Title
Control of Listeria monocytogenes in boned dry-cured ham by E-beam treatment
Date Issued
01 April 2020
Access level
metadata only access
Resource Type
journal article
Author(s)
Publisher(s)
Blackwell Publishing Ltd
Abstract
Boning of dry-cured hams involves additional handling which increases the risk of contamination with Listeria monocytogenes. This work studies the ability of E-beam to eliminate this pathogen from boned dry-cured ham (BDH). The destruction kinetics of four L. monocytogenes strains (S2, S4-2, S12-1, and S7-2) and L. innocua NCTC 11288 as a surrogate were determined at doses up to 3 kGy. L. innocua and L. monocytogenes S4-2 were the most radioresistant (D-value = 0.55 kGy). E-beam penetration was studied in blocks extracted from BDH and irradiated with 2–6 kGy. The bilateral treatment of 2 kGy allows the required dose (1.32 kGy) to be absorbed in the innermost part of the block to achieve the food safety objective of “zero tolerance” for this microorganism. This listericidal treatment was also confirmed in whole BDH intentionally contaminated with L. innocua. The sensory analysis of irradiated BDH showed off-odors that were imperceptible after 15 days of storage at 4°C.
Volume
40
Issue
2
Language
English
OCDE Knowledge area
Salud pública, Salud ambiental
Biología celular, Microbiología
Scopus EID
2-s2.0-85077868666
Source
Journal of Food Safety
ISSN of the container
01496085
Sponsor(s)
Consejo Nacional de Ciencia, Tecnología e Innovación Tecnológica, Grant/Award Number: 215‐2015‐FONDECYT; European Regional Development Fund; Instituto Nacional de Investigación y Tecnología Agraria y Alimentaria, Grant/Award Numbers: RTA 2017‐00027‐C03‐02, Ref. RTA 2013‐00070‐C03‐02; Universidad Complutense de Madrid, Grant/Award Number: BSCH‐UCM Nº 920276 Ref GR3/14 Funding information
This work was supported by INIA Projects (Ref. RTA 2013‐00070‐C03‐02 and RTA 2017‐00027‐C03‐02); European Found FEDER; Investigation Group of the Complutense University of Madrid (BSCH‐UCM N° 920276 Ref GR3/14); J. R. Lucas thanks the National Council for Science, Technology and Technological Innovation (CONCYTEC) of the Peruvian government (Contract N° 215‐2015‐FONDECYT).
Sources of information:
Directorio de Producción Científica
Scopus