Impact of Moderate Heat, Carvacrol, and Thymol Treatments on the Viability, Injury, and Stress Response of Listeria monocytogenes
Joint Authors
Palop, Alfredo
Guevara, L.
Antolinos, V.
Periago, P. M.
Source
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-10-11
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
The microbial safety and stability of minimally processed foods are based on the application of combined preservative factors.
Since microorganisms are able to develop adaptive networks to survive under conditions of stress, food safety may be affected, and therefore understanding of stress adaptive mechanisms plays a key role in designing safe food processing conditions.
In the present study, the viability and the sublethal injury of Listeria monocytogenes exposed to moderate heat (55°C) and/or essential oil compounds (carvacrol and thymol, 0.3 mM) treatments were studied.
Synergistic effects were obtained when combining mild heat (55°C) with one or both essential oil compounds, leading to inactivation kinetics values three to four times lower than when using heat alone.
All the treatments applied caused some injury in the population.
The injury levels ranged from around 20% of the surviving population under the mildest conditions to more than 99.99% under the most stringent conditions.
Protein extracts of cells exposed to these treatments were analysed by two-dimensional gel electrophoresis.
The results obtained revealed that stressed cells exhibited differential protein expression to control cells.
The proteins upregulated under these stressing conditions were implicated, among other functions, in stress response, metabolism, and protein refolding.
American Psychological Association (APA)
Guevara, L.& Antolinos, V.& Palop, Alfredo& Periago, P. M.. 2015. Impact of Moderate Heat, Carvacrol, and Thymol Treatments on the Viability, Injury, and Stress Response of Listeria monocytogenes. BioMed Research International،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1055907
Modern Language Association (MLA)
Guevara, L.…[et al.]. Impact of Moderate Heat, Carvacrol, and Thymol Treatments on the Viability, Injury, and Stress Response of Listeria monocytogenes. BioMed Research International No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1055907
American Medical Association (AMA)
Guevara, L.& Antolinos, V.& Palop, Alfredo& Periago, P. M.. Impact of Moderate Heat, Carvacrol, and Thymol Treatments on the Viability, Injury, and Stress Response of Listeria monocytogenes. BioMed Research International. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1055907
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1055907