[Quality of processed samples of Daphne genkwa Sieb. et Zucc]

Content determination has been made for the genkwanin, yuanhuacine, agueous and ethanolic extracts, total ash and acid-insoluble ash in thirteen samples of Daphne genkwa (processed by the authors, processed in pilot plant and marketed in seven regions), as well as for the acetic acid in thirteen vinegar-processed samples of Daphne genkwa. Studies have also been conducted on the characteristics, microscopic and physico-chemical identification of the herb, so as to provide objective, scientific criteria for quality control of the herb in small slices for medical use.