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Nam GW, Jeong M, Heo EJ, Chang OK, Kim MG, Kwak HS, Suh SH. Quantitative microbial risk assessment of pathogenic Escherichia coli in commercial kimchi in South Korea. Food Sci Biotechnol 2021; 30:1455-1464. [PMID: 34790429 PMCID: PMC8581111 DOI: 10.1007/s10068-021-00997-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 10/06/2021] [Accepted: 10/12/2021] [Indexed: 11/30/2022] Open
Abstract
Owing to convenience, ease of preparation, and price, the consumption of commercial kimchi is gradually rising in South Korea. Here, we estimated the risk level posed by pathogenic Escherichia coli in commercial kimchi products using the quantitative microbial risk assessment (QMRA) approach to develop measures for preventing potential foodborne outbreaks from kimchi consumption. We collected 610 samples of commercial kimchi products produced in Korea, 267 kimchi samples from foreign countries imported to Korea, and 187 raw materials used in kimchi preparation, and analyzed them for contamination with pathogenic E. coli. A Predictive model was developed to observe the survival characteristics of pathogenic E. coli. A dose-response model was selected, and the risk level was estimated using @RISK software. Although a prior epidemiological study indicated the frequent occurrence of foodborne outbreaks arising from contaminated kimchi products consumed in food service facilities, we found a low probability of foodborne illness caused by pathogenic E. coli in commercial kimchi products.
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Affiliation(s)
- Gun Woo Nam
- Food Microbiology Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong 2-ro, Osong, Cheongju, Chungbuk 28159 Republic of Korea
| | - Myeongkyo Jeong
- Food Microbiology Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong 2-ro, Osong, Cheongju, Chungbuk 28159 Republic of Korea
| | - Eun Jeong Heo
- Food Microbiology Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong 2-ro, Osong, Cheongju, Chungbuk 28159 Republic of Korea
| | - Oun Ki Chang
- Hazardous Substances Analysis Division, Gwangju Regional Office of Food and Drug Safety, Gwangju, 31012 Republic of Korea
| | - Mi-Gyeong Kim
- Food Microbiology Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong 2-ro, Osong, Cheongju, Chungbuk 28159 Republic of Korea
| | - Hyo-Sun Kwak
- Food Microbiology Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong 2-ro, Osong, Cheongju, Chungbuk 28159 Republic of Korea
| | - Soo Hwan Suh
- Food Microbiology Division, National Institute of Food and Drug Safety Evaluation, Ministry of Food and Drug Safety, 187 Osongsaengmyeong 2-ro, Osong, Cheongju, Chungbuk 28159 Republic of Korea
- Present Address: Division of Viral Diseases, National Center for Immunizations and Respiratory Diseases, Centers for Disease Control and Prevention, Atlanta, GA 30333 USA
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