| Microbial stress response in minimal processing. | |
| | |
MedLine Citation:
|
PMID: 10488845 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
|
"Bacteria have evolved adaptive networks to face the challenges of changing environments and to survive under conditions of stress. Therefore, the efficiencies of inactivation and preservation methods need to be assessed, especially with regard to the enormous potential of food pathogens to adapt to a wide variety of stress conditions. All adaptive responses, whether to changing nutrients or to various stresses encountered in minimal processing, involve a series of genetic switches that control the metabolic changes taking place. A common regulatory mechanism involves the modification of sigma (sigma) factors whose primary role is to bind to core RNA polymerase conferring promoter specificity directing expression of specialty regulons involved in heat-shock response, the chemotactic response, sporulation, and general stress response. Examples of the latter regulon in Gram-positive bacteria (the sigmaB regulon) and in Gram-negative bacteria (the RpoS regulon) will be discussed in more detail. Cellular adaptive mechanisms to starvation, cold shock, heat shock, (weak) acids, high osmolarity and high hydrostatic pressure will be described and their significance in food preservation and safety will be discussed." |
| | |
Authors:
|
T Abee; J A Wouters |
Related Documents
:
|
320725 - Heat illness. iii. acclimatization. 17484155 - Clinical effectiveness of two different toothbrushes in the elderly. 21783875 - Behavioural and gill histopathological effects of acute exposure to sodium chloride in ... 16541685 - Inactivation of microorganisms in milk and apple cider treated with ultrasound. 17965325 - Using the near-infrared system to sort various beef middle and end muscle cuts into ten... 3199115 - Efficacy of two formulations of bacillus thuringiensis var. israelensis (h-14) against ... |
Publication Detail:
|
Type: Journal Article; Review |
Journal Detail:
|
Title: International journal of food microbiology Volume: 50 ISSN: 0168-1605 ISO Abbreviation: Int. J. Food Microbiol. Publication Date: 1999 Sep |
Date Detail:
|
Created Date: 1999-10-20 Completed Date: 1999-10-20 Revised Date: 2004-11-17 |
Medline Journal Info:
|
Nlm Unique ID: 8412849 Medline TA: Int J Food Microbiol Country: NETHERLANDS |
Other Details:
|
Languages: eng Pagination: 65-91 Citation Subset: IM |
Affiliation:
|
Department of Food Technology and Nutritional Sciences, Wageningen, The Netherlands. |
Export Citation:
|
APA/MLA Format Download EndNote Download BibTex |
| MeSH Terms | |
Descriptor/Qualifier:
|
Adaptation, Physiological Bacteria / genetics* DNA-Directed RNA Polymerases / metabolism Food Handling / methods* Food Microbiology* Gene Expression Regulation, Bacterial Hydrogen-Ion Concentration Osmolar Concentration Sigma Factor / metabolism |
| Chemical | |
Reg. No./Substance:
|
0/Sigma Factor; EC 2.7.7.6/DNA-Directed RNA Polymerases |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
Previous Document: Food microbiology: the challenges for the future.
Next Document: The relationship between acid stress responses and virulence in Salmonella typhimurium and Listeria ...