SPME-GC-MS Technique Combined with rOAV for the Analysis of Key Aroma Substances of Zijuan White Tea with Different Processing Processes

被引：0

作者：

Li Y. ^{[1
]}

Wu T. ^{[1
]}

Huang G. ^{[1
]}

Ren L. ^{[1
]}

Ma C. ^{[1
]}

Zhou X. ^{[1
]}

Li Y. ^{[1
]}

Zhou H. ^{[1
]}

机构：

[1] College of Tea, Yunnan Agricultural University, Kunming

来源：

Science and Technology of Food Industry | 2023年 / 44卷 / 09期

关键词：

headspace solid-phase microextraction coupled with gas chromatography-mass spectrometry(HS-SPME-GC-MS); key aroma substances; white tea; Zijuan;

D O I：

10.13386/j.issn1002-0306.2022060240

中图分类号：

学科分类号：

摘要：

In order to study the key aroma compounds of Zijuan white tea with different processing technologies, headspace solid-phase micro extraction and gas chromatography mass spectrometry (HS-SPME-GC-MS), combined with sensory evaluation, PCA validation, OPLS-DA analysis and relative odor activity value (rOAV), was used to analyze and screen the key aroma compounds of Zijuan white tea. The results showed that 82 major aroma components were detected, mainly alcohols, esters, heterocyclic and aromatic compounds, with relatively high contents of linalool, methyl salicylate, benzyl alcohol and β-Ionone. The results of rOAV analysis showed that 9 volatile organic compounds including 1-octen-3-ol, αIonone, phenylacetaldehyde and methyl salicylate contributed to the aroma formation of natural withering Zijuan white tea (TZW) with floral and fruity aroma and spicy medicinal aroma, and 9 volatile organic compounds including 1-octen-3-ol, αIonone, β-Ionone and benzaldehyde contributed to the aroma formation of compound withering Zijuan white tea (CZW) with floral and fruity aroma and spicy aroma. OPLS-DA analysis combined with rOAV showed that 1-octene-3-ol and methyl salicylate were the key compounds for aroma difference between TZW and CZW. In summary, the flower and fruit aroma of Zijuan white tea processed by natural wilting was more abundant, which could effectively improve the aroma quality of Zijuan white tea. © 2023 Ministry of Health. All rights reserved.

引用

页码：324 / 332

页数：8

共 33 条

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