The effects of Lycium barbarum water extract and fish collagen on milk proteolysis and in vitro angiotensin I-converting enzyme inhibitory activity of yogurt

Shori, Amal Bakr and Ming, Kong Siew and Baba, Ahmad Salihin (2021) The effects of Lycium barbarum water extract and fish collagen on milk proteolysis and in vitro angiotensin I-converting enzyme inhibitory activity of yogurt. Biotechnology and Applied Biochemistry, 68 (2). pp. 221-229. ISSN 0885-4513, DOI https://doi.org/10.1002/bab.1914.

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Abstract

Plain and Lycium barbarum yogurt were made in the presence and absence of fish collagen. Yogurt samples were analyzed for acidification, milk protein proteolysis, angiotensin I-converting enzyme (ACE) inhibitory activity, and sensory evaluation during refrigerated storage for up to 21 days. The o-phthaldialdehyde peptides amount of L. barbarum yogurt both in the presence and absence of fish collagen were significantly increased during 14 days of storage. SDS-PAGE showed improvement in whey proteins degradation of L. barbarum yogurt with/without fish collagen after 3 weeks of storage. L. barbarum yogurt in absence of fish collagen was acting as a great ACE inhibitor reached up to 85% on day 7 of storage. The incorporation of L. barbarum and/or fish collagen affected to a small extent the overall sensory characteristics of yogurt. Yogurt supplemented with L. barbarum and/or fish collagen may lead to the improvement in the production and formulation of yogurt differing in their anti-ACE activity.

Item Type: Article
Funders: Deanship of Scientific Research (DSR), King Abdulaziz University, Jeddah (D-047-247-1441), DSR
Uncontrolled Keywords: Yogurt; Lycium barbarum; Proteolysis; Fish collagen; ACE inhibitory activity
Subjects: Q Science > QH Natural history > QH301 Biology
Divisions: Faculty of Science > Institute of Biological Sciences
Depositing User: Ms Zaharah Ramly
Date Deposited: 01 Jun 2022 07:47
Last Modified: 01 Jun 2022 07:47
URI: http://eprints.um.edu.my/id/eprint/27220

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