食品科学 ›› 2022, Vol. 43 ›› Issue (20): 261-268.doi: 10.7506/spkx1002-6630-20211207-091

• 成分分析 • 上一篇    下一篇

安吉白茶挥发性成分及关键呈香成分分析

石亚丽,白艳,马婉君,朱荫,王佳童,邵晨阳,严寒,林智,吕海鹏   

  1. (1.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;2.中国农业科学院研究生院,北京 100081;3.安吉县农业农村局,浙江 湖州 313300)
  • 出版日期:2022-10-25 发布日期:2022-10-26
  • 基金资助:
    国家现代农业产业技术体系建设专项(CARS-19);中国农业科学院创新工程项目(CAAS-ASTIP-2019-TRICAAS)

Analysis of Volatile Components and Key Aroma-Active Compounds of Anjibaicha

SHI Yali, BAI Yan, MA Wanjun, ZHU Yin, WANG Jiatong, SHAO Chenyang, YAN Han, LIN Zhi, LÜ Haipeng   

  1. (1. 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;2. Graduate School of Chinese Academy of Agricultural Sciences, Beijing 100081, China;3. Anji Agriculture and Rural Bureau, Huzhou 313300, China)
  • Online:2022-10-25 Published:2022-10-26

摘要: 采用搅拌棒吸附萃取结合气相色谱-质谱联用技术研究安吉白茶的挥发性成分组成特点,并利用气相色谱-嗅闻-质谱技术结合相对气味活性值分析了安吉白茶的关键呈香成分。结果表明,在20 个安吉白茶样品中共检测到109 种挥发性成分,其中含量最高的成分有香叶醇、邻苯二甲酸二异丁酯、植醇、水杨酸甲酯、顺式茉莉酮、亚麻酸、芳樟醇等;不同等级安吉白茶的挥发性成分含量存在较大差异;此外,基于34 个共有特征峰,建立安吉白茶挥发性成分指纹图谱;16 种化合物被鉴定为安吉白茶的关键呈香成分,包括反式-β-紫罗兰酮、香叶醇、芳樟醇、己醛、庚醛、(E)-2-庚烯醛、α-紫罗兰酮和(Z)-己酸-3-己烯酯等。

关键词: 茶叶;安吉白茶;挥发性成分;关键呈香成分;指纹图谱

Abstract: Stir bar sorptive extraction (SBSE) combined with gas chromatography-mass spectrometry (GC-MS) was used to detect the volatile composition of 20 Anjibaicha samples, and gas chromatography-olfactometry-mass spectrometry (GC-O-MS) combined with relative odor activity value (ROAV) was utilized to identify its key aroma-active compounds. Results showed that 109 volatile compounds were detected in the tea samples. Among them, geraniol, diisobutyl phthalate, phytol, methyl salicylate, cis-jasmone, linolenic acid, and linalool were the most abundant components. It was found that the contents of volatile components in different grades of Anjibaicha varied greatly. Moreover, a total of 34 common characteristic peaks were selected to establish a fingerprint of the volatile components of Anjibaicha. Sixteen compounds were identified as key aroma-active compounds of Anjibaicha, including trans-β-ionone, geraniol, linalool, hexanal, heptanal, (E)-2-heptenal, α-ionone, and (Z)-3-hexenyl hexanoate.

Key words: Anjibaicha; volatile components; key aroma-active compounds; fingerprint

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