顶空固相微萃取-气质联用结合主成分分析法对太平猴魁茶香气成分的研究  

Studies on aroma components in Taiping Houkui tea by HS-SPME-GC-MS coupled with principal component analysis

作　　者：杨停[1] 雷攀登[1,2] 周汉琛 丁勇[1,2] 崔朋[3] 程满环[3] 黄建琴 

机构地区：[1]安徽省农业科学院茶叶研究所,安徽黄山245000 [2]黄山茶产业技术研究院,安徽黄山245600 [3]黄山学院,安徽黄山245041

出　　处：《食品工业科技》2017年第10期49-53,57,共6页Science and Technology of Food Industry

基　　金：国家现代农业产业技术体系建设专项(CARS-23);安徽省农业科学院名优茶现代化加工关键技术与设备科技创新团队(12C0803);安徽省科技攻关计划(1501031100)

摘　　要：香气是影响茶叶品质的重要因子之一,太平猴魁茶是历史名茶,其独特的香气受到消费者青睐。本研究利用顶空固相微萃取-气质联用结合主成分分析法对太平猴魁茶的香气成分进行研究。结果表明:从太平猴魁茶样品中共检测到51种挥发性成分,3个不同地域的7个太平猴魁茶样品香气成分在组成及含量上存在一定的差异,但它们的主要香气物质是相似的,主要包括13种醇类物质、8种烯类物质、6种醛类、3种酮类物质、7种酯类物质、4种芳香烃类物质和8种烷烃类物质;采用主成分分析法,鉴定出太平猴魁茶特征香气成分主要有29种,包括7种醇类成分,8种烯类成分,3种醛类成分,5种烷烃类成分,2种酮类成分,3种酯类成分和1种芳香烃类成分。Aroma is a major factor influence tea quality.Taiping Houkui tea is famous world-wide which rest on its unique flavor. Aroma components of Taiping Houkui tea were analyzed using solid phase microextraction followed by gas chromatography-mass spectrometry combined with principal component analysis. Results showed that a total of 51 compounds were identified from the tea samples major including 13 kinds of alcohols ,6 kinds of aldehydes, 8 kinds of alkene, 3 kinds of ketones,7 kinds of esters,4 kinds of aromatic hydrocarbons and 8 kinds of alkanes.The varieties of the aromatic constituents behaved similarly in seven commercial Taiping Houkui tea samples, but the contents behaved differently in different regions. Principle component analysis showed that 7 kinds of alcohols, 8 kinds of alkene, 3 kinds of aldehydes,5 kinds of alkanes,2 kinds of ketones,3 kinds of esters and one kind of aromatic hydrocarbons made a major contribution to Taiping Houkui tea.

关 键 词：太平猴魁茶 气相色谱一质谱联用 香气成分 主成分分析 

分 类 号：TS272.7[农业科学—茶叶生产加工]