Ten compounds were isolated from the 95% ethanol extract of the whole plant of Bidens pilosa L. by silica gel column chromatography, polyamide column chromatography, Sephadex LH-20 column chromatography, MCI column chromatography, and semi-preparative HPLC methods. Based on its physicochemical properties and spectral data (UV, IR, MS, NMR), the structures of the isolates were identified as bidpilaurone glycoside A (1), Z-6-O-(4″-O-acetyl-6″-O-p-coumarinyl-β-D-glucopyranosyl)-6, 7, 3′, 4′-tetrahydroxyaurone (2), okanin 4′-O-β-D-(4″, 6″-diacetyl) glucopyranoside (3), Z-6-O-(6″-O-acetyl-β-D-glucopyranosyl)-6, 7, 3′, 4′-tetrahydroxyaurone (4), 6, 7, 3, 4′-tetrahydroxyaurone (5), Z-6-O-(6-O-coumarinyl-β-D-glucopyranosyl)-6, 7, 3′, 4′-tetrahydroxyaurone (6), Z-6-O-(4, 6-acetyl-β-D-pyranosyl)-6, 7, 3, 4′-tetrahydroxyaurone (7), Z-6-O-(6″-O-p-coumarinyl-β-D-glucopyranosyl)-6, 7, 3′, 4′-tetrahydroxyaurone (8), luteolin (9), and 7-O-β-D-glucopyranosyl-5, 3′-dihydroxy-3, 6, 4′-trimethoxyflavone (10). Among them, compound 1 was a new aurone glycoside from B. pilosa L. Compounds 4 and 9 could partially inhibit the lipid deposition induced by sodium oleate and palmitate in human liver HepG2 cells. Molecular docking technology predicts that the potential target for its hypolipidemic activity may be peroxisome proliferator-activated receptors γ (PPARγ).
| 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 |