• Title/Summary/Keyword: E coli O157%3AH7

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Enterobacteriaceae and Related Microorganisms Isolated from Rump of Raw Beefs

  • Kwon, Eun-Ah;Kim, Myung-Hee
    • Food Science and Biotechnology
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    • v.17 no.6
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    • pp.1368-1371
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    • 2008
  • In this study, 50 rump samples of raw beef obtained from local Korean supermarkets were analyzed to survey microbial distributions. As results, mesophilic microorganisms ranged from $(1.4{\pm}0.01){\times}10^2$ to $(1.6{\pm}0.05){\times}10^5\;CFU/g$, and total coliforms ranged from 0 to $(1.3{\pm}0.04){\times}10^4\;CFU/g$. Major foodborne pathogens, including Listeria monocytogenes, Escherichia coli O157:H7, and Salmonella spp., were not found among the samples. However, Staphylococcus aureus was isolated with 4% frequency. Other isolated microorganisms included Enterobacter amnigenus (4%), Enterobacter cloacae (24%), E. coli (24%), Listeria innocua (8%), Staphylococcus saprophyticus (56%), Staphylococcus xylosus (10%), and Staphylococcus warneri (8%).

Safety Evaluation of Microbiological and Aflatoxin of Traditional Dried Persimmon (곶감의 미생물 및 aflatoxin에 대한 안전성 평가)

  • Seo, Min-Kyoung;Choi, Song-Yi;Lee, Kyoung Ah;Kim, Jung-Sook;Chung, Duck-Hwa;Lee, Soo-Hyung;Park, Ki-Hwan;Kim, Won-Il;Ryu, Jae-Gee;Kim, Hwang-Yong;Kim, Se-Ri
    • Journal of Food Hygiene and Safety
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    • v.29 no.4
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    • pp.260-267
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    • 2014
  • To evaluate microbiological and aflatoxin safety on traditional dried persimmon, a total of 315 samples were collected from 105 farms. The collected samples were assessed on aflatoxin and microorganisms (Aerobic plate count, coliform count, Escherichia coli, Escherichia coli O157:H7, Salmonella spp., Staphylococcus aureus, Listeria monocytogenes, Bacillus cereus). The the APC of sliced dried persimmon, dried persimmon, and semi dried persimmon were $3.93{\pm}0.96$, $2.12{\pm}0.93$, and $1.50{\pm}1.08{\log}\;CFU/g$, respectively. S. aureus was detected in 40.0% of sliced dried persimmon, 29.5% of dried persimmon, and 23.5% of semi dried persimmon. E. coli recovered from dried persimmon and semi dried persimmon was 6.6%, and 2.9%, respectively. However, E. coli O157:H7, Salmonella spp., and L. monocytogenes were not detected. According to the result of aflatoxin by ELISA and UPLC, aflatoxin was not detected in any sample. These data suggested that safety management system should be introduce to the farms producing traditional dried persimmon to enhance the safety of traditional dried persimmon.