Prediction of growth inhibition in Bacillus stearothermophilus var. calidolactis C 953 demonstrated by the example of selected antimicrobials in milk
1997
Hozova, B. | Zemanovic, J. | Sklenarova, Z. (Slovenska Technicka Univ., Bratislava (Slovakia). Chemickotechnologicka Fakulta)
The size dependence of the inhibition zone on the concentration of selected antibiotics (procaine penicillin G, ampicillin, streptomycin), cleaning agents, disinfectants and preserving agents (NaOH, HCl, Ajatin, PUR, Jodonal M, H2O2) in the artificially contaminated milk has been investigated. Also, the degree of the hydrogen peroxide destruction affected by thermal treatment (100 deg C/10 min) and by the combination of thermal treatment and storage (100 deg C/10 min+2 h/20+/-2 deg C) has been studied. The applied disk diffusion method with B. stearothermophilus var. calidolactis C 953 showed to be the most sensitive to beta-lactame antibiotics; the descruction of H2O2 was also well detectable in selected conditions.
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