痤疮丙酸杆菌
表皮葡萄球菌
金黄色葡萄球菌
微生物学
丙酸杆菌
葡萄球菌
碱度
化学
细菌
生物
有机化学
遗传学
作者
Hans Christian Körting,A. Lukacs,Nadine A. Vogt,Jan Urban,W. Ehret,G Ruckdeschel
出处
期刊:PubMed
日期:1992-06-01
卷期号:193 (1): 78-90
被引量:49
摘要
A cutaneous isolate of Staphylococcus epidermidis, Staphylococcus aureus and Propionibacterium acnes was grown in continuous culture at varying pH-values ranging from 5.0 to 8.5. In terms of the specific growth rate as well as the bacterial density during the plateau phase there were remarkable differences. In particular, Propionibacterium acnes grew much better in the pH 6.0 to 7.0 range than in a more acidic or alkaline milieu. Staphylococcus epidermidis resembled Staphylococcus aureus showing no major difference at pH 5.5 and 7.0. These findings substantiate the hypothesis that minor changes of the pH in the pH 5.5 to pH 6.0 range as to be induced by chemically neutral or alkaline skin cleansers on the human skin surface can increase the number of propionibacteria but not staphylococci remarkably due to the relative alkalinity by itself.
科研通智能强力驱动
Strongly Powered by AbleSci AI