A study of 50 coagulase-positive staphylococcus cultures on four Tellurite-glycine formulas shows some inhibition of these organisms by the media. This inhibition can be removed partially by altering and enriching the nitrogen source, increasing mannitol and yeast extract contents and lowering the glycine concentration. Tellurite formulas that showed the greatest inhibition with pure cultures behaved similarly when coagulase-positive staphylococci were determined from raw milk.
1Journal Paper No. J-4230 of the Iowa Agricultural and Home Economics Experiment Station, Ames, Iowa. Project No. 1421.
2This investigation was supported by research grant RG-5502, National Advisory Health Council, Public Health Service, Department of Health, Education, and Welfare.
3Present address: Department of Dairy Science, University of Arizona, Tucson.