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In vitro pancreatic lipase,cholesterol esterase and cholesterol micellization inhibitory activity of Sri Lankan low grown orthodox Orange Pekoe grade black tea(Camellia sinensis L.)

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摘要 Objective:To access the pancreatic lipase,cholesterol esterase and cholesterol micellization inhibitory activities of Sri Lankan low grown orthodox Orange Pekoe grade black tea made from uppermost tender leaves and unopened buds of Camellia sinensis L.Methods:Black tea brew(BTB)was made according to International Organization for Standardization 3103 specifications and concentrations of BTB tested were 37.5,75.0,150.0,300.0 and 600.0μg/mL for antilipase and anti-cholesterol esterase assays and 0.25,0.50 and 1.00μg/mL for cholesterol micellization inhibitory assay.Results:The results showed that BTB of Sri Lankan low grown orthodox Orange Pekoe grade black tea has marked and dose-dependent(r^(2)=0.95)cholesterol micellization inhibitory activity in vitro comparable to epigallocatechin gallate,the reference drug used.In contrast,BTB had only mild but dose-dependent(r^(2)=0.94)inhibitory activity against pancreatic lipase and weak inhibitory effect(up to 13.17%)on pancreatic cholesterol esterase.Conclusions:It is concluded that consumption of BTB of Sri Lankan low grown orthodox Orange Pekoe grade tea as a beverage may be a useful strategy in the management of hyperlipidaemia.
出处 《Journal of Coastal Life Medicine》 2015年第7期570-574,共5页 海岸生命医学杂志(英文版)
基金 Supported by National Science Foundation of Sri Lanka(Grant No.NSF/Fellow/2011/01).
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