Thermal Resistance, Survival and Inactivation of Enterobacter Sakazakii (cronobacter Spp.) in Powdered and Reconstituted Infant Formula
نویسندگان
چکیده
Enterobacter sakazakii has recently been recognized as an opportunistic foodborne pathogen, and dry infant formula serves as the mode of transmission. The objectives of this study were to investigate the heat resistance, survival and inactivation under room and refrigeration temperatures storage of dry and reconstituted infant formula milk (IFM). E. sakazakii strains (eight strains) showed a wide variability in heat resistance at different temperatures (55, 60 and 63C). The D-values at 55C ranged from 1.51 to 14.83 min, at 60C from 0.17 to 2.71 min and at 63C from 0.05 to 0.88 min. The calculated z values for the studied E. sakazakii strains ranged from 3.76–10.11C. Microwave oven heating of 60-mL portions of reconstituted IFM for 40–50 s was 5 Corresponding author. TEL: +11-962-590-3333; FAX: +11-962-390-3350; EMAIL: murad@
منابع مشابه
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