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Physicochemical and biochemical properties of pepsin-solubilized collagen isolated from the integument of Sea Cucumber (Stichopus vastus)

Abedin, Md. Zainul and Karim, Alias A. and Latiff, Aishah A. and Gan, Chee-Yuen and Che Ghazali, Farid and Zzaman, Wahidu and Hossain, Md. Murad and Ahmed, Faiyaz and Absar, Nurul and Sarker, Md. Zaidul Islam (2013) Physicochemical and biochemical properties of pepsin-solubilized collagen isolated from the integument of Sea Cucumber (Stichopus vastus). Journal of Food Processing and Preservation. XX-XX. ISSN 0145-8892 (In Press)

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Abstract

The integument (high collagen content) of sea cucumber Stichopus vastus is generally wasted after harvesting, whereas only its stomach and intestines are eaten in few Asian countries. Amino acid composition, thermal transition temperature (Tm), zeta potential, solubility, moisture absorption and retention capacities, proximate composition and morphology of pepsin-solubilized collagen (PSC) isolated from the integument of S. vastus were studied. Amino acid composition revealed that glycine was dominant in the isolated collagen. PSC was found to have an isoelectric pH of 4.67, good moisture absorption and retention capacity at higher humidity, a sharp effect of pH and NaCl concentration on solubility, and an inverse relationship between temperature and viscosity. PSC also showed the maximum Tm to be 37.3C, very high protein content and ultrastructural characteristics. Hence, the PSC has the potential to be used as a functional ingredient in food, cosmetics and nutraceutical products.

Item Type: Article (Journal)
Additional Information: 6605/33165
Uncontrolled Keywords: sea cucumber Stichopus vastus
Subjects: T Technology > TP Chemical technology > TP368 Food processing and manufacture
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button): Kulliyyah of Pharmacy > Department of Pharmaceutical Technology
Depositing User: Professor Dr. Md. Zaidul Islam Sarker
Date Deposited: 09 Dec 2013 11:06
Last Modified: 27 Sep 2017 12:03
URI: http://irep.iium.edu.my/id/eprint/33165

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