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The effects of Lycium barbarum water extract and fish collagen on milk proteolysis and in vitro angiotensin I‐converting enzyme inhibitory activity of yogurt
Author(s) -
Shori Amal Bakr,
Ming Kong Siew,
Baba Ahmad Salihin
Publication year - 2021
Publication title -
biotechnology and applied biochemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.468
H-Index - 70
eISSN - 1470-8744
pISSN - 0885-4513
DOI - 10.1002/bab.1914
Subject(s) - lycium , food science , proteolysis , chemistry , fish <actinopterygii> , in vitro , enzyme , angiotensin converting enzyme , biochemistry , biology , medicine , endocrinology , alternative medicine , pathology , fishery , blood pressure
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.