Modeling the survival of Salmonella on whole cucumbers as a function of temperature and relative humidity

نویسندگان

چکیده

Recent multistate outbreaks of salmonellosis associated with fresh cucumbers underscore the importance understanding Salmonella behavior on under different conditions. This study developed mathematical models to predict survival four-strain cocktail whole at temperature and relative humidity (RH) The strains were Newport H1275 Stanley H0558 (sprout outbreaks), Montevideo G4639 (tomato outbreak), Saintpaul 02-517-1 (cantaloupe outbreak). Inoculated placed in desiccators containing saturated salt solution create controlled RH environments (~15, 50, 100% RH) 7, 14, 21 °C, enumerated time intervals ranging from 0 240 h. Predictive using Baranyi Roberts equation as a primary model estimated kinetic parameters fitted into polynomial for secondary models. Reduced equations which describe maximum death rate log reduction cucumber function had high R2 values (>0.95). Validation results verified performance reliability predictive this will be useful future microbial risk assessments predictions manage cucumbers.

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ژورنال

عنوان ژورنال: Food Microbiology

سال: 2021

ISSN: ['0740-0020', '1095-9998']

DOI: https://doi.org/10.1016/j.fm.2021.103840