, Bandung 40614
Abstract
Gouramy (Osphronemus gouramy) bones are wastes that have not been used optimally and contain collagen to produce gelatin. In the other hand, gelatin is a natural product of collagen hydrolysis and a soluble protein that functions as a gelling agent. Generally, the manufacturing process begins by immersing the bones in an strong acidic solution to dissolvee calcium phosphate and other mineral salts. This treatment produces changes in softness for the bones to become relatively soft, using a weak acid CH3CO2H with a concentration level of 5%, 10%, 15%, 20%, and 25%. Therefore, this study aims to determine the quality of gelatin with various concentrations of acetic acid. The results showed that the best treatment to produces gelatin was at a concentration level of 25% of acidic acid, the ampunt of moisture, ash, protein content, gel strength, viscosity, pH, and yield of 7.2%, 0.65%, 37.40%, 126.98 bloom, 5.60 cP, 5.42%, and 19.3%, respectively.
