期刊
FOOD ENGINEERING REVIEWS
卷 13, 期 3, 页码 442-453出版社
SPRINGER
DOI: 10.1007/s12393-020-09271-8
关键词
High hydrostatic pressure; Bacteria; Injury; Recovery; Mechanism; Detection
The review discusses the effects of high hydrostatic pressure on bacteria in food processing, highlighting the importance of sublethal inactivation in causing bacterial injury and the relationship between the recovery of injured bacteria and environmental conditions. Further exploration into the mechanisms of injury caused by high hydrostatic pressure on molds, yeasts, parasites, and viruses is needed.
In food processing, high hydrostatic pressure (HHP) can inactivate microbes, and the inactivation is either lethal or sublethal, depending on the intensity of HHP-induced stress. Inactivation of bacteria is a key to ensure food safety by HHP food processing. This manuscript reviews HHP-induced injury of bacteria such as Escherichia coli, Listeria monocytogenes, and (vegetative) Bacillus subtilis. The stress in the sublethal inactivation depends on HHP level, holding time, bacterial species/strain, and other environmental factors. The sublethal inactivation induces injury of bacteria, and the injured bacteria may recover under suitable conditions. The recovery behavior depends on nutrients surrounding the bacteria and the storage temperature. In the detection of HHP-injured bacteria, detection media and incubation temperature play important roles. Mechanisms involved in HHP-injured bacteria can be discussed from several viewpoints including membrane damage, reactive oxygen species, HHP resistance, ribosomes, metabolome, and colony-forming behavior. HHP-induced injury of molds, yeasts, parasites, and viruses has not been sufficiently studied.
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