对芸香科植物黄皮树(PhellodendronchinenseSchneid)树皮的化学成分进行了研究。其方法:取药材2.5kg,加8倍量水回流煎煮3次,每次2h。加入工业酒精至含醇量为80%,抽滤,滤液回收乙醇至无醇味。依次用乙醚、乙酸乙酯、正丁醇萃取,回收溶... 对芸香科植物黄皮树(PhellodendronchinenseSchneid)树皮的化学成分进行了研究。其方法:取药材2.5kg,加8倍量水回流煎煮3次,每次2h。加入工业酒精至含醇量为80%,抽滤,滤液回收乙醇至无醇味。依次用乙醚、乙酸乙酯、正丁醇萃取,回收溶剂。通过反复硅胶柱层析,从不同极性部位共分得6个化合物,经理化及光谱方法鉴定分别为:黄柏酮(I)、黄柏内酯(II)、小檗碱(III)、巴马亭(IV),胡萝卜苷(V)和(+) 5 O 阿魏酰基奎宁酸乙酯(VI),其中化合物VI为新化合物,化合物I为首次从该植物中得到。展开更多
应用RAPD标记方法分析了15个太子参〔Pseudostellaria heterophylla(Miq.)Pax ex Pax et Hoffm.〕种源间的遗传多样性和亲缘关系。10条随机引物共扩增出65条带,其中多态性条带37条,多态性条带百分率达56.9%。用聚类分析方法可将15个太...应用RAPD标记方法分析了15个太子参〔Pseudostellaria heterophylla(Miq.)Pax ex Pax et Hoffm.〕种源间的遗传多样性和亲缘关系。10条随机引物共扩增出65条带,其中多态性条带37条,多态性条带百分率达56.9%。用聚类分析方法可将15个太子参种源分为4类;地理分布越近,太子参种源间的遗传差异越小。来源于安徽宣城的太子参种源遗传变异明显,辽宁凤城的野生太子参与山东地区的太子参栽培种源间的亲缘关系较近,与江苏各地太子参种源的亲缘关系则较远,这些种源均可作为育种材料。自然环境,尤其是生态环境的变化,对太子参的遗传变异有一定的影响。展开更多
The contents of flavonoids including quercetin,luteolin and apigenin in five species of Sonchus L.were analyzed by HPLC. The results showed that the contents of quercetin,luteolin and apigenin in S.arvensis L.,S.olera...The contents of flavonoids including quercetin,luteolin and apigenin in five species of Sonchus L.were analyzed by HPLC. The results showed that the contents of quercetin,luteolin and apigenin in S.arvensis L.,S.oleraceus L.and S.brachyotus DC.were 0.101,0.185 and 0.063 mg·g-1,0.036,0.201 and 0.069 mg·g-1,0.052,0.113 and 0.037 mg·g-1,respectively.In S.asper(L.) Hill,the contents of luteolin and apigenin were 0.031 and 0.018 mg·g-1,respectively,and quercetin was not be detected.In S.lingianus Shih.,the content of luteolin was only 0.084 mg·g-1,and the contents of quercetin and apigenin were trace.The total content of flavonoids in these five species was 0.049-0.349 mg·g-1,in which that in S.arvensis and S. oleraceus were the highest with 0.349 and 0.306 mg·g-1,and that in S.asper was the lowest.展开更多
文摘 对芸香科植物黄皮树(PhellodendronchinenseSchneid)树皮的化学成分进行了研究。其方法:取药材2.5kg,加8倍量水回流煎煮3次,每次2h。加入工业酒精至含醇量为80%,抽滤,滤液回收乙醇至无醇味。依次用乙醚、乙酸乙酯、正丁醇萃取,回收溶剂。通过反复硅胶柱层析,从不同极性部位共分得6个化合物,经理化及光谱方法鉴定分别为:黄柏酮(I)、黄柏内酯(II)、小檗碱(III)、巴马亭(IV),胡萝卜苷(V)和(+) 5 O 阿魏酰基奎宁酸乙酯(VI),其中化合物VI为新化合物,化合物I为首次从该植物中得到。
文摘应用RAPD标记方法分析了15个太子参〔Pseudostellaria heterophylla(Miq.)Pax ex Pax et Hoffm.〕种源间的遗传多样性和亲缘关系。10条随机引物共扩增出65条带,其中多态性条带37条,多态性条带百分率达56.9%。用聚类分析方法可将15个太子参种源分为4类;地理分布越近,太子参种源间的遗传差异越小。来源于安徽宣城的太子参种源遗传变异明显,辽宁凤城的野生太子参与山东地区的太子参栽培种源间的亲缘关系较近,与江苏各地太子参种源的亲缘关系则较远,这些种源均可作为育种材料。自然环境,尤其是生态环境的变化,对太子参的遗传变异有一定的影响。
文摘The contents of flavonoids including quercetin,luteolin and apigenin in five species of Sonchus L.were analyzed by HPLC. The results showed that the contents of quercetin,luteolin and apigenin in S.arvensis L.,S.oleraceus L.and S.brachyotus DC.were 0.101,0.185 and 0.063 mg·g-1,0.036,0.201 and 0.069 mg·g-1,0.052,0.113 and 0.037 mg·g-1,respectively.In S.asper(L.) Hill,the contents of luteolin and apigenin were 0.031 and 0.018 mg·g-1,respectively,and quercetin was not be detected.In S.lingianus Shih.,the content of luteolin was only 0.084 mg·g-1,and the contents of quercetin and apigenin were trace.The total content of flavonoids in these five species was 0.049-0.349 mg·g-1,in which that in S.arvensis and S. oleraceus were the highest with 0.349 and 0.306 mg·g-1,and that in S.asper was the lowest.
