Characteristics and Antioxidant of Goat Skin Gelatin Pretreatment with Lactobacillus plantarum 1UHCC and Acetic Aci

Goatskin with lactobacillus plantarum 1UHCC pretreatment, and acetic acid are expected to be able to explore goat skin gelatin at different ages so that it has high quality and health benefits as an antioxidant. The quality of the resulting goat skin gelatin was evaluated of its antioxidant content using the Diphenylpicrylhydrazyl (DPPH) method, protein content, fat content, water content, Fourier Transform Infrared Spectroscopy (FTIR). A combination of different goat ages with L. plantarum pretreatment results in a higher antioxidant effect. Protein and fat levels and other chemical properties of gelatin influence antioxidant activity, as well as changes in functional groups of gelatin using Fourier Transform Infrared Spectroscopy (FTIR), detected four amide areas was amide group A (3566.38 - 2854.65 cm-1), amide group I (2358.94 - 2126.56 cm-1), amide group II (1452, 40 cm-1) and amide III group 1080.14 - 669.30 cm-1. The existence of hydrogen bonds allows the formation of free radical bonds in gelatin. In conclusion that L. plantarum 1 uhcc pretreatment at 1-year-old goat skin has the highest antioxidant content. Likewise, the chemical properties of goat skin gelatin were strongly related to the antioxidant activity of gelatin.