襄荷乙醇提取物的体外抗氧化活性研究  

Study on antioxidant activity of extract from Zingiber mioga rose in vitro

作　　者：张泽生[1] 王玉本[1] 黄闯[1] 王翠[1] 

机构地区：[1]天津科技大学食品工程与生物技术学院,天津300457

出　　处：《食品工业科技》2010年第12期282-283,286,共3页Science and Technology of Food Industry

摘　　要：目的:研究襄荷乙醇提取物(extract of Zingiber mioga Rose,EZR)的体外抗氧化作用。方法:用50%乙醇制备襄荷提取物,以VC作为阳性对照,测定EZR的总还原力及清除DPPH自由基的能力,并用荧光化学发光法测定了EZR对活性氧自由基(O2-·、·OH、H2O2)的清除能力。结果:EZR的总还原力为40·17±1·04mgVC/g,在实验浓度范围内,对DPPH·、·OH、O2-·、H2O2的清除率分别达到了70%、64%、77%、71%。结论:EZR具有明显的体外抗氧化活性,但其抗氧化能力小于V。Objective：To study the antioxidant properties of extract of Zingiber mioga Rose（EZR）in vitro.Method：EZR was prepared by 50% ethanol.Using VC as a positive control,the reducing power and DPPH· scavenging activity of EZR were measured,and the scavenging activity of EZR against oxygen free radicals（·OH、O-2·、H2O2）was determined by fluorescent chemiluminescence method.Result：The reducing power of EZR was 40.17±1.04mg VC/g.Within the concentration range,the scavenging rate against DPPH·,·OH,O-2·,H2O2 reached to 70%,64%,77%,71%,respectively.Conclusion：EZR had obvious antioxidant activities in vitro,but was lower than that of VC.

关 键 词：襄荷 抗氧化活性 清除自由基 体外 

分 类 号：TS201.1[轻工技术与工程—食品科学]