主要成分 |
叶含槭鞣质(aceritannin,C20H20O13)等。
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叶含二萜类:穿心莲内酯(andographolide)0.6%,14-去氧穿心莲内酯(14-dioxyandrographolide)0.15%,新穿心莲内酯(neoandrographolide)0.05%,14-去氧穿心莲内酯-19-β-D-葡萄糖甙即14-去氧穿心莲内酯甙即3α-羟基穿心莲潘林内酯甙(14-deoxyandrographolide-19-β-D-glucoside,14-deoxyan-drographoside,andropanoside)0.03%[1,2],14-去氧-12-甲氧基穿心莲内酯(14-deoxy-12-methoxyandrographolide)0.001%,穿心莲潘林内酯(andrograpanin)0.03%;黄酮类:木蝴蝶素(oroxylin)A,汉黄芩素(wogonin);多酚类:咖啡酸(caffeicacid),绿原酸(chlorogenicacid)及二咖啡酰硅宁酸混合物(mixtureofdicaf-feoylquinicacids)。根含黄酮类:穿心莲黄酮(andrographin),5,2-二羟基-7,8-二甲氧基黄酮(panicolin),3-O-甲基魏穿心莲黄素即5-羟基-7,8,2,3-四甲基黄酮(3-O-methoxywightin,5-hydroxy-7,8,2,3-teramethoxyflavone),芹菜素-4,7-二甲醚(apigenin-4,7-dimethylether),5-羟基-7,8-二甲氧基黄烷酮(5-hydroxy-7,8-dimethoxyflavanone),5-羟基-3,7,8,2-四甲氧基黄酮(5-hydrox-y-3,7,8,2-tetramethoxyflavone),5-羟基-7,8-二甲氧基黄酮(5-hydroxy-7,8-dimethoxyflavone),穿心莲黄酮甙(andro-graphidine)A、B、C、D、E及、F,还含α-谷甾醇(α-sitosterol)[5,6]。地上部分含二萜类:穿心莲新甙甙元(3,14-di-deoxyandro-grapholide),14-去氧穿心莲内酯甙,穿心莲内酯甙即穿心莲内酯-19-β-D-葡萄糖甙(andrographiside,andrographolide-19-β-D-gluco-side),穿心莲内酯,新穿心莲内酯,14-去氧-11,12-去氢穿心莲内酯(14-deoxy-11,12-didehydroandrographolide),14-去氧穿心莲内酯。全草含有二萜类:穿心莲内酯,14-去氧代-11-穿心莲内酯(14-deoxy-11-oxo-andrographolide),14-去氧-11,12-去氢穿心莲内酯,14-去氢穿心莲内酯、新穿心莲内酯。此外,尚含香荆芥酚(carvacrol),丁香油酚(eugenol),肉豆蔻酸(myristicacid),三十一烷(hentriacontane)及三十三烷(tritriacontane)。
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