Journal
JOURNAL OF FOOD PROTECTION
Volume 66, Issue 9, Pages 1595-1598Publisher
INT ASSOC FOOD PROTECTION
DOI: 10.4315/0362-028X-66.9.1595
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The survival of Escherichia coli O157:H7, Listeria monocytogenes, and Salmonella was studied in apple, orange, pineapple, and white grape juice concentrates and banana puree. Pouches of juice concentrate or puree were inoculated with pathogens at a level >10(3) CFU/g and stored at -23degreesC (- 10degreesF). Pathogen survival was monitored at 6 and 24 h, once a week for four consecutive weeks, and biweekly thereafter until 12 weeks. When pathogens were not detectable by direct plating, samples were enriched in universal preenrichment broth for 72 It and plated on selective media. Results showed that E. coli O157:H7, L. monocytogenes, and Salmonella were recoverable from all five concentrates through 12 weeks of storage at -23degreesC.
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