Table 1 |
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|
Alkaloid content in rhizomes (n = 20) of Hydrastis canadensis, Coptis chinensis and Coptis trifolia (Similar alkaloids differ significantly among species at P < 0.0001.) |
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|
Species |
Major alkaloids |
Mean (SD) alkaloid content (mg/g of rhizome) |
|
|
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|
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) |
|
|
|
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|
Kamath et al. Chinese Medicine 2009 4:17 doi:10.1186/1749-8546-4-17 |
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