In this paper, a combination of non-targeted metabolomics and multi-element analysis was used to investigate the impact of five different cultivars on the sensory quality of QTMJ tea and identify candidate markers for varietal authenticity assessment. With chemometric analysis, a total of 54 differential metabolites were screened, with the abundances significantly varied in the tea cultivars. By contrast, the QTMJ tea from the Yaoshan Xiulv (XL) monovariety presents a much better sensory quality as result of the relatively more abundant anthocyanin glycosides and the lower levels of 2′-o-methyladenosine, denudatine, kynurenic acid and L-pipecolic acid. In addition, multi-elemental analysis found 14 significantly differential elements among the cultivars (VIP > 1 and p < 0.05). The differences and correlations of metabolites and elemental signatures of QTMJ tea between five cultivars were discussed using a Pearson correlation analysis. Element characteristics can be used as
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At 32° N latitude, the Dabie Mountains region, with a high latitude and altitude, produces Xinyang Mao Jian tea, which has a full-bodied flavor and a long-lasting aroma.
Next Saturday, May 7, at 2 pm, the Chilmark library hosts Writing for Young People, a monthly virtual group where writers share their work, critique and discuss favorite books in the marketplace older and newer. If you are working on a picture book, middle-grade, Young Adult story, or nonfiction for young people or if […]