The chemical constituents of the fatty oil from seeds of Descurainia sophia(L.) Webb ex Prantl were analyzed by GC-MS.The results showed that thirty-four compounds were isolated and identified,representing 97.259% of ...The chemical constituents of the fatty oil from seeds of Descurainia sophia(L.) Webb ex Prantl were analyzed by GC-MS.The results showed that thirty-four compounds were isolated and identified,representing 97.259% of the total fatty oil.The main constituents of oil were unsaturated fatty acids(31.745%),unsaturated fatty acid esters(38.631%) and saturated fatty acid esters(12.285%).The main compounds with contents over 10%(V/V) followed as: 9,12,15-calendic acid-2,3-dihydroxypropyl ester(14.763%),(9Z,12Z,15Z)-calendic acid ethyl ester(14.723%) and(Z,Z)-9,12-octadecadienoic acid(13.073%).展开更多
采用硅胶吸附柱色谱的手段 ,从南葶苈子中分离得到一个化合物 ,利用理化和谱学 (NMR ,ESI MS)分析的方法 ,确定其结构为槲皮素 7 O β D 吡喃葡萄糖基 (1→ 6) β D 吡喃葡萄糖苷(quercetin 7 O β D glucopyranosyl(1→ 6) β D gluc...采用硅胶吸附柱色谱的手段 ,从南葶苈子中分离得到一个化合物 ,利用理化和谱学 (NMR ,ESI MS)分析的方法 ,确定其结构为槲皮素 7 O β D 吡喃葡萄糖基 (1→ 6) β D 吡喃葡萄糖苷(quercetin 7 O β D glucopyranosyl(1→ 6) β D glucopyranoside) ,该化合物的结构未见文献报道 ,为新化合物。展开更多
文摘The chemical constituents of the fatty oil from seeds of Descurainia sophia(L.) Webb ex Prantl were analyzed by GC-MS.The results showed that thirty-four compounds were isolated and identified,representing 97.259% of the total fatty oil.The main constituents of oil were unsaturated fatty acids(31.745%),unsaturated fatty acid esters(38.631%) and saturated fatty acid esters(12.285%).The main compounds with contents over 10%(V/V) followed as: 9,12,15-calendic acid-2,3-dihydroxypropyl ester(14.763%),(9Z,12Z,15Z)-calendic acid ethyl ester(14.723%) and(Z,Z)-9,12-octadecadienoic acid(13.073%).
文摘采用硅胶吸附柱色谱的手段 ,从南葶苈子中分离得到一个化合物 ,利用理化和谱学 (NMR ,ESI MS)分析的方法 ,确定其结构为槲皮素 7 O β D 吡喃葡萄糖基 (1→ 6) β D 吡喃葡萄糖苷(quercetin 7 O β D glucopyranosyl(1→ 6) β D glucopyranoside) ,该化合物的结构未见文献报道 ,为新化合物。