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| Evaluation of tomato maturity by electronic nose | ||||||||||||
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| 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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