El - Dahshan, A., Shalaby, M., Abdel - Gawwad, A., Amin, H. (2014). EFFECT OF MICROWAVE EXPOSURE COMPARED WITH CONVENTIONAL HEAT TREATMENTS ON Escherichia coli O157:H7 AND Salmonella typhimurium IN CHICKEN BURGER AND MEAT SAUSAGE. Journal of Food and Dairy Sciences, 5(2), 153-168. doi: 10.21608/jfds.2014.52754
Amalika D. El - Dahshan; M. T. Shalaby; A. I. Abdel - Gawwad; Heba E. Amin. "EFFECT OF MICROWAVE EXPOSURE COMPARED WITH CONVENTIONAL HEAT TREATMENTS ON Escherichia coli O157:H7 AND Salmonella typhimurium IN CHICKEN BURGER AND MEAT SAUSAGE". Journal of Food and Dairy Sciences, 5, 2, 2014, 153-168. doi: 10.21608/jfds.2014.52754
El - Dahshan, A., Shalaby, M., Abdel - Gawwad, A., Amin, H. (2014). 'EFFECT OF MICROWAVE EXPOSURE COMPARED WITH CONVENTIONAL HEAT TREATMENTS ON Escherichia coli O157:H7 AND Salmonella typhimurium IN CHICKEN BURGER AND MEAT SAUSAGE', Journal of Food and Dairy Sciences, 5(2), pp. 153-168. doi: 10.21608/jfds.2014.52754
El - Dahshan, A., Shalaby, M., Abdel - Gawwad, A., Amin, H. EFFECT OF MICROWAVE EXPOSURE COMPARED WITH CONVENTIONAL HEAT TREATMENTS ON Escherichia coli O157:H7 AND Salmonella typhimurium IN CHICKEN BURGER AND MEAT SAUSAGE. Journal of Food and Dairy Sciences, 2014; 5(2): 153-168. doi: 10.21608/jfds.2014.52754
EFFECT OF MICROWAVE EXPOSURE COMPARED WITH CONVENTIONAL HEAT TREATMENTS ON Escherichia coli O157:H7 AND Salmonella typhimurium IN CHICKEN BURGER AND MEAT SAUSAGE
Food Industries Depart. ,Fac. of Agric. ,Mansoura Univ.,Egypt.
Abstract
Escherichia coli O157:H7 and Salmonella typhimurium are two of the most important foodborne pathogens causing gastroenteritis all around the world . Two samples were taken from chicken burger and meat sausage samples ,which prepared in a manner similar to commercial one . Then, samples inoculated with approximately106-107cfu/gof E. coli O157:H7 and107-108cfu/g of S. typhimurium then, cooked by microwaving , grilling , frying and boiling . Following exposures to heat treatments, viable counts and temperature measurements were immediately performed.
Elimination of E. coliO157:H7 inoculated onto chicken burger was observed after microwaving, grilling, frying and boiling exposure for 40 sec., 7 min., 2.5 min. and 1.5min. , respectively and after 35 sec., 8 min., 2 min., and 2 min., for meat sausage samples, respectively. S. typhimurium inoculated onto chicken burger was undetectable after microwaving, grilling, frying and boiling for 35 sec., 7 min., 1.5 min. and 1.2 min., respectively, and after 30 sec., 6 min., 1.5 min., and 1min., for meat sausage samples, respectively . This study showed that the lowest temperature degree at which elimination of E. coli O157:H7 was realized by microwave heating at 74°C for 40sec. and 66.6°C for 35sec. for both chicken burger and meat sausage. As for S. typhimurium, it was 65°C for 35 and 30 sec. for both chicken burger and meat sausage samples, respectively.
This study also showed that E. coliO157:H7 was more heat resistant than S. typhimurium under the same conditions.
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