The effect of short-time microwave exposures on Escherichia coli O157:H7 inoculated onto chicken meat portions and whole chickens
Loading...
Date
Authors
Apostolou, I.
Papadopoulou, C.
Levidiotou, S.
Ioannides, K.
Journal Title
Journal ISSN
Volume Title
Publisher
Abstract
Type
Type of the conference item
Journal type
peer-reviewed
Educational material type
Conference Name
Journal name
Int J Food Microbiol
Book name
Book series
Book edition
Alternative title / Subtitle
Description
Small portions of fresh chicken breasts weighting 20 g each and fresh whole chickens, weighting on average 1310 g each, were inoculated with Escherichia coli O157:H7 (10(5)-10(6) cfu/g) and cooked, using two different domestic microwave ovens at full power. The chicken portions were heated for 5, 10, 15, 20, 25, 30, and 35 s and the whole chickens for 22 min. Following exposures, viable counts and temperature measurements were performed. Although the chicken breast portions looked well-cooked after 30 s of MW heating at a mean end-point surface temperature of 69.8 degrees C, a mean concentration of 83 cfu/g E. coli O157:H7 cells was recovered. Elimination of E. coli O157:H7 cells occurred only after 35 s of MW exposure at 73.7 degrees C. When whole chickens were thoroughly cooked by MW heating, the final subsurface temperatures, measured in the thighs and wings, ranged from 60.2 degrees C to 92 degrees C and viable cells of E. coli O157:H7 were recovered from all samples of whole chicken. The results indicate that short time exposures of chicken portions to microwave heating do not eliminate E. coli O157:H7.
Description
Keywords
Animals, Chickens/*microbiology, Colony Count, Microbial, Consumer Product Safety, Escherichia coli O157/*growth & development/*radiation effects, *Food Irradiation, Food Microbiology, Hot Temperature, Meat/*microbiology, *Microwaves, Time Factors
Subject classification
Citation
Link
http://www.ncbi.nlm.nih.gov/pubmed/15878411
http://ac.els-cdn.com/S0168160504005318/1-s2.0-S0168160504005318-main.pdf?_tid=f9a5c60598d28ebcdaa291c4f2a570c4&acdnat=1332845698_2e0f3be06a9f5f004437a34664444787
http://ac.els-cdn.com/S0168160504005318/1-s2.0-S0168160504005318-main.pdf?_tid=f9a5c60598d28ebcdaa291c4f2a570c4&acdnat=1332845698_2e0f3be06a9f5f004437a34664444787
Language
en
Publishing department/division
Advisor name
Examining committee
General Description / Additional Comments
Institution and School/Department of submitter
Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών Υγείας. Τμήμα Ιατρικής