摘要
In this study,the volatile compounds in four kinds of Jinmudan Oolong tea were extracted and analyzed by simultaneous steam distillation and extraction(SDE) and gas chromatography-mass spectrometry(GC-MS),respectively.The relative contents of the chemical constituents in the volatile components were quantified by peak area normalization and NIST database.A total of 93 volatile components were identified,46 for sample 1,56 for sample 2,45 for sample 3 and 30 for sample 4.Alcohols and esters were the most abundant volatiles in Jinmudan Oolong tea.Palmitic acid,nerolidol,2-phenylethanol,phytol,cis-5-ethenyltetrahydro-.α,α-5-trimethyl-2-furanmethanol,2,2,6-trimethyl-6-ethenyltetrahydro-2h-pyran-3-ol,a-farnesene,eicosane,hexadecane,indole,β-phenethyl hexanoate,β-phenethyl hexanoate,methyl palmitate,benzoic acid,2-phenylethyl ester,tetrahydro-6-(cis-2-pentenyl)-2h-pyran-2-one and cis-jasmone were in all of the samples.Nerolidol was shown to be the aroma components with the highest content in Jinmudan Oolong tea,which accounted for 26.61%,36.89%,36.89%and 36.89%.
In this study,the volatile compounds in four kinds of Jinmudan Oolong tea were extracted and analyzed by simultaneous steam distillation and extraction （SDE） and gas chromatography-mass spectrometry （GC-MS）,respectively.The relative contents of the chemical constituents in the volatile components were quantified by peak area normalization and NIST database.A total of 93 volatile components were identified,46 for sample 1,56 for sample 2,45 for sample 3 and 30 for sample 4.Alcohols and esters were the most abundant volatiles in Jinmudan Oolong tea.Palmitic acid,nerolidol,2-phenylethanol,phytol,cis-5-ethenyltetrahydro-,α,α-5-trimethyl-2-furanmethanol,2,2,6-trimethyl-6-ethenyltetrahydro-2h-pyran-3-ol,a-farnesene,eicosane,hexadecane,indole,β-phenethyl hexanoate,β-phenethyl hexanoate,methyl palmitate,benzoic acid,2-phenylethyl ester,tetrahydro-6-（cis-2-pentenyl）-2h-pyran-2-one and cis-jasmone were in all of the samples.Nerolidol was shown to be the aroma components with the highest content in Jinmudan Oolong tea,which accounted for 26.61％,36.89％,36.89％ and 36.89％.
出处
《茶叶》
2013年第4期401-405,共5页
Journal of Tea
基金
supported by the rural science and technology innovation fund project of technology division from Ningbo city science and technology bureau (No.201001C8002011,201002C1011003)
