不同海拔高度信阳毛尖茶香气成分的GC-MS分析  

Analysis of Xinyangmaojian Tea Aroma Components from Different Altitude by GC-MS

作　　者：孙慕芳[1] 郭桂义[1] 张莉[2] 齐红志[2] 

机构地区：[1]信阳农林学院茶学系/河南省高校信阳毛尖茶产业工程技术研究中心/信阳市茶叶加工与检测工程技术研究中心,河南信阳464000 [2]河南省农业科学院农业经济与信息研究所,河南郑州450002

出　　处：《河南农业科学》2014年第5期181-185,共5页Journal of Henan Agricultural Sciences

基　　金：河南省科技厅科技攻关项目(112102110142);河南省教育厅自然科学研究项目(2010C210008);河南省教育厅科学技术研究重点项目(14A210022);信阳农林学院校级青年科学基金项目(200806)

摘　　要：为了解不同海拔高度信阳毛尖的香气成分,以白龙潭(高山,海拔670m)和震雷山(低山,海拔200m)信阳群体种为原料,按手工制法加工成信阳毛尖茶,采用气相色谱-质谱法测定茶叶香气成分。结果表明,2种茶叶均以醇类物质为主,但存在明显差别:①高山茶香气物质种类、含量都明显高于低山茶。高山茶检测出35种芳香物质,分属醇类、酯类、醛类、碳氢化合物、酮类及其他化合物6类,含量8.801%;低山茶只有18种芳香物质,分属醇类、酯类、醛类、碳氢化合物4类,含量3.506%;②高山茶萜稀醇类含量更高、种类更丰富。高山茶含有橙花叔醇、香叶醇、芳樟醇、顺-氧化芳樟醇、反-氧化芳樟醇、顺-橙花醇、α-萜品醇7种,含量2.705%,低山茶只含有反-香叶醇、芳樟醇、α-萜品醇3种,含量0.825%。③与高山茶相比,低山茶含有更高比例的具有木香的芳香物质。高山茶检测出具有松木、蒿草等气味的古巴烯、α-荜澄茄油烯、α-法尼烯、3-蒈烯,总量为0.697%,占芳香物质总量的7.92%;低山茶中检测出有木香的丁香烯、β-丁香烯、α-荜澄茄油烯,总量为0.763%,占芳香物质总量的21.76%。In order to understand the Xinyangmaojian tea aroma components of different altitude tea area,tea leaves were used as raw materials from Bailongtan（mountain,with altitude of 670 m） and Zhenleishan（hill,with altitude of 200 m）,and according to the manual processing into Xinyangrnaojian tea,tea aroma composition was measured by gaschromatography-mass spectrometry.The results showed that the two kinds of tea mainly contained alcohols,but there were obvious differences.The aroma kinds,content of high mountain tea were significantly higher than those of the low hill tea.High mountain tea had 35 aromatic substances,belonging to six kinds of alcohols,esters,aldehydes,ketones,hydrocarbons and others,with concent of 8.801%.Low hill tea had only 18 aromatic substances,belonging to four types of alcohols,esters,aldehydes and hydrocarbons,with content of 3.506 %.Compared with the low hill tea,tea terpenes alcohol type and content of high mountain tea were more rich.High mountain tea contained seven types of nerol,geraniol,linalool,trans geraniol etc,with the relative content of 2.705 %,low hill tea contained only trans geraniol,linalool and alpha terpineol,with content of 0.825 %.Compared with high mountain tea,low hill tea contained a higher proportion of aromatic substances with woody fragrance.High mountain tea had copaene,α-cadibene,alpha farnesene,and 3-carene with pine and grass smelling,amounting to 0.697% and accounting for 7.92% of the total aromatic substances.Low hill tea contained caryophyllene,β-caryophyllene,and α-cadibene,a total of 0.763 %,accounting for 21.76 % of the total aromatic substances.

关 键 词：信阳毛尖茶 海拔 香气成分 气相色谱-质谱法 

分 类 号：S571.1[农业科学—茶叶生产加工]