食品科学 ›› 2020, Vol. 41 ›› Issue (20): 191-197.doi: 10.7506/spkx1002-6630-20190920-252

• 成分分析 • 上一篇    下一篇

六堡茶挥发性成分中关键香气成分分析

马士成,王梦琪,刘春梅,马婉君,朱荫,林智,吕海鹏   

  1. (1.梧州市茶产业发展服务中心,广西 梧州 543000;2.农业农村部茶树生物学与资源利用重点实验室,中国农业科学院茶叶研究所,浙江 杭州 310008;3.中国农业科学院研究生院,北京 100081;4.广西梧州六堡茶股份有限公司,广西 梧州 543000)
  • 出版日期:2020-10-25 发布日期:2020-10-23
  • 基金资助:
    现代农业产业技术体系建设专项(CARS-23);广西科技计划项目(桂科转14125003-2-19;桂科AB1850018); 梧州市科学研究与技术开发计划项目(201501024)

Analysis of Volatile Composition and Key Aroma Compounds of Liupao Tea

MA Shicheng, WANG Mengqi, LIU Chunmei, MA Wanjun, ZHU Yin, LIN Zhi, LÜ Haipeng   

  1. (1. Wuzhou Tea Industry Development Service Center, Wuzhou 543000, China;2. Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture and Rural Affairs, Tea Research Institute, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China;3. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China; 4. Guangxi Wuzhou Liupao Tea Co. Ltd., Wuzhou 543000, China)
  • Online:2020-10-25 Published:2020-10-23

摘要: 采用顶空固相微萃取-气相色谱-质谱联用技术结合相对气味活性值(relative odor activity value,ROAV)、气相色谱-嗅闻-质谱(gas chromatography-olfactometry-mass spectrometry,GC-O-MS)联用法对一批次代表性六堡茶中的挥发性成分进行分析。结果表明,此批样品中鉴定出81 个共有挥发性化合物,根据其化学结构的差异可分为醇类(16 种)、醛类(9 种)、酮类(12 种)、酯类(6 种)、碳氢类(21 种)、氧杂环类(10 种)、酸类(2 种)及酚类(5 种),其中相对含量较高的成分有十一烷、雪松醇、2-茨酮等;此外,采用ROAV计算和GC-O-MS分析共同确定了六堡茶挥发性成分中的4 个关键香气成分,即1-甲基萘、癸醛、β-紫罗兰酮、壬醛,表明它们对六堡茶独特香气品质的形成可能具有重要贡献。

关键词: 六堡茶;香气;关键香气化合物;相对气味活性值;气相色谱-嗅闻-质谱

Abstract: The volatile components in a representative batch of Liupao tea were extracted and analyzed using head space-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME/GC-MS) and the key aroma compounds were identified by relative odor activity value (ROAV) combined with gas chromatography-olfactometry-mass spectrometry (GC-O-MS). A total of 81 volatile compounds including 16 alcohols, 9 aldehydes, 12 ketones, 6 esters, 21 hydrocarbons, 10 heteroaxygens, 2 acids and 5 phenols were identified, the most abundant being undecane, cedrol, and D-camphor. Moreover, 1-methyl naphthalene, decanal, β-ionone, and nonanal were confirmed as the key aroma compounds, indicating that they may contribute significantly to the aroma quality of Liupao tea.

Key words: Liupao tea; aroma; key aroma compounds; relative odor activity value; gas chromatography-olfactometry-mass spectrometry

中图分类号: