Application of Western-blot in Identification of Medicinal Panax Species / 中药新药与临床药理

ABSTRACT

Proteins from dried roots of three medicinal Panax species (P. Quinquefolius, P. ginseng and P. nologinseng) were analyzed by SDS-PAGE and Western-blot. The protein fin- gerprints of Panax species were confirmed. From 28KD to 58KD and 55KD are in common. Very specific fingerprints of P. quinquefolius are found below 28KD. The fingerprints above 58KD seemed to be peculiar to P. ginsing. Hence the Western-blot approach can be used as a means to authenticate the concerned Panax species, especially for identification of P. quinquefolius.