OBJECTIVE:To identify the root-bark of Aralia elata.METHODS:The origin,property,microscopic characteristics,thin-layer chromatography(TLC) of the root-bark of Aralia elata were identified,and the content of oleanolic acid in the root-bark of Aralia elata was determined by HPLC.RESULT:The identification method for the root-bark of Aralia elata has been established.CONCLUSION: The established method has been proved to be effective for the identification of the root-bark of Aralia elata.

OBJECTIVE:To compare the extraction yield of total flavonoids from fine powder vs.ultrafine powder of Gleditsia sinersis.METHODS:The absorbance was detected under a wavelength of 510 nm by ultraviolet spectrophotometry. The extraction rates of flavonoids from fine powder vs.ultrafine powder of Gleditsia sinersis were computed.RESULTS:The extraction rate of flavonoids from ultrafine powder was 29.1%higher than that from the fine powder of Gleditsia sinersis. CONCLUSION:The extraction rate of flavonoids was increased by superfine comminution.

OBJECTIVE:To identify Gleditsia sinensis.METHODS:The property,microscopic and TLC characteristics of Gleditsia sinensis were identified.RESULTS:The appearance,microscopic and TLC characteristics of Gleditsia sinensis were obtained.CONCLUSION:The established method is effective for the quality control of the Gleditsia sinensis.