Role of oxygen radicals in the bacteriostatic effect of whey and production of bacterial growth by free radical scavengers
- 1 February 1985
- journal article
- research article
- Published by Cambridge University Press (CUP) in Journal of Dairy Research
- Vol. 52 (1) , 149-157
- https://doi.org/10.1017/s0022029900023979
Abstract
SUMMARY: The involvement of toxic oxygen intermediates in the bacteriostatic effect of milk was determined by producing bacterial growth curves using turbidimetry in the presence and absence of oxygen radical-scavenging substances. Using whey as substrate, catalase, haemoglobin combined with ascorbic acid and xanthine oxidase inhibitors all provided protection against oxygen toxicity for a strain ofStaphylococcus aureusand ofStreptococcus agalactiae. Superoxide dismutase and mannitol were less effective. This was evident in whey alone and in the presence of oxygen radicals produced exogenously by the t-butylhydroperoxide, H2O2and xanthine/xanthine oxidase systems.Keywords
This publication has 25 references indexed in Scilit:
- Heme-iron and ecology of Escherichia coli within the porcine gutComparative Immunology, Microbiology and Infectious Diseases, 1983
- AN APPROACH TO FREE RADICALSThe Lancet, 1983
- Superoxide Radical: An Endogenous ToxicantAnnual Review of Pharmacology and Toxicology, 1983
- Inactivation of biologically active DNA by γ-ray-induced superoxide radicals and their dismutation products singlet molecular oxygen and hydrogen peroxideBiochimica et Biophysica Acta (BBA) - Nucleic Acids and Protein Synthesis, 1975
- Effects of superoxide radicals on myoblast growth and differentiationBiochemical and Biophysical Research Communications, 1974
- IODINATING ABILITY OF VARIOUS LEUKOCYTES AND THEIR BACTERICIDAL ACTIVITYThe Journal of Experimental Medicine, 1973
- The role of superoxide and singlet oxygen in lipid peroxidation promoted by xanthine oxidaseBiochemical and Biophysical Research Communications, 1973
- Bacterial Inhibitors in Milk and other Biological FluidsNature, 1967
- Occurrence of variants sensitive to agglutinins and to lactoperoxidase in a lactenin-resistant strain ofStreptococcus lactisJournal of Dairy Research, 1963
- The catalytic decomposition of hydrogen peroxide by iron saltsProceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences, 1934