Quality Monitoring of Distributed Schizandra chinensis (Turcz.) Baill in Korea

Object : This study investigated the quality inspection of Schizandra chinensis (Turcz.) Bail distributed in Korea. Methods: To evaluate the quality of these herbal medicines, we carried out TLC pattern analysis, purity, loss on drying, ash, acid-insoluble ash, essential oil contents, dilute ethanol-soluble, water-soluble, ether-soluble extracts and HPLC analysis. Results : As a result, TCL pattern analysis of schizandrin and gomisin A showed Rf=0.64 and 0.74, respectively. To measured content of schizandrin and gomisin A, we quantitatively analyzed using HPLC. The average contents of schizandrin and gomisin A were detected to be 0.60 (${\pm}$0.02)% and 0.12 (${\pm}$0.004)%, respectively. Discussion : As a result of this study, we suggest that the minimum content of schizandrin and gomisin A should be 0.5% and 0.1%, respectively. We could suggest that the minimum of essential oil content should be 0.6 ml.