化学成分
块根含粘质和淀粉,酒石酸(tartaricacid),β-谷甾醇(β-sitosterol),延胡索酸(fumaricacid),胡萝卜甙(daucosterol)。叶含没食子酸(gallicacid),1,2,6-三-O-没食子酰基-β-D-吡喃葡萄糖甙(1,2,6-tri-O-galloyl-β-D-glucopyranoside),1,2,3,6-四-O-没食子酰基-β-D-吡喃葡萄糖甙(1,2,3,6-tetra-O-galloyl-β-D-glucopyranoside),1,2,4,6-四-O-没食子酰基-β-D-吡喃葡萄糖甙(1,2,4,6-tetra-O-galloyl-β-D-glucopyranoside),1,2,3,4,6-五-O-没食子酰基-β-D-吡喃葡萄糖甙(1,2,3,4,6-penta-O-galloyl-β-D-glucopyranoside),二没食子酸(digallicacid),1,4,6-三-O-没食子酰基-β-D-吡喃葡萄糖甙(1,4,6-tri-O-galloyl-β-D-glucopyra-noside),2,4,6-三-O-没食子酰基-D-吡喃葡萄糖甙(2,4,6-tri-O-galloyl-D-glucopyranoside),2,3,4,6-四-O-没食子酰基-D-吡喃葡萄糖甙(2,3,4,6-tetra-O-galloyl-D-glucopyranoside),6-O-二没食子酰基-1,2,3-三-O-没食子酰基-β-D-吡喃葡萄糖甙(6-O-digal-loyl-1,2,3-tri-O-galloyl-β-D-glucopyranoside),槲皮素-3-O-a-L-鼠李糖甙(quercetin-3-O-a-L-rhamnoside),槲皮素-3-O-(2-O-没食子酰基)-a-L-鼠李糖甙[quercetin-3-O-(2-O-galloyl)-a-L-rhamnoside]