芍藥 藥效成分의 根內分布 및 含量變異

Distribution of medicinal constituents and content variations in peony roots

Comparative analysis of paeoniflorin and albiflorin content was performed by HPLC using the roots of P. lactiflora Pall. which were different root ages and those of wild species. Both contents of albiflorin and paeoniflorin of roots, having the thickness below 2㎜, were higher than any other root, being above 2㎜ including rhizome. The paeoniflorin content of rhizomes was 6.34%, showing higher than those of the thick roots used as medicinal drugs, but there were no diffenences of paeoniflorin contents in the roots above 5㎜. In the content comparisions between root cortex and core in the same roots, the cortex showed higher paeoniflorin content than core. The albiflorin and paeoniflorin contents among the different root ages of single flower type had little differences and the content paeoniflorin in the wild species(P. japonica Takeda.) was lower than that of P. lactiflora Pall.