the total flavanone of longan seed extraction and the identification by ethanol论文

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1、TheTotalFlavanoneofLonganSeedExtractionandtheIdentificationbyEthanol论文.freelakefulluseoftheresourcesoflonganseedandavoidlonganseedinedusingspectrophotometry.ResultsUsingthismethod,thecontentsofthetotalflavanoneoflonganseedg/mlandtherecoveryrateethodprovidesapurelyphysicalandn

2、on-contaminativeprocessfortheonnamesforthefruitoflonganasfollou、Asianlitchichinesis、Sichuanbillardball、Pureblackhorsebead、Yanluan、Honeyspleen、Jiaolei、edicineedicine,longanhasmanycurativeeffectsontheillnessofedicine.Longannucleolusescanalsopreventpain,hemorrhage,hernia,mangean

3、dskindiseases［2,3］.Atthesametime,inlongannucleoluses,somekindsofalkaloidandfattyoilarealsocontained.Solongancanbepoedicineinfamily,forithasfavorableeffectonstanchingandmakingtheAppropriatesLostArticles.Longannucleolusesoccupy17%ofthegrossakefulluseofitsnaturalresources,longan

4、nucleolusesmustbestudiedfurther.Atpresent,therehasbeenlittlereportabouttotalflavanoneinlongannucleoluses.Inthispaper,thestudyonlongannucleolusesisprovided.1Instrumentsandreagents1.1InstrumentsKQ5200DBnumericalcontrolultrasonicentlimitedpany);UV-755Bultravioletvisiblespectroph

5、otometer(Shanghaianalysisinstrumentmainplant);ZF-Ithreeusestheultravioletanalyzer(Shanghaitoattendtovillagephotoelectricityinstrumentplant);SHB-IIIultifunctionvacuumpump(Zhengzhougreatentfactory).1.2Reagents95%Ethylalcohol;SodiumnitriteAR;AluminiumnitrateAR;SodiumhydroxideAR;

6、AluminumtrichlorideAR;HydrochloricacidAR;AmmoniaacetateAR;MethylalcoholAR;MagnesiumpoalbutylalcoholAR;Standardrutin(Chinesedrugsbiologicalpreparationsexamination);HydrogenperoxidesolutionAR;FerroussulfateAR;SalicylicacidAR.LongansnucleusesoriginatesfromtheGuangxiBaise.2Method

7、sandresult2.1Totalflavanoneingredientsesl95%alcohol.Thereagentsinatedunderloevolumelapproximately,andtransferredtothe25mlmeasuringflask,delutedinationInordertodetectthecontentsoftotalflavanonesintheseedsoflongan,thealuminumionreagentethodofspectrophotometry.2.3Determinationof

8、totalflavanone2.3.1Theoptimuml5%NaNO2and0.3ml10%Al(NO3)3ed.Theoptimu