2023,32(1)福建分析测试FujianAnalysis&Testing花生衣中儿茶素的提取与纯化工艺研究倪沁颜(福建省测试技术研究所,福建福州350003)收稿日期:2022-8-24作者简介:倪沁颜(1977—),女,工程师,从事分析化学工作,Email:229809465@qq.com摘要:花生衣中含有儿茶素等多种化学成分,具有抗氧化、抑菌以及防止血小板减少等药用活性,在食品、化妆品和医药等行业具有广泛的用途。本文探讨了儿茶素的提取工艺和纯化方法。结果表明从花生衣中提取儿茶素较适宜提取溶剂为甲醇,适宜提取时间为2h,较适宜提取温度为50℃,料液比最佳为1:15。综合采用溶剂萃取和反相硅胶RP-C18、凝胶LH-20和正相硅胶等层析方法,可以获得儿茶素纯品,并根据核磁共振波谱数据对儿茶素的结构进行鉴定,从中获得一条从花生衣中提取儿茶素的较实用方法,可为花生衣的深度开发提供参考。关键词:花生衣;儿茶素;提取;纯化中图分类号:O657.7文献标识码:A文章编号:1009-8143(2023)01-0012-05Doi:10.3969/j.issn.1009-8143.2023.01.03ExtractionandpurificationofcatechinfrompeanutcoatNiQin-yan(FujianInstituteofTestingTechnology,Fuzhou,Fujian350003,China)Abstract:Thepeanutcoatcontainscatechinsandotherchemicalcomponents.Itpossessesmedicinalactivitiessuchasanti-oxidation,bacteriostasis,andthepreventionofthrombocytopenia.Itiswidelyusedinfood,cosmetics,medicine,andotherindustries.Basedonthestructuralcharacteristicsofcatechinchemicalmolecules,thetechniqueofextractionandpurifica⁃tionofcatechinfrompeanutwereexploredinthispaper.Theresultsindicatedthattheoptimumsolventforextractingcate⁃chinfrompeanutcoatwasmethanol,theoptimumextractiontimewas2h,theoptimumextractiontemperaturewas50℃,andtheoptimumratioofmaterialtoliquidwas1:15.Thepurecatechincouldbeobtainedbysolventextraction,reversed-phasesilicagelRP-C18,SephadexLH-20andnormalphasesilicagelcolumnchromatography.Thispaperprovidesaprac⁃ticalmethodtoextractcatechinfrompeanutcoat,whichwouldprovideareferenceforthein-depthdevelopmentofpeanutcoat.Keywords:Peanutcoat;Catechin;Extraction;Purification花生衣是花生(Arachishypogaea)外表面的红棕色种皮,常作为传统中药,主治止血、散瘀、消肿,用于血友病、血小板...