Optimization Of Curing And Extraction Time On Production Of Base Gelatin From Bovine Skin Material

To explore gelatin materials used in any purposes for food additive with Indonesian local sources, gelatin in this study was prepared from bovine skin via base method.The effects of curing (10, 30, and 50 days) and extraction time (4, 5, and 6 hours) on yield percentage, pH, viscosity, organoleptic properties (odor, taste, and color), water contents, as well as the ash content of its material were invested.The results showed that the bovine gelatin with longer curing time and longer extraction time exhibited biomaterial with higher yield percentage, higher pH, lower viscosity, darker color, higher water and ash content.No obvious differences were detected from physical shape, odor and texture of bovine material that prepared with longer stirring time and longer extraction time.To sum up, the bovine skin gelatin which produced with 30 days curing time and 5 hours extraction time showed better water content, viscosity, and organoleptic properties compared to the others.Despite producing higher ash contents and pH, the manufacturing process with longer curing and extraction time could still be applied considering the water content, viscosity and organoleptic properties as long as meeting the standard of GMIA and (SNI) 06-3735-1995