TY - JOUR
T1 - Hot water shrinkage as a post-lethal intervention against listeria monocytogenes
T2 - Preliminary assessment in a turkey-based virginia ham model
AU - Delgado Suárez, Enrique Jesús
AU - Chairéz Espinosa, Aldebarán
AU - Sierra Gómez pedroso, Luz Del Carmen
AU - Rodas Suárez, Oscar
AU - Quiñones Ramírez, Elsa Irma
AU - Rubio Lozano, María Salud
N1 - Publisher Copyright:
© 2014 Wiley Periodicals, Inc.
PY - 2015/5/1
Y1 - 2015/5/1
N2 - This preliminary laboratory trial evaluated the potential of hot water shrinkage to reduce post-lethal surface contamination by Listeria monocytogenes (Lm) in a turkey-based Virginia ham model. We inoculated triplicate of ham slices (10cm2, 2-cm thick) with 105cfu/cm2 of Lm (ATCC 19114). Subsequently, they were vacuum-packaged and placed in a thermostated water bath at 75, 80, 85 and 90C for 0, 20, 25 and 30s. Treatment at 75-85C for up to 30s did not affect Lm survival, while nearly 4-log reduction was observed at 90C for 30s. The strong correlation (r=0.9685-0.9891) between results and estimated lethalities (from previous inactivation data) highlights the potential of the 90C/30s regimen as an effective post-lethal intervention. However, these results should be used with caution as they may vary under different industry conditions. Further research is needed to develop an appropriate pathogen reduction model for this process.
AB - This preliminary laboratory trial evaluated the potential of hot water shrinkage to reduce post-lethal surface contamination by Listeria monocytogenes (Lm) in a turkey-based Virginia ham model. We inoculated triplicate of ham slices (10cm2, 2-cm thick) with 105cfu/cm2 of Lm (ATCC 19114). Subsequently, they were vacuum-packaged and placed in a thermostated water bath at 75, 80, 85 and 90C for 0, 20, 25 and 30s. Treatment at 75-85C for up to 30s did not affect Lm survival, while nearly 4-log reduction was observed at 90C for 30s. The strong correlation (r=0.9685-0.9891) between results and estimated lethalities (from previous inactivation data) highlights the potential of the 90C/30s regimen as an effective post-lethal intervention. However, these results should be used with caution as they may vary under different industry conditions. Further research is needed to develop an appropriate pathogen reduction model for this process.
UR - http://www.scopus.com/inward/record.url?scp=84928182256&partnerID=8YFLogxK
U2 - 10.1111/jfs.12168
DO - 10.1111/jfs.12168
M3 - Artículo
SN - 0149-6085
VL - 35
SP - 145
EP - 153
JO - Journal of Food Safety
JF - Journal of Food Safety
IS - 2
ER -