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  3. .博碩士學位論文
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  5. 金絲草成分之研究
 
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金絲草成分之研究

Other Title
Studies on the constituents of Pogonatherum crinitum (Thunb.) Kunth
Type
thesis
Date Issued
2006
Author(s)
陳克君
Advisor
李宗徽
Subjects
系所名稱:生藥學研究所
Abstract
金絲草 (Pogonatherum crinitum) 在傳統台灣民間用藥的使用上已行之有年,相關記載咸認其具有消炎、解熱、利尿及止血等主要功能,並已應用於尿道炎、膀胱炎、腎炎和肝炎等多種疾病的治療。過去,我們嘗試以脂多醣 (lipopolysaccharide, LPS) 刺激小鼠巨噬細胞株 (RAW 264.7) 產生大量NO之模式,對金絲草之萃取物進行篩檢,結果顯示金絲草的甲醇萃出物,在50μg/mL的濃度下,可完全抑制NO的產生,且不具任何細胞毒性。鑑於此,遂以金絲草為材料,針對其成分進行一系列的分析、分離、純化與構造解析,計分離、決定出十六個化合物,包括: 二個酚類化合物 (1, 16)、八個黃酮類化合物 (2–10)、一個雙倍半帖類化合物 (11)、一個二?類化合物 (12)、一個固醇類化合物 (13) 和二個去鎂葉綠酸鹽化合物 (14, 15)。其結構經各種光譜的解析鑑定為: 3,4-dihydroxy-cis-cinnamic acid methyl ester (1)、luteolin 6-C-β-fucopyranoside (2)、kaempferol 3-O-α-L-rhamnopyranoside (3)、luteolin 6-C-β-boivinopyranoside (4)、luteolin (5)、kaempferol (6)、luteolin 6-C-β-glucopyranoside (7)、rutin (8)、kaempferol 3-O-rutinoside (9)、6-trans-(2''-O-α-rhamnopyranosyl) ethenyl-5,7,3',4'-tetrahydroxyflavone (10)、3,7,11,15,19-pentamethyl-2 -cis-6-trans-eicosadien-l-ol (11)、trans-phytol (12)、β-sitosterol (13)、methyl pheophorbide a (14)、pheophytin a (15) 及1-(3',4' -dihydroxycinnamoyl)cyclopenta-2,3-diol (16),其中化合物4和10為新的化合物。此外,生物活性試驗的結果顯示化合物1、4和6對於脂多醣誘導小鼠巨噬細胞株產生NO有抑制效果,其半抑制濃度分別為13.81、34.29和13.22 μM。
URI
https://203.71.86.71/handle/123456789/12287
https://hdl.handle.net/11296/85u977
File(s)
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Name

C0178851.pdf

Size

26.33 MB

Format

Adobe PDF

Checksum

(MD5):7497fefbb020300a79faaead962bfbde

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