对中药薄芝(Ganoderma capense)菌丝体的化学成分进行研究。通过硅胶柱色谱、Sephadex LH-20凝胶柱色谱、半制备HPLC等方法分离纯化得到10个新倍半萜类化合物，经质谱和核磁共振等波谱方法鉴定其结构。
Actinidia kolomikta (Rupr.et Maxim.) Planch.as a traditional Chinese herb,mainly used for treating scurvy and enhance immunity in Yanbian area.In the present study,one new compound (1),along with nine
Potentilla viscosa is one kind of perennial herb which is mainly distributed in the Northeast and Northwest China,Korea,Mongolia,and Siberia.The Potentilla viscosa has been used to treat diverse chron
A brief survey of the optimization of the load and wash steps for amentoflavone from podocarpus nagi with macroporous adsorption resin is given in this study.Based on the comparison of several common
涡虫,属于扁形动物门,涡虫纲,为最原始的三胚层动物,其形态、大小及生境非常丰富,因其卓越的再生能力成为干细胞研究的重要模型。我国海岸线绵长,涡虫资源丰富,较为遗憾的是,我国对海洋涡虫的研究仍十分贫乏,21世纪正式报道的海洋涡虫仅2种[1-2],均为对这两种涡虫的新种描述。同时,对于涡虫共附生微生物资源的报道更是寥寥无几,仅有两篇海洋涡虫来源的两株细菌Pseudovibrio hongkongens