Metabolomic and Sensory Insights into the Aging Mechanism of Ripened Pu-Erh Tea over Nine Years.

Correlation analysis ( Figure 2 ) further substantiated these findings, showing that Bitterness and Astringency scores were positively correlated with these monomeric catechins, particularly EGCG and ECG ( p < 0.05 or p < 0.01), while Sweetness scores exhibited a highly significant negative correlation with most catechins and THEO ( p < 0.001).

also in 132,142 other papers

In contrast, thearubigins (TR) showed an increasing trend; they remained low (1.38~2.17%) in early storage but increased significantly by approximately 4.5 fold ( p < 0.05, from 1.38 ± 0.10% to 6.22 ± 0.48%), coinciding with the deepening of the infusion color.

also in 63,971 other papers