Natural Inhibitory Characteristics of Some Irish Manufacturing Milks

Abstract
During two warm months about 56% of Irish milks tested showed thermolabile inhibition against at least one of five bacteria of species Bacillus subtilis, Sarcina lutea and Staphylococcus aureus apparently attributable to natural inhibition. The pH of a number of manufacturing milks significantly lower than normal coincided with ability to inhibit all test organisms on disc assays.