Identification of volatile components and analysis of aroma characteristics of Jiangxi Congou black tea
文献类型: 外文期刊
作者: Yue, Cuinan 1 ; Yang, Puxiang 1 ; Qin, Dandan 3 ; Cai, Hailan 1 ; Wang, Zhihui 1 ; Li, Chen 1 ; Wu, Hualing 3 ;
作者机构: 1.Jiangxi Sericulture & Tea Res Inst, Tea Res Inst, Nanchang, Jiangxi, Peoples R China
2.Tea Res Inst, Jiangxi Key Lab Tea Qual & Safety Control, Nanchang, Jiangxi, Peoples R China
3.Guangdong Acad Agr Sci, Tea Res Inst, Guangzhou 510640, Peoples R China
关键词: Jiangxi Congou black tea; aroma; QDA; GC-MS; PLS-VIP
期刊名称:INTERNATIONAL JOURNAL OF FOOD PROPERTIES ( 影响因子:2.727; 五年影响因子:2.938 )
ISSN: 1094-2912
年卷期: 2020 年 23 卷 1 期
页码:
收录情况: SCI
摘要: Jiangxi Congou black tea is one of the earliest Congou black tea in China. In order to explore its sensory characteristics and molecular sensory basis, quantitative description analysis (QDA) and gas chromatography-mass spectrometry (GC-MS) were used to analyze the sensory characteristics and volatile components of 11 Congou black tea samples from Jiangxi Province in China. The results showed that the aroma characteristics of Jiangxi Congou black were composed of 11 aroma descriptors, namely, sweet-smell, floral, fruity, roasted, spicy, fresh, green, oil, off-odor, woody and smoky. There was also interaction effect between sensory attributes of aroma, which were significant negative correlation between floral, and fruity, and green. The presence of roasted incense could significantly enhance the olfactory perception of off-odor and smoky, and off-odor was an important attribute that affects the aroma quality of Jiangxi Congou black tea. Volatile components (i.e. 74 kinds) were identified, among which the highest content and species were alcohols, followed by esters, and the lowest were heterocycles and terpenes. The results of partial least square variable import project (PLS-VIP) showed that there were 29 volatile compounds that had an important contribution to the aroma characteristics of Congou black tea, and the volatile compounds that had an important influence on six aroma attributes were obtained.
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