食品科学 ›› 2024, Vol. 45 ›› Issue (2): 248-257.doi: 10.7506/spkx1002-6630-20230422-215

• 成分分析 • 上一篇    下一篇

小贯小绿叶蝉刺吸对青心大冇美人茶香气和滋味代谢物的影响

李明金,朱艳宇,何春梅,闫佳伟,金珊   

  1. (福建农林大学园艺学院,福建 福州 350002)
  • 出版日期:2024-01-25 发布日期:2024-02-05
  • 基金资助:
    福建省科技厅星火项目(2022S0031);福建省自然科学基金面上项目(KJD20028A); 福建张天福茶叶发展基金会科技创新基金项目(FJZTF01); 财政部和农业农村部:国家现代农业产业技术体系资助项目(CARS-19)

Effect of Empoasca onukii Puncturing Aroma- and Taste-Active Metabolites of Qingxindamao Beauty Tea

LI Mingjin, ZHU Yanyu, HE Chunmei, YAN Jiawei, JIN Shan   

  1. (College of Horticulture, Fujian Agriculture and Forestry University, Fuzhou 350002, China)
  • Online:2024-01-25 Published:2024-02-05

摘要: 为了探究小贯小绿叶蝉刺吸对青心大冇茶树品种制作的美人茶代谢产物的影响,采用感官审评、超高效液相色谱-四极杆飞行时间质谱(ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry,UPLC-Q-TOF-MS)和气相色谱-质谱(gas chromatography-mass spectrometry,GC-MS)技术,对无叶蝉刺吸鲜叶和叶蝉刺吸鲜叶加工而成的美人茶的感官品质和代谢物进行比较分析。结果表明,有叶蝉刺吸的美人茶品质较好。与无刺吸美人茶相比,有刺吸美人茶中黄酮和黄酮醇及其糖苷、酚酸、茶黄素、糖苷衍生物和单宁含量增加,氨基酸、糖类和脂质含量下降。基于气味活度值(odor activity value,OAV)和偏最小二乘判别分析(partial least squares discriminant analysis,PLS-DA),确定了香叶醇、芳樟醇、β-月桂烯、水杨酸甲酯和D-柠檬烯这5 种特征挥发物。该研究从植物代谢组学角度揭示了有无叶蝉刺吸的美人茶代谢产物的差异性。

关键词: 美人茶;小贯小绿叶蝉;刺吸;香气;滋味;代谢物

Abstract: To explore the effects of Empoasca onukii puncturing on metabolites in beauty tea produced from the cultivar Qingxindamao, sensory evaluation, ultra-high performance liquid chromatography-quadrupole time-of-flight mass spectrometry (UPLC-Q-TOF-MS) and gas chromatography-mass spectrometry (GC-MS) were used to compare the sensory quality and metabolites of beauty tea processed from fresh tea leaves punctured or not punctured by E. onukii. The results showed that the quality of beauty tea with E. onukii puncturing was better. The contents of flavones, flavanols and their glycosides, phenolic acids, theaflavins, glycoside derivatives and tannins increased compared with beauty tea without E. onukii puncturing, while the contents of amino acids, saccharides and lipids decreased. Based on odor activity value (OAV) and partial least squares discriminant analysis (PLS-DA), a total of five characteristic volatile components, including geraniol, linalool, β-myrcene, methyl salicylate and D-limonene, were identified.

Key words: beauty tea; Empoasca onukii; puncturing; aroma; taste; metabolites

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