| Title: | GC-MS analysis combined with sensory analysis revealed the various aroma characteristics of black tea resulted from different grafting rootstocks |
| Author(s): | Chen W; Qi D; Wang W; Miao A; Ma C; |
| Address: | "Guangdong Provincial Key Laboratory of Tea Plant Resources Innovation & Utilization, Tea Research Institute, Guangdong Academy of Agricultural Sciences, Guangzhou, 510640, China. Agilent Technologies (China) Co. Ltd., Beijing, 100102, China" |
| ISSN/ISBN: | 1750-3841 (Electronic) 0022-1147 (Linking) |
| Abstract: | "The study was aim to investigate the effects of grafting on volatile compounds and sensory quality of black tea. Seven groups of black tea were prepared from one nongrafted tea tree 'Yinghong9 (YJ)' and six grafted tea trees by grafting scion of 'YingHong9' on different rootstocks. Sensory analysis indicated marked/slight variations among seven samples, among which, the one grafting on HuangZhiXiangDanCong (HZX) stood out with floral and fruity aroma. The result of chemometrics analysis suggested various effects on compounds caused by different rootstocks. A total of 38 differential compounds were identified, showing mainly quantitative variations, with 36 being identified in all samples. The significant higher contents of volatiles, such as geraniol, phenylethyl alcohol, (E)-nerolidol, decanal, and linalool oxides, in HZX compared with YJ were observed, which explained why floral and fruity aroma stood out among the whole aroma profile of HZX. Both results of sensory and instrumental analysis suggested certain correlation between compound variations and aroma characteristics. Moreover, different rootstocks influenced the aroma quality in different ways. PRACTICAL APPLICATION: In conclusion, the study illuminates the various effects of grafting on the volatile compounds and aroma quality, which enlightens the possibility of changing aroma quality of black tea by grafting scions on different rootstocks. And thus, it can help guide the practical production when cultivating new varieties" |
| Keywords: | Agriculture/*methods Camellia sinensis/*growth & development Gas Chromatography-Mass Spectrometry/*methods Humans Odorants/*analysis Plant Roots/growth & development Smell Tea/*chemistry Volatile Organic Compounds/analysis aroma characteristics black tea; |
| Notes: | "MedlineChen, Wei Qi, Dandan Wang, Wenwen Miao, Aiqing Ma, Chengying eng yuecainong?ª+2019?ª╡170/the special project from the Provincial governor of Guangdong Province/ 403-2018-XMZC-0002-90/the project of promoting the scientific and technological capacity of tea in cities and counties to promote industrial development/ 201939/the special project from the Dean of Guangdong Academy of Agricultural Sciences/ 2019LM1093/construction of provincial modern agricultural science and technology innovation alliance/ 31500563/the National Natural Science Foundation of China/ 2021/02/12 J Food Sci. 2021 Mar; 86(3):813-823. doi: 10.1111/1750-3841.15612. Epub 2021 Feb 10" |
