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Abstract Title:

Keemun black tea extract contains potent fatty acid synthase inhibitors and reduces food intake and body weight of rats via oral administration.

Abstract Source:

J Enzyme Inhib Med Chem. 2005 Aug ;20(4):349-56. PMID: 16206829

Abstract Author(s):

Ya-Tao Du, Xuan Wang, Xiao-Dong Wu, Wei-Xi Tian

Article Affiliation:

Ya-Tao Du

Abstract:

The inhibitory effects of a black tea extract on fatty acid synthase were measured through inhibition kinetics. The Keemun black tea extract showed more potent inhibitory activity on fatty acid synthase than green tea extract. Additionally, the inhibitory ability of the black tea extract depended on the extracting solvent and the conditions used. Only 10-23% of the inhibitory activity from the black tea was extracted by the general method of boiling with water. The results suggested that the main fatty acid synthase inhibitors in black tea might be theaflavins. Which were more potent than epigallocatechin gallate or C75. The reaction site on the fatty acid synthase and the inhibition kinetics for the extract were different from those of epigallocatechin gallate or C75. In addition, Keemun black tea extract significantly reduced food intake, body weight and blood triglyceride of diet-induced obesity SD rats via oral administration.

Study Type : Animal Study

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Sayer Ji
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