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| Discrimination of storage shelf-life for mandarin | ||||||||||||
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| overthepastyears,electronicnosetechnologyopenedthepossibilitytoexploitinformationonaromaattributetoassessfruitripeninstageduringstorage.theob-jectiveinthisstudywastoevaluatethecapacityofelectronicnoseinmonitoringthechangeinvolatiproductionofmandarinduringdifferentstoragetreatments,andstorageshelf-lifeofmandarinwasevaluatedbymeasuringthechangeivolatileproductionofmandarinusingelectronicnosedevicepen2.bycomparing,storageshelf-lifeofmandarinwasbettdistinguishedusinglineardiscriminantanalysisldathanprincipalcomponentanalysispca.pcaandldaanalysiswerefcienttoclassifymandarinwiththesamestoragetimeinitsrespectivegroups;butthemethodsarenotefcienttoseparatethmandarinsbydifferentstoragetimes.thecorrelationbetweenthemeasuredandpredictedvaluesoffruitqualityattributesuchasolublesolidcontent,acidityandcompressionforceshowspoortoreasonablepredictionperformancebymeansofelectronicnossignals.theresultsprovethatsensors2,7and9intheelectronicnosepen2formandarinhaveahigherinuenceinthecurrentpatterle.hence,nearlyasubsetoffewsensorscanbechosentoexplainallthevariance.thisresultcouldbeusedinfurtherstudiestooptimizthenumberofsensorsandndbetterperformance. |
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