Document Detail


Pulsed light treatment for the inactivation of selected pathogens and the shelf-life extension of beef and tuna carpaccio.
MedLine Citation:
PMID:  22795799     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
The efficacy of pulsed light to improve the safety of carpaccio has been investigated. Beef and tuna slices were superficially inoculated with approximately 3logcfu/cm(2) of Listeria monocytogenes, Escherichia coli, Salmonella Typhimurium and Vibrio parahaemolyticus. Fluences of 0.7, 2.1, 4.2, 8.4 and 11.9J/cm(2) were assayed. Colour, sensory and shelf-life studies were carried out. Treatments at 8.4 and 11.9J/cm(2) inactivated the selected pathogens approximately by 1logcfu/cm(2), although they modified the colour parameters and had a negative effect on the sensory quality of the product. The raw attributes were not affected by fluences of 2.1 and 4.2J/cm(2) immediately after the treatment, although changes were observed during storage. The inactivation obtained with these fluences was lower than 1logcfu/cm(2), which may not be negligible in case of cross-contamination at a food plant or at a food service facility. Pulsed light showed a greater impact on the sensory quality of tuna carpaccio compared to beef. None of the fluences assayed extended the shelf-life of either product.
Authors:
Eva Hierro; Monica Ganan; Elvira Barroso; Manuela Fernández
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-7-2
Journal Detail:
Title:  International journal of food microbiology     Volume:  -     ISSN:  1879-3460     ISO Abbreviation:  -     Publication Date:  2012 Jul 
Date Detail:
Created Date:  2012-7-16     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8412849     Medline TA:  Int J Food Microbiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2012 Elsevier B.V. All rights reserved.
Affiliation:
Departamento de Nutrición, Bromatología y Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Complutense, 28040 Madrid, Spain.
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