[Dynamic change of paeoniflorin content in root of Paeonia lactiflora growing at Duolun County, Inner Mongolia].
To explore the dynamic change of paeoniflorin content in root of Paeonia lactiflora.


METHODS
The samples were collected and paeoniflorin content was determined by HPLC.


RESULTS
The results showed that the average content of paeoniflorin was the lowest at 3.05% in the roots collected in May, and during the fruit time it was rather high in August at 4.72%, and in September at 4.58%. The average content showed no significant differences during June to October.


CONCLUSIONS
Wild plant of P. lactiflora might be collected for medical use during blooming stage until wilting stage.
Institute of Chinese Materia Medica, China Academy of Chinese Medical Sciences, Beijing 100700, China.
Xue-Feng
XF
Feng
Shi-Lin
SL
Hu
Yong-Xin
YX
Zhang
Yan
Y
He
Qi-Wei
QW
Zhang
Xiao-Guang
XG
Ge
Jing-Yu
JY
Yang
D001565:Benzoates / Q000032:analysis / Q000737:chemistry*; D001952:Bridged-Ring Compounds / Q000032:analysis / Q000737:chemistry*; D002681:China; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D005960:Glucosides / Q000032:analysis / Q000737:chemistry*; D039821:Monoterpenes; D029596:Paeonia / Q000737:chemistry*; D018517:Plant Roots / Q000737:chemistry*; D015203:Reproducibility of Results; D006027:Glycosides
D001565:Benzoates; D001952:Bridged-Ring Compounds; D005960:Glucosides; D039821:Monoterpenes; C015423:peoniflorin; D006027:Glycosides