Detergent and sanitizer stresses decrease the thermal resistance of Enterobacter sakazakii in infant milk formula.
This study determined the effect of acid, alkaline, chlorine, and ethanol stresses on the thermal inactivation of Enterobacter sakazakii in infant milk formula. Unstressed or stressed cells were mixed with reconstituted powdered infant milk formula (PIMF) at temperatures between 52 and 58 degrees C for various time periods or mixed with PIMF prior to reconstitution with hot water between 50 and 100 degrees C. D- and z-values were determined using liner regression analysis. In general, detergent and sanitizer stresses decreased the thermal resistance of E. sakazakii in infant milk formula. The results of this study may be of use to regulatory agencies, manufacturers, and infant caregivers to design heating processes to eliminate E. sakazakii.
Osaili
T M
TM
Department of Nutrition and Food Technology, Faculty of Agriculture, Jordan University of Science and Technology, P.O. Box 3030 Irbid, 22110, Jordan. tosaili@just.edu.jo
Shaker
R R
RR
Olaimat
A N
AN
Al-Nabulsi
A A
AA
Al-Holy
M A
MA
Forsythe
S J
SJ
D000222:Adaptation, Physiological / Q000187:drug effects*; D015169:Colony Count, Microbial; D044083:Cronobacter sakazakii / Q000187:drug effects / Q000254:growth & development*; D003902:Detergents / Q000494:pharmacology*; D005506:Food Contamination / Q000032:analysis*; D005516:Food Microbiology; D006358:Hot Temperature; D006801:Humans; D007223:Infant; D007225:Infant Food / Q000382:microbiology*; D041943:Infant Formula; D007231:Infant, Newborn; D016014:Linear Models; D013696:Temperature
D003902:Detergents