气相色谱-质谱指纹图谱结合化学计量学方法分析不同产地艾叶挥发油的差异-豆柴文库

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气相色谱-质谱指纹图谱结合化学计量学方法分析不同产地艾叶挥发油的差异
Title:AnalysisofDifferencesinVolatileOilsofArtemisiaargyifromDifferentOriginsUsingGasChromatography-MassSpectrometryFingerprintsCombinedwithChemometrics
Abstract：
Artemisiaargyi,commonlyknownasAiYe,hasbeenwidelyusedintraditionalChinesemedicineforitsnumeroushealthbenefits.However,thequalityandefficacyofAiYecanvarydependingonitsgeographicalorigin.Inthisstudy,weaimedtoanalyzethedifferencesinvolatileoilsofAiYefromdifferentoriginsusingacombinationofgaschromatography-massspectrometry(GC-MS)fingerprintsandchemometrics.
Introduction：
ArtemisiaargyiisatraditionalChinesemedicinalherbthatcontainsvariousbioactivecompoundssuchasvolatileoils,flavonoids,andterpenoids,whichcontributetoitspharmacologicalactivities.ThevolatileoilsofAiYe,inparticular,areknowntopossessessentialtherapeuticproperties.However,thecompositionandcontentofvolatileoilscanvarysignificantlydependingonfactorssuchasgeographicalorigin,climate,soilconditions,andcultivationmethods.Therefore,itisessentialtoanalyzethedifferencesinvolatileoilsfromdifferentoriginstoensurethequalityandconsistencyofAiYe.
Methodology：
Inthisstudy,volatileoilswereextractedfromAiYesamplescollectedfromdifferentorigins.Theextractionmethodusedwassteamdistillation,whichisacommonlyemployedtechniqueforisolatingvolatilecompoundsfromplantmaterials.TheextractedoilswerethenanalyzedusingGC-MS,whichisapowerfulanalyticaltechniquethatallowsidentificationandquantificationofindividualcomponentspresentinacomplexmixture.TheresultingGC-MSdatawerepreprocessedtoobtainfingerprintsrepresentingthevolatileoilcompositionofeachsample.
ResultsandDiscussion：
TheGC-MSfingerprintingdataofvolatileoilsfromdifferentoriginsweresubjectedtochemometricanalysis,includingprincipalcomponentanalysis(PCA)andhierarchicalclusteranalysis(HCA).PCAisadimensionalityreductiontechniquethatcanrevealthemainsourcesofvariationamongsamples,whileHCAprovidesavisualrepresentationofthesimilaritiesanddifferencesbetweensamples.Theresultsofthechemometricanalysisrevealed