An HPLC method was established for the simultaneous determination of saikosaponin a, b2, c, d, e, f of Bupleurum chinense DC. in order to study the content difference of saikosaponins in different producing areas, different harvest time and different processed products of Bupleurum chinense DC. The Agela Venusil MP C18 (4.6 mm×250 mm, 5 μm) column was used with a gradient elution of acetonitrile-water at the wavelength of 210 and 254 nm with the flow rate of 1.0 mL·min-1 and the column temperature at 30℃. Based on the content of six kinds of saikosaponins, the differences of saikosaponins in four producing areas, eight harvest periods and 11 processing methods of Bupleurum chinense DC. were systematically studied. The results showed that the content of saikosaponins in Bupleurum chinense DC. was higher in May and August of Liaoning, Shaanxi and Gansu, but only in August from Shanxi in the four producing areas. The content of saikosaponins in 11 processed products was as follows:raw product > bran-stir-fried product > stir-fried product > wine-moistened product > turtle blood-stir-fried product > bran-wine-stir-fried product > wine-stir-fried product > vinegar-moistened product > turtle blood-wine-stir-fried product > vinegar-stir-fried product > honey-stir-fried product > honeymoistened product.
| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |