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  5. 臺灣株真菌Pseudallescheria boydii NTOU2362 及 Bipolaris sp. NTOU799 醱酵液成分之研究
 
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臺灣株真菌Pseudallescheria boydii NTOU2362 及 Bipolaris sp. NTOU799 醱酵液成分之研究

Other Title
Chemical constituents from the fermented broths of
Pseudallescheria boydii NTOU2362 and Bipolaris sp. NTOU799 isolated in Taiwan
Type
thesis
Date Issued
2012-07-07
Author(s)
陳奕穎
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:宋秉鈞;林淑娟
中文關鍵字:真菌、誘導型一氧化氮合成酶
Abstract
本研究利用抑制一氧化氮生成的活性分析平台來篩選真菌培養株,期能找出具有抗發炎活性的真菌株,發現所篩選的53株真菌中,8株真菌株的醱酵培養液或菌絲體萃出物,對於RAW264.7 細胞的生成一氧化氮具有顯著的抑制作用或對於 RAW264.7 細胞具強的細胞毒性,後續選定Bipolaris sp. #NTOU799 及 Pseudallescheria boydii #NTOU2362 兩菌株進行其醱酵液成分研究。
在擴大培養後,針對所含代謝產物進行分析、分離、純化與鑑定,計獲得14個化合物,分別為﹕boydone A (1)、boydone B (2)、fusidilactones A (3)、L-mevalonolactone (4)、lactic acid (5)、ovalicin (6)、botryorhodine C (7)、botryorhodine G (8)、botryorhodine F (9)、N-(2-phenylethyl)-acetamide (10)、N-(4-hydroxyphenethyl)-acetamide (11)、bipopeptide A (12)、L-ornithine, 4-hydroxy-N5-L-phenylalanyl (13) 和 Cyclo (glycyl-L-proline) (14),其中化合物1、2、8、9 及 12為新化合物。在生物活性上,化合物 2 及 6對於肺腺癌A549細胞的生長相較於正控制組 (5-FU,GI50 = 3.6 μM),分別具中等及強的抑制活性,其生長半抑制濃度 (GI50) 分別為41.34 及 4.07 μM。
URI
https://203.71.86.71/handle/123456789/10982

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