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  2. .TMU Publications / 北醫出版品(教師升等著作 / 教學實踐 / 學位論文)
  3. .博碩士學位論文
  4. 100學年度
  5. 臺灣株真菌Nalanthamala psidii YMJ400、Trichobotrys effusa YMJ1179 及Alveophoma caballeroi YMJ309 醱酵液成分之研究
 
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臺灣株真菌Nalanthamala psidii YMJ400、Trichobotrys effusa YMJ1179 及Alveophoma caballeroi YMJ309 醱酵液成分之研究

Other Title
Chemical constituents from the fermented broths of
Nalanthamala psidii YMJ400, Trichobotrys effusa YMJ1179 and
Alveophoma caballeroi YMJ309 isolated in Taiwan
Type
thesis
Date Issued
2012-07-07
Author(s)
蕭惠勻
Advisor
李宗徽
Subjects
系所名稱:生藥學研究所
Publisher
生藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:李宗徽
共同指導教授:
口試委員:張芳榮;李慶國
中文關鍵字:Nalanthamala psidii、Trichobotrys effusa、Alveophoma caballeroi、細胞 毒性、抗菌活性、一氧化氮生成
Abstract
利用抑制肺癌細胞 (A549) 生長及抑制一氧化氮合成酶的活性分析平台來篩選真菌培養株,以篩檢出具有細胞毒性或抗發炎活性的真菌株,發現某些真菌株的醱酵培養液對於肺癌細胞具有毒殺作用,或抑制RAW264.7 細胞之一氧化氮的產生,而後選定Nalanthamala psidii YMJ400、Trichobotrys effusa YMJ1179 及Alveophoma caballeroi YMJ309 三株真菌進行其成分研究。接著以麥芽萃取物 (malt extract) 為培養基加以擴大培養,針對醱酵液所含代謝產物進行分析、分離與純化,計獲得17 個化合物,分別為:myxosporsidol A (1)、trichodermin (2)、myxosporsidol B (3)、O-methyldihydrobotrydial (4)、2,5-di(hydroxymethyl)furan
(5)、trichophenol A (6)、trichophenol B (7)、trichophenol C (8)、trichophenol D (9)、coriloxin (10)、zythiostromic acid A (11)、radicicol (12)、3,5-dihydroxytoluene (13)、5-(hydroxymethyl)furfural (14)、alveophomic acid (15)、α-acetylorcinol (16) 及curvulinic acid (17),其中倍半萜類化合物1、酚類化合物6–9 及酸類化合物15為新化合物。在活性試驗上,化合物2 對於肺癌細胞、口腔癌細胞 (Ca9-22)、抗藥性卵巢癌細胞 (TOV-21G-Tx) 及多重抗藥性癌細胞 (NCI/ADR-RES) 具有顯著的抑制活性,其GI50 分別為0.67、0.48、0.28 及0.35 μM,化合物12 對肺癌細胞、抗藥性卵巢癌細胞、大腸癌細胞 (HT-29) 及肝癌細胞 (SK-Hep-1) 也有顯著的抑制活性,其GI50 分別為1.43、0.68、0.95 及9.67 μM,化合物6–9 對於肺癌細胞皆具有中度抑制活性,其GI50 分別為25.61、19.32、16.19 及24.31 μM,抗菌活性試驗顯示,化合物2 對白色念珠菌 (Candida albicans)、新型隱球菌 (Cryptococcus neoformans) 及酵母菌 (Saccharomyces cerevisiae) 皆有顯著的抑菌效果,MIC 分別為2、1 及1 μg/mL,而化合物12 對此三株真菌皆有中度的抑菌效果,MIC 分別為32、16 及32 μg/mL,此外,化合物1 對於RAW264.7 細胞產生之一氧化氮具有輕微的抑制作用,其IC50 為74.63 μM。
URI
https://203.71.86.71/handle/123456789/10986

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