梨皮多酚的乙醇提取及抗氧化性研究  

Ethanol Extraction and Antioxidant Research on Polyphenols of Pear Skin

作　　者：宋慧[1] 成军 SONG Hui;CHENG Jun(College of Food and Biological Engineering,Xuzhou Institute of Technology,Xuzhou221018,China)

机构地区：[1]徐州工程学院食品与生物工程学院

出　　处：《徐州工程学院学报（自然科学版）》2019年第4期28-31,共4页Journal of Xuzhou Institute of Technology(Natural Sciences Edition)

基　　金：国家自然科学基金项目（31401553）;江苏省高校自然科学计划重点项目（13KJA550002）

摘　　要：为研究梨皮多酚提取物的抗氧化性能,采用4种不同体积分数乙醇溶剂提取梨皮中的多酚物质,并对梨皮多酚提取物的清除DPPH自由基能力、清除ABTS自由基能力以及对脂质过氧化物和亚硝化反应的抑制能力等进行实验分析.研究结果表明:采用体积分数70%乙醇溶液提取梨皮多酚效果最好,提取率达35.56%;其体外抗氧化能力均高于其它溶液提取物,是较理想的梨皮多酚物质的提取溶剂.In order to study the antioxidant properties of pear skin polyphenol extract,four kinds of different volumes of solvents were used to extract the polyphenol from the pear skin,and the scavenging ability of polyphenol extract from pear peel to DPPH radical,ABTS radical,lipid peroxide and nitrification were also studied.The results show that the extraction of pear skin polyphenols by 70%ethanol solution is the best,and the extraction rate is 35.56%,and the four Rinds of in-vitro antioxidant capacity involved in the experiment are higher than that of other soventextracts,which is an ideal solvent for the extraction of polyphenols from pear skin.

关 键 词：梨皮多酚 乙醇 溶剂 提取物 抗氧化性 DPPH ABTS 

分 类 号：TS255.4[轻工技术与工程—农产品加工及贮藏工程]