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Food Chem X

Title:		Non-targeted metabolomics characterization of flavor formation of Lichuan black tea processed from different cultivars in Enshi
Author(s):		Qin X; Zhou J; He C; Qiu L; Zhang D; Yu Z; Wang Y; Ni D; Chen Y;
Address:		"National Key Laboratory for Germplasm Innovation & Utilization of Horticultural Crops, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China. Lichuan Xingdoushan Black Tea Co., Ltd, Lichuan, Hubei 445000, People's Republic of China. College of Horticulture & Forestry Sciences, Huazhong Agricultural University, Wuhan, Hubei, 430070, PR China"
Journal Title:		Food Chem X
Year:		2023
Volume:		20230723
Issue:
Page Number:		100809 -
DOI:		10.1016/j.fochx.2023.100809
ISSN/ISBN:		2590-1575 (Electronic) 2590-1575 (Linking)
Abstract:		"Nine tea cultivars planted in Enshi were selected and processed into 'Lichuan black tea'. Sensory evaluation showed that cultivar had the greatest influence on taste and aroma quality, including sweetness, umami and concentration of taste, as well as sweet and floral fragrances of aroma. The non-volatile and volatile components were identified by UPLC-Q-TOF/MS and GC-MS, and PCA analysis showed good separation between cultivars, which could cause the difference in quality. Baiyaqilan, Meizhan and Echa 10 had a floral aroma, with obvious difference in their aromatic composition from other cultivars. Moreover, Echa 10 also had a strong sweet aroma. The key aroma components in Echa 10 (with the largest cultivation area) were further investigated by GC-O-MS combined with odor activity value (OAV) analysis, included beta-damascenone, phenylethylaldehyde, nonenal, geraniol, linalool, jasmonone, (E)-2-nonenal, beta-cyclocitral, (E)-beta-ocimene, methyl salicylate, beta-ionone, 2,6,10,10-tetramethyl-1-oxaspiro[4.5]dec-6-ene, citral, beta-myrcene, nerol, phenethyl alcohol, benzaldehyde, hexanal, nonanoic acid, and jasmin lactone"
Keywords:		Cultivars Gc-o-ms Lichuan black tea Non-volatile components Odor-active compounds Volatile components;
Notes:		"PubMed-not-MEDLINEQin, Xinxue Zhou, Jingtao He, Chang Qiu, Li Zhang, De Yu, Zhi Wang, Yu Ni, Dejiang Chen, Yuqiong eng Netherlands 2023/10/02 Food Chem X. 2023 Jul 23; 19:100809. doi: 10.1016/j.fochx.2023.100809. eCollection 2023 Oct 30"