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时间:2020-04-19
《高效率高纯度绿原酸制备工艺研究.pdf》由会员上传分享,免费在线阅读,更多相关内容在应用文档-天天文库。
1、天然产物研究与开发NatProdResDev2014,26:1503.1509文章编号:1001-6880{2014}9—1503-07高效率高纯度绿原酸制备工艺研究陈媛,唐铁鑫,陈金龙,蒋林中山大学药学院生药与天然药物化学实验室,广州510006摘要:建立从山银花中制备绿原酸标准品的方法,并提高绿原酸产率。通过正交试验优化传统水提法和碱水冷提法工艺,并对D101大孔树脂纯化条件、乙酸乙酯萃取次数、结晶溶剂进行优化。通过研究,最佳提取条件为:提取溶剂pH=10的碱水,提取时间1h,料液比1:30,提取率为7.2%;D101大孔树脂洗脱溶剂:10%乙醇洗脱液纯度最高
2、,30%乙醇洗脱液得率最高;最佳萃取次数5次;最佳结晶溶剂:水饱和乙酸乙酯。本研究通过创新的提取和纯化条件,得到纯度98.7%的绿原酸,得率18.4ng,纯度和得率都高于现有文献记载,且常温快速提取,能耗明显下降,适用于工业规模高纯度绿原酸生产。关键词:绿原酸;山银花;碱水;D101大孔树脂;结晶中图分类号:11284.2文献标识码:APreparationofHighlyPureChlorogenicAcidfromLoniceraconfusaCHENYuan’,TANGTie—xin,CHENJin—long,JIANGLin。&hodofPharmaceu
3、ticalSciences,SunYat-senUniversity,Guangzhou510006,ChinaAbstract:ThisworkaimedtoestablishalleficientmethodforthepreparationofhighlypurecMomgenicacidfromceraconfusa.Twoextractionmethods,conventionalwaterextractionandalkalinewaterextracdonatambienttemperature,wereoptimizedbyorthogonalex
4、perimentaldesign.ThepurificationprocessesusingD101macmpomusrosin.ethylacetateliquid-liquidextraction,solventcrystallizationwerealsooptimized.Maximumextractionyieldof7.2%chlorogenicacidwagachievedbyusingalkalinewateratpH=10assolvent,extractiontimeof1h,andsolid—to—liquidratioof1:30.Asto
5、theeluentofDIO1macroperousresin,eluateofbestpurityWasachievedbyusing10%aqueousethanol,andehateofhighestchlorogenieacidcontentWasachievedbyusing30%aqueousethano1.ItWasoptimizedtoperformliquid-liquidextractionfor5times.Ethylacetatesaturatedwithwaterwasthebestsolventforcrystallization.Wi
6、ththedevelopedCX-tractionandpurificationmethods.chlomgeuicacidatthepurityof98.7%withayieldof1.84%WaSachieved.Thepu-rityandyieldwe/ebetterthanthoserecordedinotherreportedmethods.Moreover,theextractionWasperformedatamhi-enttemperatureina8hortperiodoftimeandsignificantlyreducedtheenergyc
7、onsumption.Hence。itWassuitableforlarge-scaleindustrialproduction.Keywords:cldorogenicacid;Loniceraconfusa;alkalinewaterextraction;D101macroporousresin;crystallization山银花,忍冬科植物山银花Lonicaraconfusa《中国药典》,均将“金银花”与“山银花”分列为两DC.、红腺忍冬LonicerahypoglaucaMiq.、毛柱忍冬种中药材ll】。两者价格也有很大差异,作为提取绿Lonicerad
8、asyst
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