荷叶黄酮化合物对胰脂肪酶抑制作用的研究

荷叶粗粉用60%乙醇回流提取,经石油醚脱脂,再用聚酰胺柱色谱分离得到不同部位的黄酮提取物。通过比较50%乙醇洗脱部位的黄酮提取物和市售减肥药奥利司他(Orlistat)对胰脂肪酶的抑制作用,得到它们的半抑制率IC50分别为0.0076,0.0048mg/mL。通过Lineweaver-Burk图和Dixon图的特征,表明该抑制剂对胰脂肪酶的抑制呈非竞争性抑制,抑制常数Ki=0.0147mg/mL,米氏常数Km=42.2mg/mL。...

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Published in:Tian ran chan wu yan jiu yu kai fa 2008, Vol.20 (2), p.328-331
Main Author: 霍世欣 周陶忆 司晓晶 吕敬慈
Format: Article
Language:Chinese
Subjects:
抑制剂
胰脂肪酶
荷叶
黄酮
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description 荷叶粗粉用60%乙醇回流提取,经石油醚脱脂,再用聚酰胺柱色谱分离得到不同部位的黄酮提取物。通过比较50%乙醇洗脱部位的黄酮提取物和市售减肥药奥利司他(Orlistat)对胰脂肪酶的抑制作用,得到它们的半抑制率IC50分别为0.0076,0.0048mg/mL。通过Lineweaver-Burk图和Dixon图的特征,表明该抑制剂对胰脂肪酶的抑制呈非竞争性抑制,抑制常数Ki=0.0147mg/mL,米氏常数Km=42.2mg/mL。
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subjects 抑制剂
胰脂肪酶
荷叶
黄酮
title 荷叶黄酮化合物对胰脂肪酶抑制作用的研究
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