气相色谱-质谱法测定普洱茶挥发油的化学成分  

Determination on the Chemical Composition of Volatile Oil in Pu'er Tea by GC-MS

作　　者：倪倩[1] 佟玲[2] 李文博[3] 高钧[2] 王强[1] 

机构地区：[1]中国药科大学中药学院,江苏南京210009 [2]天津天士力制药股份有限公司研究院,天津300402 [3]中国药科大学药学院,江苏南京210009

出　　处：《安徽农业科学》2011年第12期7072-7073,共2页Journal of Anhui Agricultural Sciences

摘　　要：[目的]为普洱茶产品质量标准的制定提供依据。[方法]采用水蒸气回流法提取普洱茶中的挥发油,并对其进行气相色谱–质谱分析,采用面积归一化法对各组分进行定量。[结果]从普洱茶挥发油中共鉴定出50种化合物,其主要成分为n-棕榈酸,其次为(Z,Z)-9,12-十八碳二烯酸、顺式芳樟醇、植醇、十四烷、1,2,3-三甲氧基苯、1,2-二甲氧基苯、己醛、二十一烷和苯甲醛,以上成分占挥发油相对含量的91.43%。[结论]普洱茶挥发油中主要含醇类、酸类、醛类、烃类、酯类、杂氧类、芳香族、杂环类等7类化合物。[Objective] The purpose of the research was to supply basis for formulating product quality standard for Pu＇er tea.[Method] The volatile oil was extracted from Pu＇er tea by vapor reflux method and analyzed by GC-MS,and then its components were analyzed quantitatively by area normalization method.[Result] There were 50 kinds of compounds identified from volatile oil in Pu＇er tea,its major component was n-hexadecanoic acid,its secondary components were（Z,Z）-9,12-octadecadienoic acid,cis-linalool,phytol,tetradecane,1,2,3-trimethoxy benzene,1,2-dimethoxy benzene,hexanal,heneicosane and benzaldehyde and the above components accounted for 91.43% in relative content of volatile oil in Pu＇er tea.[Conclusion] The volatile oil in Pu＇er tea mainly contained 7 kinds of compounds,such as alcohols,acids,aldehydes,hydrocarbon,esters,hetero-oxy compounds,aromatic series and heterocyclic compounds.

关 键 词：气相色谱-质谱法 普洱茶 挥发油 化学成分 

分 类 号：S571.1[农业科学—茶叶生产加工]