A Comparative Study on Commercial Samples of the Roots of Paeonia vitchii and P. lactiflora.
A total of 37 commercial samples of Paeoniae Radix ( PAEONIA LACTIFLORA Pall. = P. ALBIFLORA PALL, and P. VITCHII Lynch), were collected from Taiwan's herbal market. The contents of eight constituents (gallic acid, oxypaeoniflorin, albiflorin, paeoniflorin, benzoic acid, pentagalloylglucose, paeonol, and benzyoylalbiflorin) in these samples were determined by high-performance liquid chromatography. It was found that constituent contents in P. LACTIFLORA samples were generally higher than in P. VITCHII samples except for the albiflorin/oxypaeoniflorin ratio and paeonol content. The major compounds of P. LACTIFLORA were paeoniflorin, albiflorin, and pentagalloylglucose, while those in P. VITCHII were paeoniflorin, pentagalloylglucose, and oxypaeoniflorin. The peak-area ratio of albiflorin/oxypaeoniflorin was higher than unity in P. LACTIFLORA samples but lower than unity in P. VITCHII, and the ratio can be used to differentiate the origin of PAEONIA species clearly. In addition, the former had higher contents in the core wood but the latter in the cortex.[1]References
- A Comparative Study on Commercial Samples of the Roots of Paeonia vitchii and P. lactiflora. Chuang, W.C., Lin, W.C., Sheu, S.J., Chiou, S.H., Chang, H.C., Chen, Y.P. Planta Med. (1996) [Pubmed]
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