Physicochemical and Rheological Properties of White-Cheek Shark (Carcharhinus dussumieri) Skin Gelatin
作者： Hoda Shahiri Tabarestani , Naser Sedaghat , Mohsen Jahanshahi , Ali Motamedzadegan , Mohebbat Mohebbi
DOI: 10.1080/10942912.2015.1050595
关键词:
摘要: Physicochemical and rheological properties of white-cheek shark (Carcharhinus dussumieri) skin gelatin were determined as a function either an alkaline-acid or acid pretreatment. With pretreatment, the purity was increased, with significantly lower extraction yield, higher retention high molecular weight components, greater preservation triple helical structure. Moreover, from treated skins showed denser spherical structure, (p < 0.05) different textural properties, better thermostability (Tg = 21°C, Tm 27.5°C), values both G′ G″, gel strength (330 g), more imino acids (20.3%), lighter colored gels compared gelatin.
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