DESTRUCTION OF VARIOUS KINDS OF MYCOBACTERIA IN MILK BY PASTEURIZATION.
Various strains of unclassified mycobacteria, Mycobacterium tuberculosis (including H37Rv strains), M. bovis, M. avium, M. fortuitum, and bacille Calmette-Guerin, were exposed to the temperature and time of pasteurization in skim milk in test tubes. Of the 195 strains tested, there were a few surviving colonies among 6 of 33 skotochromogens, 1 of 26 photochromogens, 10 of 79 nonchromogens, and 1 of 9 rapid growers. Subcultures of the surviving colonies failed to resist the pasteurization tests on subsequent trials.
D000818:Animals; D005506:Food Contamination; D008892:Milk; D009161:Mycobacterium; D009163:Mycobacterium bovis; D009169:Mycobacterium tuberculosis; D061352:Pasteurization; D012106:Research; D013242:Sterilization
EXPERIMENTAL LAB STUDY; FOOD CONTAMINATION; MILK; MYCOBACTERIUM; MYCOBACTERIUM BOVIS; MYCOBACTERIUM TUBERCULOSIS; STERILIZATION