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Park E, Oh H, Kim S, Lee J, Ha J, Choi Y, Yoon Y. Isolation of Bacillus cereus from Soft Soybean Curd and the Kinetic Behavior of B. cereus Isolates at Changing Temperatures. J Food Prot 2021; 84:1555-1559. [PMID: 34380146 DOI: 10.4315/jfp-21-026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2021] [Accepted: 05/01/2021] [Indexed: 11/11/2022]
Abstract
ABSTRACT In this study, Bacillus cereus was isolated from soft soybean curds, and a dynamic model was developed to describe the kinetic behavior of these isolates during transfer and storage. B. cereus isolates recovered from soft soybean curds were inoculated into soft soybean curd, and the levels were determined during storage at 10 to 30°C. The B. cereus counts were fitted to the Baranyi model to calculate maximum growth rate (μmax) and lag-phase duration (LPD). These kinetic parameters were then analyzed with a polynomial equation to evaluate the effects of temperature on the kinetic parameters. The developed model was validated with observed values, and the differences between predicted and observed values were determined by calculating the root mean square error (RMSE). A dynamic model was then developed with a combination of primary and secondary models to describe B. cereus growth under changing temperature conditions. B. cereus was detected in two soft soybean curd samples (5.1%) at 0.7 log CFU/g. The μmax was -0.04 to 0.47 log CFU/g/h, and the ln(LPD) was 3.94 to 0.04 h, depending on the storage temperature. The model performance was appropriate with a 0.216 RMSE and accurately described the kinetic behavior of B. cereus in soft soybean curd samples. These results suggest that B. cereus can contaminate soft soybean curds and that the models developed with the B. cereus isolates are useful for describing the kinetic behavior of B. cereus in soft soybean curd. HIGHLIGHTS
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Affiliation(s)
- Eunyoung Park
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Hyemin Oh
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Sejeong Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Jeeyeon Lee
- Department of Food and Nutrition, Dong-Eui University, Busan 47340, Korea
| | - Jimyeong Ha
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Yukyung Choi
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Yohan Yoon
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
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Kang J, Oh H, Lee Y, Lee H, Lee S, Kim S, Ha J, Choi Y, Kim Y, Seo Y, Park E, Kim H, Yoon Y. Dynamic model to describe kinetic behavior of
Listeria monocytogenes
in smoked salmon. J Food Saf 2021. [DOI: 10.1111/jfs.12925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Joohyun Kang
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Hyemin Oh
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Yewon Lee
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Heeyoung Lee
- Food Standard Research Center Korea Food Research Institute Wanju South Korea
| | - Soomin Lee
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Sejeong Kim
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Jimyeong Ha
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Yukyung Choi
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
| | - Yujin Kim
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Yeongeun Seo
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Eunyoung Park
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
| | - Hyunjung Kim
- Department of Research Group of Consumer Safety Korea Food Research Institute Wanju South Korea
| | - Yohan Yoon
- Department of Food and Nutrition Sookmyung Women's University Seoul South Korea
- Risk Analysis Research Center Sookmyung Women's University Seoul South Korea
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Ha J, Lee J, Oh H, Kim HJ, Choi Y, Lee Y, Kim Y, Lee H, Kim S, Yoon Y. Erratum to: Description of Kinetic Behavior of Pathogenic Escherichia coli in Cooked Pig Trotters under Dynamic Storage Conditions Using Mathematical Equations. Food Sci Anim Resour 2021; 41:353. [PMID: 33987555 PMCID: PMC8115005 DOI: 10.5851/kosfa.2021.e6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Affiliation(s)
- Jimyeong Ha
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Jeeyeon Lee
- Department of Food and Nutrition, Dong-eui University, Busan 47340, Korea
| | - Hyemin Oh
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Hyun Jung Kim
- Research Group of Consumer Safety, Korea Food Research Institute, Jeollabuk-do 55365, Korea.,Department of Food Biotechnology, University of Science and Technology, Daejeon 34113, Korea
| | - Yukyung Choi
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Yewon Lee
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Yujin Kim
- Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
| | - Heeyoung Lee
- Food Standard Research Center, Korea Food Research Institute, Jeollabuk-do 55365, Korea
| | - Sejeong Kim
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea
| | - Yohan Yoon
- Risk Analysis Research Center, Sookmyung Women's University, Seoul 04310, Korea.,Department of Food and Nutrition, Sookmyung Women's University, Seoul 04310, Korea
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