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Evaluation of tomato maturity by electronic nose
閱讀:4297發(fā)布時間:2008-06-19
提 供 商: | 北京盈盛恒泰科技有限責任公司 | 資料大小: | 0K |
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詳細介紹
overthepastyears,electronicnosee-nosetechnologyopenedhasenhancedthepossibilityofexploitinginformationonbehavioraromatoassessfruitripeningstage.theob-jectiveinthisstudywastoevaluatethecapacityofelectronicnosetomonitorthechangeinvolatileproductionofripenessstatesfortomato,usingaspeci?celectronicnosedevicewith10differentmetaloxidesensorsportablee-nose,pen2.principalcomponentanalysispcaandlineardiscriminantanalysisldawereusedtoinvestigatewhethertheelectronicnosewasabletodistinguishingamongdifferentripenessstatesunripe,half-ripe,full-ripeandover-ripe.theloadingsanalysiswasusedtoidentifythesensorsresponsiblefordiscriminationinthecurrentpattern?le.theresultsprovethattheelectronicnosepen2coulddifferentiateamongtheripenessstatesoftomato.theelectronicnosewasabletodetectaclearerdifferenceinvolatilepro?leoftomatowhenusingldaanalysisthanwhenusingpcaanalysis.usingldaanalysis,itwaspossibletodifferentiateandtoclassifythedifferenttomatomaturitystates,andthismethodwasabletoclassify100%ofthetotalsamplesineachrespectivegroup.somesensorsine-nosehavethehighestin?uenceinthecurrentpattern?leforelectronicnosepen2.asubsetofafewsensorsine-nosecanbechosentoexplainallthevariance.thisresultcouldbeusedinfurtherstudiestooptimizethenumberofsensors.
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