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中国精品科技期刊2020
岳翠男,秦丹丹,李文金,等. 基于HS-SPME-GC-MS和OAV鉴定浮梁红茶关键呈香物质[J]. 食品工业科技,2022,43(9):251−258. doi: 10.13386/j.issn1002-0306.2021070342.
引用本文: 岳翠男,秦丹丹,李文金,等. 基于HS-SPME-GC-MS和OAV鉴定浮梁红茶关键呈香物质[J]. 食品工业科技,2022,43(9):251−258. doi: 10.13386/j.issn1002-0306.2021070342.
YUE Cuinan, QIN Dandan, LI Wenjin, et al. Identification of Key Aroma Components in Fuliang Black Tea Based on HS-SPME-GC-MS and OAV[J]. Science and Technology of Food Industry, 2022, 43(9): 251−258. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021070342.
Citation: YUE Cuinan, QIN Dandan, LI Wenjin, et al. Identification of Key Aroma Components in Fuliang Black Tea Based on HS-SPME-GC-MS and OAV[J]. Science and Technology of Food Industry, 2022, 43(9): 251−258. (in Chinese with English abstract). doi: 10.13386/j.issn1002-0306.2021070342.

基于HS-SPME-GC-MS和OAV鉴定浮梁红茶关键呈香物质

Identification of Key Aroma Components in Fuliang Black Tea Based on HS-SPME-GC-MS and OAV

  • 摘要: 为探讨浮梁红茶的挥发性香气成分组成,从中筛选其关键呈香物质。本研究采用顶空固相微萃取-气质联用(headspace-solid phase microextraction-gas chromatography-mass spectrometry,HS-SPME-GC-MS)鉴定浮梁红茶的挥发性成分,通过香气活度值(odor activity value,OAV)与主成分分析(principal component analysis,PCA)相结合筛选其关键呈香物质。结果表明,在浮梁红茶中分离鉴定出73种挥发性成分,包括醇类16种、酯类12种、碳氢化合物11种、酮类10种、醛类9种、酸类6种、杂环类6种和酚类及其衍生物3种,醇类种类和相对含量均为最高,其中,44种挥发性成分在3个浮梁红茶样品之间无显著性差异(P>0.05),29种有显著性差异(P<0.05)。挥发性成分中有15种的OAV不小于1,最终筛选出柠檬醛、苯甲醇、香叶醇、α-紫罗酮、反式-橙花叔醇、香叶基丙酮、苯乙醇、水杨酸甲酯、正己醛、芳樟醇和2-甲基吡嗪等11种化合物为浮梁红茶的关键呈香物质。本研究结果为解析浮红的特征性风味品质、明确其香气物质前体与品质定向调控提供了理论基础。

     

    Abstract: In order to study the composition of volatile aroma components in Fuliang black tea and screen the key aroma components, in this study, headspace-solid phase microextraction-gas chromatography-mass spectrometry (HS-SPME-GC-MS) was performed to identify the volatile components of Fuliang black tea, and the key aroma components were selected by the odor activity value (OAV) and principal component analysis (PCA). The 73 kinds of volatile components were isolated and identified in Fuliang black tea, including 16 alcohols, 12 esters, 11 hydrocarbons, 10 ketones, 9 aldehydes, 6 acids, 6 heterocycles and 3 phenols and their derivatives. The kinds and relative contents of alcohols were the highest, among which 44 kinds of volatile components had no significant difference among the three Fuliang black tea samples (P>0.05), and 29 kinds had significant difference (P<0.05). The OAV of 15 volatile components was not less than 1. Finally, 11 compounds were selected as the key aroma components of Fuliang black tea, including citral, benzyl alcohol, geraniol, α-lonone, trans-nerolidol, geranylacetone, phenylethanol, methyl salicylate, hexanal, linalool and 2-methylpyrazine. The results of this study provided a theoretical basis for analyzing the characteristic flavor quality of Fuliang black tea, clarifying its aroma precursors and quality oriented control.

     

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