Lactic Acid Utilization by the Cutaneous Micrococcaceae

AUTOR(ES)

Smith, Rodney F.

RESUMO

Human cutaneous staphylococci and micrococci utilized lactic acid as an energy source on a minimal medium. Propionic acid was not utilized, but l(+)-lactic acid and pyruvic acid could replace ld-lactic acid as a substrate. Selected strains of cocci were inhibited more by the l(+) and d(−) forms of lactic acid than the balanced ld form, particularly at pH 5.6. With proper dilution of substrate, lactic acid was utilized by selected strains in the presence of 10 μg of oleic and palmitic acids per ml.

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