不同级别云南工夫红茶香气成分比较分析  

Comparative analysis of aroma compositions in different-grades Yunnan Congou black tea

作　　者：任洪涛[1] 周斌[1] 夏凯国[1] 秦太峰[1] 张劲松[1] 

机构地区：[1]云南省香料研究开发中心,昆明650051

出　　处：《南方农业学报》2012年第4期489-492,共4页Journal of Southern Agriculture

基　　金：云南省应用基础研究面上项目(2010ZC086)

摘　　要：【目的】分析云南工夫红茶香气主要化学物质组成,比较不同级别云南工夫红茶香气成分的差异,为提高云南红茶品质和指导生产实践提供理论依据。【方法】采用同时蒸馏萃取法富集云南工夫红茶香气物质,利用气相色谱—质谱法(GC-MS)对不同级别的云南红茶样品进行香气成分对比分析。【结果】不同级别的云南工夫红茶香气成分组成大致相同,但含量差异较大。其中,芳樟醇、芳樟醇氧化物、α-松油醇和香叶醇等在高级别红茶中的含量较低级别红茶的高;而青叶醛、苯甲醛、苯乙醛等则在低级别红茶中含量较高。【结论】级别越高的云南工夫红茶其香气品质越好,但不同级别的云南工夫红茶均具有滇红工夫茶香气馥郁、香高味浓的风格特征。[Objective]Major aroma compositions of different-grades Yunnan Congou black tea were comparatively analyzed and their quality was assayed in order to provide guidance for enhancing Congou black tea production. [Method] Aroma substance was enriched using same distillation extract method and aroma compositions were analyzed using SDE/ GC-MS in different-grades Yunnan Congou black tea samples comparatively. [Result]The results showed that different- grade Yunnan Congou black tea had nearly the same aroma compositions, but their contents varied a lot. The linalool, linalool oxide, α-Terpineol and geraniol contents were higher in superior Yunnan Congou black tea compared to those presenting in inferior one. However, inferior Yunnan black tea had higher leafaldehyde, benzaldehyde and benzeneac- etaldehyde content. [ Conclusion] Higher-graded Yunnan Congou black tea had good fragrance quality and all different- graded Congou black teas presented strong fragrance, and high aroma and strong taste characteristics of Diangong time tea.

关 键 词：云南红茶 香气成分 级别 蒸馏萃取 气相色谱-质谱分析 

分 类 号：TS272.5[农业科学—茶叶生产加工]