Abstract:The extraction of tea polyphenols (TPs) in dry Camellia chryscath was studied. The influence of some key factors on TPs extraction yield was investigated and the optimal ethanol concentration, solid-liquid ratio, microwave power, microwave heating time, dipping time under normal temperature before and after microwave treatment were found to be 30%, 1:30, 500 w, 40 s, 20 min and 1 h, respectively. Under the optimized extraction conditions, the extraction yield of TPs reached 9.36%.
