Study On The Preparation Technology And Functional Properties Of Pig Skin Collagen Powder
Keywords
Pig Skin Collagen, Pepsin, Functional Properties
Abstract
In this study, soluble collagen was extracted using a weak acid plus enzyme method at 4¡ãC and dried into powder. Then, the extracted pig skin was ground with a colloid mill using 60% ethanol solution as a carrier to prepare insoluble collagen powder. The collagen content and functional properties were further measured. The results show that the optimal preparation process of pig skin collagen powder is: using pH 2.0 acetic acid + 0.2% pepsin and a solid-liquid ratio of 1:15 to extract pig skin for 48 hours, the dissolution rate of soluble collagen is 0.602%; the remaining pig skin is used Insoluble collagen powder can be obtained by grinding 60% ethanol carrier and drying it. The obtained collagen powder has excellent functional properties. The hydroxyproline content measurement shows that the soluble collagen powder has a collagen purity of 95.1% and the insoluble collagen powder has a collagen purity of 82.9%. The process route is easy to achieve large-scale production.
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Original research was done by Wu Tong, Cao Xianghui, Kim Myung-hee, Han Dequan
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