首页|基于顶空搅拌子吸附-热脱附-气相色谱-质谱联用技术的8种香型凤凰单丛茶香气分析研究

基于顶空搅拌子吸附-热脱附-气相色谱-质谱联用技术的8种香型凤凰单丛茶香气分析研究

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为探究8种单丛茶的香气组分差异及其对香型形成的影响,采用顶空搅拌子吸附-热脱附-气相色谱-质谱联用法(HS-SBSE-TDU-GC-MS)对蜜兰香、芝兰香、杏仁香、鸭屎香、肉桂香、夜来香、黄枝香和老仙翁单丛的香气成分进行了分析,采用最小二乘判别分析从69个香气化合物中筛选出了 19个关键差异性成分.基于差异性关键成分做主成分分析,结果显示前3个主成分可以对8个香型凤凰单丛茶的香气变量信息进行有效解释.各个香型主要香气化合物风味特征与感官审评结果具有一致性.
Analysis of Aroma Components in 8 Kinds of Fenghuang Dancong Tea Using HS-SBSE-TDU-GC-MS
To investigate the differences in aroma components and their effects on the formation of aroma characteristics,the volatile components of eight kinds of Dancong teas,including Milan,Zhilan,Xingren,Yashi,Rougui,Yelaixiang,Huangzhi and Laoxianweng,were determined by headspace-stir bar sportive extraction-thermal desorption-gas chromatography-mass spectrometry(HS-SBSE-TDU-GC-MS).Least squares discriminant analysis(PLS-DA)was used to screen 19 key differential components from 69 aroma compounds.Based on principal component analysis(PCA)of differential key components,the results show that the first three principal components can effectively explained the variability in aroma characteristics of Dancong tea.The main aroma compounds of each aroma type have consistent flavor characteristics and sensory evaluation results.

Dancong teaaroma componentsheadspace-stir bar sportive extractiongas chromatography-mass spectrometryprincipal components analysis

张琳、叶汉钟、陈红平、张颖彬

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中国农业科学院茶叶研究所,浙江杭州 310008

农业农村部茶叶质量安全控制重点实验室,浙江杭州 310008

潮州市天羽茶业有限公司,广东潮州 515638

单丛茶 香气成分 顶空搅拌子吸附 气相色谱-质谱联用法 主成分分析

浙江省"三农九方"科技协作计划中国农业科学院创新团队茶叶质量与风险评估团队项目国家现代农业产业技术体系

2024SNJF030CAAS-ASTIP-2016-TRICAASCARS-19

2024

中国茶叶
中国农业科学院茶叶研究所

中国茶叶

影响因子:0.288
ISSN:1000-3150
年,卷(期):2024.46(10)