title: A note on an antimicrobial agent in disc paper and a modified assay procedure for detecting antimicrobials in milk.
abstract: Commercially available disc paper used for antibiotic sensitivity tests was shown to contain an unidentified, water-soluble agent inhibitory to Bacillus stearothermophilus which gave false positive results in an antimicrobial assay for milk. The agent however, was found to be inactive against a range of common pathogenic bacteria. It was easily removed by washing the discs in distilled water before use.
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000032:analysis*; D001411:Geobacillus stearothermophilus / Q000187:drug effects*; D008828:Microbiological Techniques; D008892:Milk / Q000032:analysis*
chemical_list: D000900:Anti-Bacterial Agents