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ID:16277345
大小:871.00 KB
页数:9页
时间:2018-08-08
《脱脂纯牛奶感官评价与电子鼻分析》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、脱脂纯牛奶感官评价与电子鼻分析相关性研究迟雪露,宋铮,KhalmetovMuratzhan,艾娜丝*,孙宝国(北京工商大学北京食品营养与人类健康高精尖创新中心,北京市食品添加剂工程技术研究中心,北京市食品风味化学重点实验室,北京工商大学,北京100048)摘要:选取4种市售不同品牌的UHT脱脂纯牛奶作为研究对象,通过感官描述性分析和电子鼻技术对其风味属性进行评价。采用主成分分析(PCA)和聚类分析(CA)结合偏最小二乘回归(PLSR)法将电子鼻传感器性能和感官属性进行相关性分析。感官评价结果显示样品奶油味及脂质感评分均较低,A样品奶腥味明显,影响整体风味
2、;对样品进行PCA分析,结果表明PC1和PC2的贡献率分别为66.87%和33.13%,区分效果较好;基于感官属性和传感器响应值的PLSR分析建立的相关性模型,其中PC1方差贡献率为49%,PC2为34%,能够很好地解释感官属性和传感器响应值之间的相关性,反映脱脂纯牛奶样品的整体信息。关键词:UHT脱脂纯牛奶;感官评价;电子鼻技术;相关性中图分类号:TS252.5文献标识码:AStudyonCorrelationbetweenSensoryEvaluationandElectronicNoseSensorsAnalysisofSkimmedMilkChi
3、Xue-lu,SongZheng,KhalmetovMuratzhan,AiNa-si*,SunBao-guo(BeijingAdvancedInnovationCenterforFoodNutritionandHumanHealth,BeijingLaboratoryforFoodQualityandSafety,BeijingKeyLaboratoryofFlavorChemistry,BeijingTechnologyandBusinessUniversity,Beijing100048,China)Abstract:Fourkindsofcomm
4、erciallyultra-high-temperatureskimmedmilkwereusdedinthisstudytoevaluatetheflavorattributesbysensorydescriptiveanalysisandelectronicnosetechnique.Principalcomponentanalysis(PCA),clusteranalysis(CA)andpartialleastsquaresregression(PLSR)wereusedtoanalyzethecorrelationbetweenelectron
5、icnosesensorperformanceandsensoryattributes.Theresultsshowedthatcreamyandfatattributeshadlowsensoryscore,obviousfreshsmellhasaffectedtheoverallflavorofSampleA.PCAresultshowedthatthecontributionrateofPC1was66.87%andthatofPC2was33.13%,Theelectronicnosecoulddistinguishfoursampleswel
6、l.ThecorrelationmodelofsensoryattributesandsensorresponsevaluesbasedonPLSRanalysis,thePC1variancecontributionratewas49%andthatofPC2was34%.Combinedthesetwomethodscanmakeupthedefectsofsensoryevaluationandintelligencesensorytechnologyandavailabletoprovideareferenceofimprovingtheflav
7、orofUHTskimmedmilk.Keywords:UHTskimmedmilk;Sensoryevaluation;Electronicnose;CorrelationFoundationitem:SupportedbytheNationalKeyR&DProgram(2016YFD0401100)andtheResearchFoundationforYouthScholarsofBeijingTechnologyandBusinessUniversity(QNJJ2016-16)基金项目:“十三五”国家重点研发计划重点专项(2016YFD0401
8、100);北京工商大学青年教师科研启动基金资助项目(QNJJ2016-16)作者
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