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1、[摘要]:0的:研究人孔树脂分离纯化甘草总黄酮的最佳树脂和最冇工艺,为甘草总黄酮的工业化生产提供实验依据。方法:分别对DS-401、D-101、AB-8、HPD-100四种大孔树脂进行静态吸附、静态解吸实验筛选用于甘草总黄酮分离的最佳树脂,采用紫外分光光度法测定总黄酮质量浓度,以总黄酮吸附率、洗脱率、收率、纯度等指标评价AB-8人孔树脂分离纯化甘草总黄酮工艺种上样量、上样液质量浓度、吸附流速、洗脱剂乙醇体积分数极其用量对吸附和解吸效果的影响,从而确定最佳工艺。结果:AB-8型大孔树脂为分离甘草黄酮类组分最佳树脂,其分离的最佳工艺为:总黄酮浓度为9.20mg*mL
2、的样液,吸附流述为2ml*mirf,洗脱剂50%乙醇用量为4倍树脂体积,利用该工艺精制后的干草总黄酮纯度和收率分别为74.45%、35.31%。结论:获得的样品总黄酮纯度达70%以上,但收率较低,综合各方方面因素,该工艺简单可。[关键字]甘草;总黄酮;分离纯化;大孔树脂AbstractAbstract:Objective:Tostudytheoptimummacroporousresinseparationandpurificationoftotalflavonoidsfromlicoriceresinandtheprocess,toprovidetheexpe
3、rimentalbasisfortheindustrialproductionofflavonoids.Methods:DS-401,D-101,AB-8,HPD-100fourkindsofmacroporousresinbystaticadsorption,staticdesorptionexperimentscreeningforlicoriceflavonoidsisolatedoptimalresin,totalflavonoidswasdeterminedbyUVspectrophotometry,massconcentration,withtota
4、lflavonoidsadsorption,elutionrate,yield,purityandevaluationAB-8macroporousresinseparationandpurificationoftotalflavonoidsofGlycyrrhizaprocessforthesamplevolume,samplesolutionconcentration,thevelocityofadsorption,elutionvolumefractionofethanolextremelydosageontheadsorptionanddesorptio
5、neffect,soastodeterminetheoptimumprocess.Result:theAB-8macroporousresinforseparationoflicoriceflavonoidcomponentsthebestresin,theoptimumprocessfortheseparationofthetotalflavonoidconcentrationofsamplesolution:9.20mg•mL-1,adsorptionvelocityis2ml*min-1,50%ethanolelutionagentamountwas4ti
6、mesofresinvolume,thepurificationprocessoftotalflavonoidspurityofhayandtheyieldwere74.45%,35.31%.Conclusion:thetotalflavoneofsamplepuritywasmorethan70%,buttheyieldislow,thepartiestothecomprehensivefactors,theprocessissimpleandcanbe.keywordlicorice;flavonoids;separationandpurification;
7、macroporousresin引言甘草(RadixGlycyrrhiza)为豆科植物的干燥根及根茎[11。甘草含冇多种化学成分,主要成分有甘草酸、甘草黄酮类等。甘草黄酮类化合物具有抗肿瘤、抗心律失常、抗溃疡、保肝、解痉、抗菌、抗炎和抗变态反应、抗氧化、酶抑制、调血脂、镇痛、镇咳祛痰等多种生物活性I17'221,被广泛应用于医药、保健及美容等行业。传统的总黄酮分离纯化方法冇萃取法、柱层析法、铅盐沉淀法等。随着社会的发展,大孔树脂吸附法成为近年来的较新分离纯化方法,与传统方法相比,采用大孔树脂分离提纯甘草总黄酮具有吸附性好、效率高、再生简便、成本低、洗脱剂毒性小使
8、用周期长等优点,被广泛用