期刊
JOURNAL OF DAIRY SCIENCE
卷 104, 期 11, 页码 11348-11367出版社
ELSEVIER SCIENCE INC
DOI: 10.3168/jds.2021-20591
关键词
Cronobacter spp; powdered infant formula; source tracking; resistant; control
资金
- National Natural Science Foundation of China, Beijing, China [31871828]
- National Key Research and Development Program of China, Beijing, China [2018YFE0120500]
Cronobacter genus includes food-borne pathogens that can cause severe infections in infants, with a high mortality rate. Advanced detection technology and analysis of high-frequency species from different sources can aid in targeted control of Cronobacter. The bacteria's resistance to environmental stresses and the development of new control techniques highlight the importance of strict monitoring and prevention throughout food processing and storage.
Members of the Cronobacter genus include food-borne pathogens that can cause infections in infants, with a mortality rate as high as 40 to 80%. The high fatality rate of Cronobacter and its isolation from numerous types of food, especially from powdered infant formula, demonstrate the serious nature of this organism. The source tracking of Cronobacter spp. and the analysis of high-frequency species from different sources are helpful for a more targeted control. Furthermore, the persistence during food processing and storage may be attributed to strong resistance of Cronobacter spp. to environment stresses such as heat, pH, and desiccation. There are many factors that support the survival of Cronobacter spp. in harsh environments, such as some genes, regulatory systems, and biofilms. Advanced detection technology is helpful for the strict monitoring of Cronobacter spp. In addition to the traditional heat treatment, many new control techniques have been developed, and the ability to control Cronobacter spp. has been demonstrated. The control of this bacteria is required not only during manufacture, but also through the selection of packaging methods to reduce postprocessing contamination. At the same time, the effect of inactivation methods on product quality and safety must be considered. This review considers the advances in our understanding of environmental stress response in Cronobacter spp. with special emphasis on its implications in food processing.
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