Objective: To analyze and optimize extraction technics of Polygonum orientale flowers by response surface methodology.
Methods: With the index for the content of taxifolin in flowers of Polygonum orientale, the effect of three factors such as concentration of alcohol, extraction time and solvent-solid ratio was designed by Box-Behnken central composite. Extraction technic parameters of Polygonum orientale flowers was optimized by response surface methodology.
Zhongguo Zhong Yao Za Zhi
September 2013
Objective: To find out the correlation between the content of taxifolin in Polygonum orientale and the storage time.
Method: HPLC was used to determine taxifolin. The chromatographic condition was as following: Diamonsil C18 column (4.
Zhongguo Zhong Yao Za Zhi
January 2013
Objective: To establish a HPLC-DAD method for the determination of axifolin, naringenin, quercetin and kaempferol in Cudrania tricuspidata and C. cochinchinensis in order to provide a scientific reference for species identification and quality evaluation, by establishing.
Method: The determination was performed by HPLC-DAD on an Agilent C18 column (4.