| Title: | Identification of Key Aroma Compounds Responsible for the Floral Ascents of Green and Black Teas from Different Tea Cultivars |
| Author(s): | Fang QT; Luo WW; Zheng YN; Ye Y; Hu MJ; Zheng XQ; Lu JL; Liang YR; Ye JH; |
| Address: | "Tea Research Institute, Zhejiang University, 866 Yuhangtang Road, Hangzhou 310058, China. Jinhua Department of Economic Specialty Technology Promotion, 828 Shuanglong South Road, Jinhua 321000, China. Zhejiang Hua's Tea Co., Ltd., 168 Huangcun Village, Yongkang 321300, China" |
| DOI: | 10.3390/molecules27092809 |
| ISSN/ISBN: | 1420-3049 (Electronic) 1420-3049 (Linking) |
| Abstract: | "Chemicals underlying the floral aroma of dry teas needs multi-dimensional investigations. Green, black, and freeze-dried tea samples were produced from five tea cultivars, and only 'Chunyu2' and 'Jinguanyin' dry teas had floral scents. 'Chunyu2' green tea contained the highest content of total volatiles (134.75 mug/g) among green tea samples, while 'Jinguanyin' black tea contained the highest content of total volatiles (1908.05 mug/g) among black tea samples. The principal component analysis study showed that 'Chunyu2' and 'Jinguanyin' green teas and 'Chunyu2' black tea were characterized by the abundant presence of certain alcohols with floral aroma, while 'Jinguanyin' black tea was discriminated due to the high levels of certain alcohols, esters, and aldehydes. A total of 27 shared volatiles were present in different tea samples, and the contents of 7 floral odorants in dry teas had correlations with those in fresh tea leaves (p < 0.05). Thus, the tea cultivar is crucial to the floral scent of dry tea, and these seven volatiles could be promising breeding indices" |
| Keywords: | Alcohols/analysis *Camellia sinensis/chemistry Gas Chromatography-Mass Spectrometry/methods Odorants/analysis Plant Breeding Tea/chemistry *Volatile Organic Compounds/analysis alcohols co-expression analysis floral scent principal component analysis proce; |
| Notes: | "MedlineFang, Qi-Ting Luo, Wen-Wen Zheng, Ya-Nan Ye, Ying Hu, Mei-Juan Zheng, Xin-Qiang Lu, Jian-Liang Liang, Yue-Rong Ye, Jian-Hui eng 2021C02067-5/Zhejiang Science and Technology Major Program on Agricultural New Variety Breeding-Tea Plant/ No. 2019-2-006/the Science and Technology Project of Jinhua/ CARS-19/the China Agriculture Research System (Tea)/ Switzerland 2022/05/15 Molecules. 2022 Apr 28; 27(9):2809. doi: 10.3390/molecules27092809" |
