title: [Detection of inhibitory substances in milk using the modified reduction micromethod].
abstract: In order to rationalize work and to reduce the consumption of laboratory glassware a reduction micromethod with the bacterial stain Streptococcus thermophilus has been modified; the method is used to detect inhibitory substances in genuine, pausteurized and dried milk, and it is performed on a serological plate made from organic glass. The method is sensitive to most antibiotics used in the veterinary clinical practice. The detection sensitivity to penicillin residua ranges from 0.0015 to 0.0015 i.u. in 1 ml of milk. The method may be assessed as semi-quantitative.
mesh_terms: D000818:Animals; D000900:Anti-Bacterial Agents / Q000032:analysis*; D002417:Cattle; D008722:Methods; D008892:Milk / Q000032:analysis* / Q000382:microbiology; D013291:Streptococcus / Q000302:isolation & purification
chemical_list: D000900:Anti-Bacterial Agents
vernacular_title: Detekce inhibicních látek v mléce modifikovanou reduckcní mikrometodou.