Pengaruh Suhu Ekstraksi Terhadap Karakteristik Gelatin dari Sisik Ikan Lates calcarifer dan Oreochromis niloticus

Indonesia is the largest fish producer derived from marine products and freshwater aquaculture. Fish scales are fish waste that has been studied for its utilization, one of which is for gelatine manufacture. This study aims to determine the effect of different extraction temperatures on the quality of gelatine scales of seawater fish (Lates calcarifer/white snapper), and freshwater fish (Oreochromis niloticus/red tilapia). This research method compares gelatine quality with extraction using sonication technology with extraction temperature variations, namely 55, 60, and 65 °C. Gelatine from white snapper scales with extraction temperature by sonication at 60 °C has the highest yield of 14.79%, with water content of 10.61%, ash content of 1.79%, pH of 4.86, viscosity of 4.41cps, and content of Cu and Zn respectively of 4.61, and 2.99 mg/kg. Gelatine from red tilapia scales with extraction temperature by sonication at 65 °C has the highest yield of 11.62%, with water content of 9.05%, ash content of 2.70%, pH of 5.09, the viscosity of 1.61cps, and content of Cu and Zn was 11.88 mg/kg and 2.59 mg/kg, respectively. The results of this study can conclude that the two types of fish produce gelatine that meets the standard requirements, and the extraction temperature affects the gelatine yield of the two fish.