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Foods | Free Full-Text | Varietal Authenticity Assessment of QTMJ Tea Using Non-Targeted Metabolomics and Multi-Elemental Analysis with Chemometrics

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

Wuyishan National Park forges ahead with sustainable tea

Wuyishan National Park has taken significant steps to safeguard its traditional tea heritage and industry, while embracing technological advances.

Across China: Sci-tech experts boost output, vitality in tea-growing areas

FUZHOU, Sept. 15 (Xinhua) Liu Guoying has become a household name for his expertise in producing Wuyi Rock Tea, a form of national intangible cultural herita

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