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Abstract Title:

Antioxidant and antidiabetic activity of blackberry after gastrointestinal digestion and human gut microbiota fermentation.

Abstract Source:

Food Chem. 2018 Dec 15 ;269:618-627. Epub 2018 Jul 3. PMID: 30100480

Abstract Author(s):

Vemana Gowd, Tao Bao, Liling Wang, Ying Huang, Shenghuizi Chen, Xiaodong Zheng, Sunliang Cui, Wei Chen

Article Affiliation:

Vemana Gowd

Abstract:

Blackberry fruit contains high levels of polyphenols particularly anthocyanins which contribute to its biological activities. Bioavailability of polyphenols especially anthocyanins is generally low, it has been proposed that metabolites from polyphenol biotransformation under colonic fermentation are components that exert health benefits. In this study, blackberry was subjected to simulated gastrointestinal digestion and gut microbiota fermentation at different time intervals (0-48 h) to study the changes in bioactive components, its antioxidant and antidiabetic activities. Phenolic compounds, during digestion and fermentation were also analysed. Gut metabolites of blackberry significantly increased the glucose consumption and glycogen content in HepG2 cells. Furthermore, gut metabolites ameliorated high glucose plus palmitic acid-induced ROS overproduction, mitochondrial membrane collapse, and glutathione depletion in HepG2 cells. The mechanism of antidiabetic activity of blackberry was via its potent antioxidant activity. Therefore, our results suggest that blackberry could be recommended as a functional food due to potential antioxidant and antidiabetic activity.

Study Type : In Vitro Study

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Sayer Ji
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