Premium
RECOVERY OF SALMONELLAE FROM IRRADIATED AND UNIRRADIATED FOODS
Author(s) -
LICCIARDELLO J. J.,
NICKERSON J. T. R.,
GOLDBLITH S. A.
Publication year - 1970
Publication title -
journal of food science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.772
H-Index - 150
eISSN - 1750-3841
pISSN - 0022-1147
DOI - 10.1111/j.1365-2621.1970.tb04827.x
Subject(s) - agar , salmonella , brilliant green , tryptic soy broth , food science , microbiology and biotechnology , yeast extract , chemistry , inoculation , biology , bacteria , fermentation , genetics , organic chemistry , immunology
SUMMARY Maximum recovery of salmonellae from artificially contaminated irradiated and unirradiated foods was usually obtained on tryptic soy yeast extract agar, a nonselective medium. Recovery on various selective media depended, in general, upon the serotype and the substrate. Irradiated cells were definitely inhibited on Salmonella‐Shigella agar or desoxycholate citrate agar, but only slightly, if at all, on brilliant green, bismuth sulfite or MacConkey agars. The highest count of irradiated cells of Salmonella newport by the MPN method was obtained with tetra‐thionate broth, yet this medium was inhibitory to Salmonella oranienburg and Salmonella heidelberg. In this latter situation, pre‐enrichment in nutrient broth prior to inoculation into tetra‐thionate broth was beneficial.