Optimization of collagen extraction process from skin of stingray (rajiformes)
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lucnt@hcmute.edu.vnTừ khóa:
collagen, stingray skin, extracted, process optimization, acetic acidTóm tắt
Collagen is widely used in the manufacture of food, pharmaceutical and cosmetic products. Collagen from fish skin has many advantages over other collagen sources, hence, the research of collagen from stingray skin is of interest. The process of cleaning and extracting collagen from stingray skin has been investigated and optimized to create good collagen quality from stingray skin. The optimal conditions of collagen extraction were determined, with three independent factors: acetic acid, solid-to-liquid ratio and extraction time which all affect the extraction efficiency of stingray skin. The optimal conditions to obtain the highest extraction efficiency were determined at acetic acid content of 0.578M, solid-to-liquid ratio of 1/11, and extraction time of 53 hours. Under these optimal conditions, the extraction efficiency reached the highest level of 72.29%. This result is the scientific basis for selecting the optimal conditions for collagen processing from the stingray skin byproducts with the highest quality, creating collagen with white color, and soft fiber structure to meet the commercial collagen quality.
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