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Study on bacteriostasis of Huangqi fermentation broth
Author(s): 
Pages: 8-10,13
Year: Issue:  2
Journal: Journal of Shanxi College of Traditional Chinese Medicine

Keyword:  黄芪发酵液体内抑菌体外抑菌;
Abstract: 目的:研究黄芪酵母菌发酵液的体外、体内抑菌活性.方法:体外实验采用滤纸片扩散法,通过测定抑菌圈直径考察黄芪发酵液对金黄色葡萄球菌、大肠杆菌、肺炎链球菌、绿脓杆菌、普通变形杆菌的体外抑菌活性;采用2倍稀释法检测黄芪发酵液对各致病菌的最小抑菌浓度(MIC);体内实验以金黄色葡萄球菌为指示菌种,观察黄芪酵母菌发酵液不同浓度(0.1 g/mL,1.0 g/mL,2.5 g/mL)灌胃给药7d对感染小鼠的死亡率.结果:体外实验结果显示:黄芪发酵液对5种致病菌均有一定抑制作用,黄芪发酵液高浓度组对致病菌具有较强的抑制作用;对金黄色葡萄球菌、大肠杆菌、肺炎链球菌、绿脓杆菌、普通变形杆菌的最小抑菌浓度分别为0.313 g/mL,0.078 g/mL,0.625 g/mL,0.313 g/mL,0.156 g/mL;体内实验研究表明:黄芪发酵液低、中、高3个浓度组均能显著降低金黄色葡萄球菌引起的小鼠死亡率,死亡率分别是65%,45%,30%,与细菌对照组死亡率90%比较,差异具有统计学意义(P<0.05,P<0.01).结论:黄芪酵母菌发酵液体外、体内对受试菌均有一定抑制作用.
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