当前位置: 首页 > 范文大全 > 优秀范文 >

赤芝水提取物中的三萜类成分

发布时间:2022-03-25 08:20:37 | 浏览次数:


打开文本图片集

[摘要] 采用硅胶、ODS、Sephadex LH-20、HPLC等色谱技术手段,从赤芝水提物中分离得到1个新的灵芝三萜酸和18个已知类似物。利用理化性质和波谱数据,鉴定新化合物为2β-acetoxy-3β,25-dihydroxy-7,11,15-trioxo-lanost-8-en-26-oic acid (1)。通过与文献数据比较,已知化合物分别鉴定为ganoderic acid H (2),12β-acetoxy-3β,7β-dihydroxy-11,15,23-trioxo-lanost-8,16-dien-26-oic acid (3), ganoderenic acid D (4),ganoderic acid C1 (5),ganoderic acid G (6),3β,7β-dihydroxy-11,15,23-trioxo-lanost-8,16-dien-26-oic acid (7),ganoderic acid B (8),ganoderic acid C6 (9),3β,15α-dihydroxy-7,11,23-trioxo-lanost-8,16-dien-26-oic acid (10),ganoderic acid A (11),ganolucidic acid A (12),lucidenic acid E2 (13),lucidenic acid N (14),lucidenic acid P (15), lucidenic acid B (16),lucidenic acid A (17),lucidenic acid C (18),lucidenic acid L (19)。虽然化合物2~19在赤芝中已经报道,但是化合物1是新化合物。因此,该研究进一步丰富了赤芝的化学成分,尤其是填补了赤芝传统水煎剂化学成分研究的空白。

[关键词] 赤芝; 三萜酸; 灵芝属; 化学成分

[Abstract] A new triterpenoid and 18 analogues were isolated from the water extract of Ganoderma lucidum by column chromatographic techniques, including silica gel, ODS, Sephadex LH-20, and HPLC. The new compound was elucidated as 2β-acetoxy-3β,25-dihydroxy-7,11,15-trioxo-lanost-8-en-26-oic acid on the basis of analyses of extensive spectroscopic data and its physicochemical properties. Comparison of NMR data with those reported in literature, the known analogues were determined as ganoderic acid H (2), 12β-acetoxy-3β,7β-dihydroxy-11,15,23-trioxo-lanost-8,16-dien-26-oic acid (3), ganoderenic acid D (4),ganoderic acid C1 (5),ganoderic acid G (6),3β,7β-dihydroxy-11,15,23-trioxo-lanost-8,16-dien-26-oic acid (7),ganoderic acid B (8),ganoderic acid C6 (9),3β,15α-dihydroxy-7,11,23-trioxo-lanost-8,16-dien-26-oic acid (10),ganoderic acid A (11),ganolucidic acid A (12),lucidenic acid E2 (13),lucidenic acid N (14),lucidenic acid P (15), lucidenic acid B (16),lucidenic acid A (17),lucidenic acid C (18),and lucidenic acid L (19), respectively. Compound 1 is new compound and compounds 2-19 have been reported from G. lucidum. The present study eiches the knowledge of the chemical constituent of G. lucidum and completes chemical investigation of water decoction that is traditional use of G. lucidum.

[Key words] Ganoderma lucidum; triterpenoid acids; Ganoderma; chemical constituents

赤芝Ganoderma lucidum (Leyss. exFr) Karst.系擔子菌纲多孔菌科灵芝属大型真菌。赤芝是名贵滋补类中药材,在我国有悠久的药用历史。《神农本草经》记载其具有补中益气、扶正固本、滋补强壮之功效。《本草纲目》亦将其列为上品。自从20世纪80年代灵芝酸A(ganoderic acid A)和灵芝酸B(ganoderic acid B)被报道以来,国内外学者对灵芝的化学成分和生物活性进行了广泛的研究。三萜是灵芝的主要次生代谢成分也是灵芝重要生物活性物质[1]。灵芝因为显示广泛的生物活性,如抗肿瘤[2]、保肝[3]、抗高血压[4]、抑制高血糖[5],抗HIV-1蛋白酶[6]、抑制血小板聚集[7]、抑制NO释放[8]、抗氧化[9]等活性,因此其相关的药效物质研究也倍受关注,三萜就是其中重要的一类。为了进一步丰富灵芝三萜类成分研究及寻找活性分子,本课题组对赤芝水提物中的三萜成分进行了系统的化学成分研究,经多种色谱技术和结构鉴定手段,从中分离和鉴定1个新的灵芝三萜(1)和18个已知类似物(2~19)。

推荐访问: 提取物 成分 赤芝水
本文标题:赤芝水提取物中的三萜类成分
链接地址:http://www.yzmjgc.com/youxiufanwen/2022/0325/36472.html

版权声明:
1.赢正文档网的资料来自互联网以及用户的投稿,用于非商业性学习目的免费阅览。
2.《赤芝水提取物中的三萜类成分》一文的著作权归原作者所有,仅供学习参考,转载或引用时请保留版权信息。
3.如果本网所转载内容不慎侵犯了您的权益,请联系我们,我们将会及时删除。

版权所有:赢正文档网 2010-2024 未经授权禁止复制或建立镜像[赢正文档网]所有资源完全免费共享

Powered by 赢正文档网 © All Rights Reserved.。粤ICP备19088565号