COMPARISON OF COLLAGEN EXTRACTION METHODS

Collagen is the most abundant protein in mammals. Collagen, commonly used in the food, pharmaceutical, cosmetic and leather industries, is commercially derived from by-products of mammals, such as pig and bovine. There are at least 20 different types of collagen detected so far. Most of the collagen in the body belongs to type 1, type 2 and type 3. Collagen properties vary according to the pre-treatment and extraction method. Salting out, acid hydrolysis and enzymatic hydrolysis methods are used for collagen extraction. In addition, recent studies have shown that the use of ultrasound is effective in increasing the extraction efficiency. In this review, studies on the effect of pre-treatment and different extraction methods on collagen yield were investigated