Table 2.
Contents of isoquinoline alkaloids in plant extracts.
| Alkaloid | Contents of Alkaloids in Plant Extracts Obtained from Different Parts of Mahonia aquifolium Collected in Various Vegetation Seasons (mg/g of Dry Plant Material) | ||
|---|---|---|---|
| Before Flowering | During Flowering | After Flowering | |
| Cortex | |||
| Berberine | 0.133 * | 3.313 | 0.066 |
| Magnoflorine | 0.086 * | - | 0.099 |
| Palmatine | 0.036 * | 0.790 | 0.789 |
| Leaves | |||
| Berberine | - | 0.0217 | <LOQ |
| Magnoflorine | 0.322 * | 0.2342 | 0.317 |
| Palmatine | - | <LOQ | - |
| Barked stalk | |||
| Berberine | ● | 0.436 | 0.043 |
| Magnoflorine | ● | - | 0.188 |
| Palmatine | ● | 0.065 | 0.339 |
| Roots | |||
| Berberine | ● | 7.036 | 0.0074 |
| Magnoflorine | ● | - | - |
| Palmatine | ● | 0.620 | 0.299 |
| Fruit | |||
| Berberine | ● | ● | <LOQ |
| Magnoflorine | ● | ● | - |
| Palmatine | ● | ● | - |
*: Data published in ref [29]; -: peak was not identified; <LOQ: below limit of quantification; ●: The extract was not investigated.