Objective: To evaluate decoction quality of compressed chrysanthemum decoction pieces by contrasting decoction quality with ordinary chrysanthemum pieces Method: The method of traditional decoction extraction

the content of chlorogenic acid and dry extract yielding rate were used as indexs to investigate the decotion quality of ordinary chrysanthemum pieces and compressed chrysanthemum decoction pieces in chrysanthemum decoction and Juhua Tang. Result: The content of chlorogenic acid and dry extract yielding rate in compressed chrysanthemum pieces were a little higher than ordinary chrysanthemum pieces in the chrysanthemum decoction and Juhua Tang

but the difference is not significant. Conclusion: Compressed chrysanthemum decoction pieces dosen't affect the ingredients boiled out from the herbal

which can assure the decoction quality.