Interaction of Some Commercial Teas with Some Carbohydrate Metabolizing Enzymes Linked with Type-2 Diabetes: A Dietary Intervention in the Prevention of Type-2 Diabetes

Oboh, Ganiyu and Ogunruku, Omodesola O. and Ogidiolu, Funke O. and Ademiluyi, Adedayo O. and Adedayo, Bukola C. and Ademosun, Ayokunle O. (2014) Interaction of Some Commercial Teas with Some Carbohydrate Metabolizing Enzymes Linked with Type-2 Diabetes: A Dietary Intervention in the Prevention of Type-2 Diabetes. Advances in Preventive Medicine, 2014. pp. 1-7. ISSN 2090-3480

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Abstract

This study is aimed at assessing the inhibitory effect of teas on key enzymes (-amylase and -glucosidase) linked with type-2 diabetes and their antioxidant properties. Four samples of three brands were used; infusions of green tea (GT), 2 brands of black tea (BT), and a formulated herbal preparation for diabetes (ADT) (white tea, Radix Puerariae, Radix ophiopogonis, hawthorn berry, Chinese yam, and fragrant Solomon seal rhizome) were prepared and subsequently analyzed for their total phenol, ascorbic acid contents, antioxidant properties (2,2-Azizobis (3-Ethylbenzo-Thiazoline~6-sulfonate) “ABTS” scavenging ability and ferric reducing antioxidant property), and inhibition of pancreatic--amylase and intestinal--glucosidase in vitro. The study revealed that GT had the highest total phenol content, ascorbic acid content, ABTS* scavenging ability, and ferric reducing ability. Furthermore, all the teas inhibited Fe2+ and sodium nitroprusside induced lipid peroxidation in pancreas, with GT having the highest inhibitory effect. Conversely, there was no significant difference () in the inhibitory effects of the teas on -amylase and -glucosidase. The antidiabetic property of the teas could be attributed to their inhibitory effect on carbohydrate hydrolyzing enzymes implicated in diabetes and their antioxidant activities.

Item Type: Article
Subjects: Journal Eprints > Medical Science
Depositing User: Managing Editor
Date Deposited: 22 Dec 2022 12:47
Last Modified: 17 Jun 2024 06:02
URI: http://repository.journal4submission.com/id/eprint/553

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