Comparison of volatile and nonvolatile metabolites in green tea under hot-air drying and four heat-conduction drying patterns using widely targeted metabolomics.

Differences in catechins and phenolic acids may be related to the dying time and the quantity of tea leaves in the drying patterns because they presented a decreasing trend of FFGT > CarFGT > RFGT and were even correlated with the shape of tea leaves because of the apparent increase in CalFGT compared with other heat-conduction patterns. 3.2.3 Flavonols Flavonols and their glycosides accounted for approximately 3–4% of the weight of dried tea leaves.

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