中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
木通苯乙醇苷B | calceolarioside B | 105471-98-5 | C23H26O11 | 478.453 |
—— | [(2R,3S,4S,5R,6R)-6-[2-(3,4-dihydroxyphenyl)ethoxy]-3,4,5-trihydroxyoxan-2-yl]methyl 4-hydroxy-3,5-dimethoxybenzoate | 1346265-61-9 | C23H28O12 | 496.468 |
—— | dopaol β-D-2,3-diketoglucopyranoside | —— | C14H16O8 | 312.276 |
中文名称 | 英文名称 | CAS号 | 化学式 | 分子量 |
---|---|---|---|---|
a-无水葡萄糖酯 | alpha-D-glucopyranose | 492-62-6 | C6H12O6 | 180.158 |
The present work summarizes results of isolation and identification of polar constituents of the methanolic extract of Ligustrum vulgare L. leaves and of the evaluation of inhibiting activity of selected isolates on rat lung cytosol fraction lipoxygenase. Six different compounds were isolated from the ethylacetate and butanol portions of the methanolic extract (hydroxytyrosol and its glucoside, ligustroflavon, oleuropein, acteoside, echinacoside). The inhibitory activity of oleuropein, echinacoside and the water infusion of Ligustrum vulgare leaves tested on LOX was expressed as IC50. Kinetic parameters (K M, V max) and type of inhibition were determined. As the most effective in competitive inhibition of LOX, oleuropein was proved.
本研究总结了从小叶女贞(Ligustrum vulgare L.)叶子的甲醇提取物中分离和鉴定极性成分的结果,以及评估所选分离物对大鼠肺细胞质分数脂氧合酶的抑制活性。从甲醇提取物的乙酸乙酯和丁醇部分中分离出了六种不同的化合物(羟基酪醇及其葡萄糖苷、小叶女贞素、欧洲橄榄苷、酸枣仙草苷)。欧洲橄榄苷、酸枣仙草苷和小叶女贞水浸提物在LOX上的抑制活性被表示为IC50。确定了动力学参数(K M,V max)和抑制类型。作为竞争性抑制LOX中最有效的,欧洲橄榄苷得到了证明。