主要成分 |
尾脂腺(又名尾腺或羽脂腺)分泌一种含脂蜡的液体,其组成为:水分60.807%,固形物39.193%,蛋白质17.966%,乙醚溶出部分18.777%、溶性灰分0.371%,不溶性灰分0.336%,高级醇7.423%,油酸5.848%,低级脂肪酸0.373%,卵磷脂0.233%。乙醚溶出部分,主要为脂类;低级脂肪酸中有月桂酸、肉豆蔻酸。分泌液的混合脂肪酸有左旋性,是一特点,已找到有四甲基癸酸及四甲基十一酸两种有枝链的脂肪酸。 |
合欢干皮中含木脂体糖甙:左旋-丁香树脂酚-4-O-β-D-呋喃芹菜糖基-(1→2)-β-D-吡喃葡萄糖甙[syringaresinol-4-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranoside],左旋-丁香树脂酚-4-O-β-D-呋喃芹菜糖基-(1→2)-β-D-吡喃葡萄糖基-4ˊ-O-β-D-吡喃葡萄糖甙[syringaresinol-4-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranosyl-4ˊ-O-β-D-glucopyranoside],左旋-丁香树脂酚-4,4ˊ-双-O-β-D-呋喃芹菜糖基-(1→2)-β-D-吡喃葡萄糖甙[syringaresinol-4,4ˊ-bis-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranoside],左旋-丁香树脂酚-4-O-β-D-吡喃葡萄糖甙(syringaresinol-4-O-β-D-glucopyranoside),左旋-丁香树脂酚-4,4ˊ-双-O-β-D-吡喃葡萄糖甙(syringaresinol-4,4ˊ-bis-O-β-D-glucopyranoside),还含有丁香酸甲酯-4-O-β-D-呋喃芹菜糖基-(1→2)-β-D-吡喃葡萄糖甙[syringic acid methyl ester-4-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranoside],秃毛冬青甲素-4-O-β-D-吡喃葡萄糖甙(glaberide-I-4-O-β-D-glucopyranoside),秃毛冬青甲素-4-O-β-D-呋喃芹菜糖基-(1→2)-β-D-吡喃葡萄糖甙[glaberide I-4-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranoside],右旋-5,5ˊ-二甲氧基落叶松脂醇-4-O-β-D-呋喃芹菜糖基-(1→2)-β-D-吡喃葡萄糖甙[5,5ˊ-dimethoxylariciresinol-4-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranoside]和5,5ˊ-二甲氧基-7-氧代落叶松脂醇-4ˊ-O-β-D-呋喃芹菜糖基-(1→2)-β-D-吡喃葡萄糖甙[5,5ˊ-dimethoxy-7-oxolariciresinol-4ˊ-O-β-D-apiofuranosyl-(1→2)-β-D-glucopyranoside]。此外,,干皮中还含21-[4-(亚乙基)-2-四氢呋喃异丁烯酰]剑叶莎酸{21-[4-(ethylidene)-2-tetrahydrofuranmethacryloyl]machaerinic acid},剑叶莎酸甲酯(machaerinic acid methyl ester),金合欢酸内酯(acacic acid lactone),剑叶莎酸内酯(machaerinic acid lactone),金合欢皂甙元(acacigenin)B,7,3ˊ,4ˊ-三羟基黄酮(7,3ˊ,4ˊ-trihydroxyflavone),a-菠菜甾醇葡萄糖甙(a-spinasteryl glucoside)及合欢三萜内酯甲(julibrotriterpenoidal lactone A)。山合欢树皮含鞣质。 |