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  5. 木賊對Staphylococcus simulans之抗菌活性研究
 
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木賊對Staphylococcus simulans之抗菌活性研究

Other Title
The antibacterial activity of . Equisetum hiemale L.
against Staphylococcus simulans
Type
thesis
Date Issued
2007-07-13
Author(s)
吳筱婷
Advisor
梁文俐
Subjects
系所名稱:生藥學研究所
Description
學位別:碩士
語文別:中文
指導教授:梁文俐
共同指導教授:
口試委員:呂鋒州;呂車鳳
中文關鍵字:木賊;抗菌
Abstract
因著人類濫用抗生素,細菌對抗生素產生抗藥性,造成很嚴重的問題。葡萄球菌對人類和動物造成普遍性的感染,Staphylococcus simulans通常在被圈養的動物(牛和豬)身上被發現,是伺機性病原菌的一種,會造成表皮炎、耳炎和乳房炎,甚至Staphylococcus simulans也被發現在成人身上,引發骨炎、關節炎甚至的敗血症。在這項研究,我們篩選了經50%乙醇萃取的八十七種傳統中藥材對產生青黴素抗藥性Staphylococcus simulans(PRSS)進行抗菌活性檢測,使用瓊脂紙錠擴散法和連續稀釋法來判斷最小抑制濃度,結果發現木賊(Equisetum hiemale L.)具有最佳抗菌活性,對PRSS的最小抑制濃度為384 ug/ml。利用分配方式分成正己烷層、乙酸乙酯層、正丁醇層和水層,發現正己烷層表現出PRSS的最小抑制濃度為256 ug/ml,所以分離正己烷層,分離出三個具有抗Staphylococcus simulans活性的化合物。經結構鑑定與抑菌活性評估,發現CP2 (saringosterol) 抑菌效果最佳,CP3 (Aristophyll-C)次之,其對PRSS的最小抑制濃度分別達32 ug/ml、64μg/ml。在抗生素與活性成分合併方面,CP2在8 μg/ml 合併penicillin 4 μg/ml及CP3在16 μg/ml 合併penicillin 16 μg/ml對PRSS有抑制生長的效果;因此CP2、CP3在抗生物質的開發上具有相當大的潛力。
關鍵字:penicillin-reststant Staphylococcus simulans;木賊; saringosterol; Aristophyll-C; PRSS
URI
https://203.71.86.71/handle/123456789/12005
https://hdl.handle.net/11296/83wc5a
File(s)
No Thumbnail Available
Name

C0183448.pdf

Size

34.43 MB

Format

Adobe PDF

Checksum

(MD5):1a61aa77b75089f1fcb81dcb91a896bd

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