文献类型：期刊文献

中文题名：白骨壤果实7种溶剂提取液的自由基清除作用

英文题名：Free radical scavenging activity of seven different extracts from the fruits of Avicennia Marina

作者：杨维[1];夏杏洲[1,2];韩维栋[3];谌素华[1];王维民[1]

机构：[1]广东海洋大学食品科技学院,广东湛江524088;[2]华南理工大学轻工与食品学院,广东广州510640;[3]广东海洋大学农学院,广东湛江524088

年份：2011

卷号：32

期号：6

起止页码：102

中文期刊名：食品工业科技

外文期刊名：Science and Technology of Food Industry

收录：CSTPCD、、CSCD2011_2012、北大核心2008、北大核心、CSCD

基金：广东海洋大学自然科学基金-红树林团队项目(0712117)

语种：中文

中文关键词：白骨壤果实;超氧阴离子;羟自由基;DPPH自由基

外文关键词：Avicennia Marina; superoxide anion; hydroxyl radical; DPPH·

中文摘要：用水、95%乙醇、甲醇、丙酮、正丁醇、乙酸乙酯、石油醚为溶剂浸提白骨壤果实,分别采用DPPH法、Fenton反应、邻苯三酚自氧化法测定了7种提取液清除DPPH自由基、羟自由基的能力、超氧阴离子自由基的能力。结果表明:水、甲醇、95%乙醇提取液得率及总黄酮含量最高;7种白骨壤果实提取液对DPPH·、·OH及O-2·三种自由基均显示出一定的清除能力,甲醇、水、95%乙醇三者的提取液清除三种自由基的能力及总抗氧化活性较强,正丁醇、丙酮、乙酸乙酯提取液的清除活性和总抗氧化活性次之,石油醚提取液的最弱。

外文摘要：The dry fruit of Avicennia Marina was extracted with seven different solvent dipping at normal temperature to get methanol extract,water extract,95% ethanol extract,acetone extract,n-butanol extract ethyl acetate extract and petroleum extract,then their scavenging activities of 2,2-Diphenyl-1-picrylhydrazyl（DPPH）free radical,hydroxyl free radical（·OH）,superoxide free radical（O-2·）were measured by the methods of DPPH,Fenton,pyrograllol auto-oxidation respectively.The results showed higher extraction rate and total flavonoids yield in water extract,methanol extract and 95% ethanol extract,and all seven extracts exhibited certain radical scavenging activities on DPPH·,·OH and O-2·.The antioxidant and radical scavenging activities of water extract,95% ethanol extract and methanol extract was higher than acetone extract,n-butanol extract and ethyl acetate extract,while weak activity in petroleum extract.