TY - JOUR
T1 - Comparison on inactivation of Enterobacter sakazakii, Salmonella typhimurium, and Bacillus cereus inoculated on infant formula during storage by gamma irradiation
AU - Jin, You Young
AU - Kyung, Ju Ku
AU - Park, Jiyong
AU - Park, Jonghyun
AU - Chung, Myongsoo
AU - Kwon, Kisung
AU - Chung, Kyungsook
AU - Won, Misun
AU - Kyung, Bin Song
PY - 2008
Y1 - 2008
N2 - Enterobacter sakazakii, Salmonella typhimurium, and Bacillus cereus were evaluated on inoculated infant formula by gamma irradiation treatment as a method to provide microbial safety. The infant formula inoculated with the major pathogenic bacteria was treated at irradiation dose of 0, 3, 5, and 10 kGy, respectively. After treatment, the samples were individually packaged and stored at 20°C. Microbiological data during storage represented that the populations of E. sakazakii, S. typhimurium, and B. cereus were reduced with the increase of irradiation dose by 4 to 5 log reductions. In particular, E. sakazakii, S. typhimurium, and B. cereus were eliminated at 10, 5, and 3 kGy, respectively. E. sakazakii was the most radiation-resistant, while B. cereus was the least. Our results represent that gamma irradiation below 10 kGy should eliminate the growth of the major pathogenic bacteria in infant formula during storage.
AB - Enterobacter sakazakii, Salmonella typhimurium, and Bacillus cereus were evaluated on inoculated infant formula by gamma irradiation treatment as a method to provide microbial safety. The infant formula inoculated with the major pathogenic bacteria was treated at irradiation dose of 0, 3, 5, and 10 kGy, respectively. After treatment, the samples were individually packaged and stored at 20°C. Microbiological data during storage represented that the populations of E. sakazakii, S. typhimurium, and B. cereus were reduced with the increase of irradiation dose by 4 to 5 log reductions. In particular, E. sakazakii, S. typhimurium, and B. cereus were eliminated at 10, 5, and 3 kGy, respectively. E. sakazakii was the most radiation-resistant, while B. cereus was the least. Our results represent that gamma irradiation below 10 kGy should eliminate the growth of the major pathogenic bacteria in infant formula during storage.
KW - Gamma irradiation
KW - Infant formula
KW - Pathogenic bacteria
KW - Storage
UR - http://www.scopus.com/inward/record.url?scp=56349160062&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:56349160062
SN - 1226-7708
VL - 17
SP - 861
EP - 864
JO - Food Science and Biotechnology
JF - Food Science and Biotechnology
IS - 4
ER -