Correlation analysis between filamentous fungi and chemical compositions in a pu-erh type tea after a long-term storage.

Storage environment caused the difference between Jinhua Pu-erh tea (JPT) and General Pu-erh tea. In this study, fungal flora and chemical compositions were analyzed. The results showed that storage environment caused significant ( < .05) differences of theaflavins (TF), theabrownins (TB), tea polyphenols (TP), and water-soluble sugars (WSS), and a highly significant ( < .01) difference of thearubigins (TR). , , , and were isolated from Pu-erh teas and identified based on colony characteristics and ITS, β-tubulin, and calmodulin gene sequences, respectively. , , and were dominant fungi in JPT and generated macroscopic yellow cleistothecia after a long-term storage. Correlation analysis showed that dominant fungi exhibited significantly ( < .05 or  < .01) positive or negative corrections with TF, TB, TP, WSS, TR, and gallic acid. This study revealed dominant fungi including , and and their effects on given chemical compositions.