何首乌中反式和顺式白藜芦醇的淬灭羟自由基能力的比较研究
首发时间:2015-06-01
摘要:本试验用乙醇从何首乌(Polygonum multiflorum Thunb)中提取白藜芦醇单体,在254nm紫外灯下照射18min诱导成为顺式单体。用HPLC纯化分离出反式和顺式白藜芦醇,使用CuSO4-Phen-Vc-H2O2-DNA体系检测两种单体的淬灭羟自由基的能力。结果显示,顺式单体较反式单体具有更显著地淬灭羟自由基的能力。
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Study On Quenching Hydroxyl Free Radical By E--and Z--isomers Of Resveratrol From Polygonum Multiflorum Thunb
Abstract: Used the ethanol from Polygonum multiflorum Thunb extract resveratrol monomer,on the 254nm under UV light irradiation induced by 18 min into CIS monomer. With HPLC isolation and purification of a trans and CIS resveratrol, the ability to use CuSO4-Phen-Vc-H2O2-DNA system for detection of two kinds of monomer quenching hydroxyl free radical. The results showed, compared with the trans CIS monomer monomer has the ability to significantly quenching hydroxyl free radical.
Keywords: Polygonum multiflorum Thunb resveratrol free radieal
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No.4642262105943214****
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何首乌中反式和顺式白藜芦醇的淬灭羟自由基能力的比较研究
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