Table 1 Alkaloid content in rhizomes (n = 20) of Hydrastis canadensis, Coptis chinensis and Coptis trifolia (Similar alkaloids differ significantly among species at P < 0.0001.)
Species | Major alkaloids | Mean (SD) alkaloid content (mg/g of rhizome) |
|---|---|---|
Hydrastis canadensis | Berberine | 16.76 (3.42) |
Hydrastine | 4.81 (1.48) | |
Coptis chinensis | Berberine | 10.60 (1.36) |
Coptisine | 2.35 (0.27) | |
Palmatine | 2.91 (0.38) | |
Coptis trifolia | Berberine | 3.80 (1.90) |
Coptisine | 3.44 (1.45) |