A comparative study of aromatic characterization of Yingde Black Tea infusions in different steeping temperatures
文献类型： 外文期刊
作者： Liu, Haocheng 1 ; Xu, Yujuan 1 ; Wen, Jing 1 ; An, Kejing 1 ; Wu, Jijun 1 ; Yu, Yuanshan 1 ; Zou, Bo 1 ; Guo, Manhua 2 ;
作者机构： 1.Guangdong Acad Agr Sci, Sericultural & Argi Food Res Inst, Minist Agr & Rural Affairs, Key Lab Funct Foods,Guangdong Key Lab Agr Prod Pr, 133 Yiheng St,Dongguanzhuang Rd, Guangzhou 510610, Peoples R China
2.Agr Bur Yingde City, 95 Heping Middle Rd, Yingde 513000, Peoples R China
关键词： Yingde black tea; Steeping temperature; Gas chromatography-olfactometry; Descriptive sensory analysis
期刊名称：LWT-FOOD SCIENCE AND TECHNOLOGY （ 影响因子：4.006； 五年影响因子：4.385 ）
ISSN： 0023-6438
年卷期： 2021 年 143 卷
页码：
收录情况： SCI
摘要： Black tea, known for its unique aroma, is one of the most popular non-alcoholic beverages. Because of complex aroma composition, studying black tea aroma has attracted widespread attention. The aim of this study was to evaluate the effect of different steeping temperatures (60 degrees C, 70 degrees C, 80 degrees C, and 95 degrees C) on the aroma composition of Yingde black tea for the first time. A total of 157 volatile compounds were identified by gas chromatographymass spectrometry (GC-MS). These compounds can be divided into 11 categories, including alcohols, esters, ketones, aldehydes, terpenes and sulfides. The types of different volatile compounds and contents in tea infusion samples show a positive correlation with steeping temperature. A total of 16 main aromatic compounds were identified though the comparison analysis of gas chromatography-olfactometry (GC-O FD = 32) data and odor activity value (OAV value = 1), including beta-damascone, beta-ionone, linalool, ethyl hexanoate, dimethyl sulfide, dimethyl trisulfide, nonanal, methyl salicylate, 3-hexenyl isovalerate, cedrol, and longifolene. A correlation of characteristic aroma data with descriptive sensory analysis (DSA) data clearly established that different steeping temperatures result in different overall aroma qualities of the black tea, indicating that steeping temperature is a key parameter affecting the aroma composition.
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