TY - JOUR
T1 - Modeling of UV-C survival of foodborne pathogens and predicting microbial inactivation on fresh-cut 'Tommy Atkins' mango using CFD
AU - Garzon-García, Alba M.
AU - Ramos-Enríquez, José R.
AU - Ruiz-Cruz, Saúl
AU - Dussán-Sarria, Saúl
AU - Hleap-Zapata, José I.
AU - Márquez-Ríos, Enrique
AU - Del-Toro-Sánchez, Carmen L.
AU - Lobatón-García, Hugo F.
N1 - Publisher Copyright:
© 2024 Walter de Gruyter GmbH, Berlin/Boston.
PY - 2024/4/1
Y1 - 2024/4/1
N2 - Shortwave ultraviolet light (UV-C) disinfection is an emerging technology used to enhance food safety by reducing the pathogen load. Computational fluid dynamics (CFD) served as a numerical simulation tool to calculate the average radiation intensity within a disinfection chamber. The resulting CFD data was employed to estimate the UV-C inactivation kinetic parameters for Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes. Experimental procedures involved irradiating bacterial suspensions with UV-C doses ranging from 0 to 6.028 »kJ/m2. The inactivation of S. Typhimurium was described using a log-linear equation, while UV-C survival curves for E. coli O157:H7 and L. monocytogenes were best fitted to Weibull model. Subsequently, the integration of CFD simulations and kinetic parameters enabled the estimation of UV-C doses approaching 6 »kJ/m2 for the treatment of fresh-cut 'Tommy Atkins' mangoes inoculated with the mentioned microorganisms. This integrated approach partially predicted the inactivation of pathogens on the surface of mango spears.
AB - Shortwave ultraviolet light (UV-C) disinfection is an emerging technology used to enhance food safety by reducing the pathogen load. Computational fluid dynamics (CFD) served as a numerical simulation tool to calculate the average radiation intensity within a disinfection chamber. The resulting CFD data was employed to estimate the UV-C inactivation kinetic parameters for Escherichia coli O157:H7, Salmonella Typhimurium, and Listeria monocytogenes. Experimental procedures involved irradiating bacterial suspensions with UV-C doses ranging from 0 to 6.028 »kJ/m2. The inactivation of S. Typhimurium was described using a log-linear equation, while UV-C survival curves for E. coli O157:H7 and L. monocytogenes were best fitted to Weibull model. Subsequently, the integration of CFD simulations and kinetic parameters enabled the estimation of UV-C doses approaching 6 »kJ/m2 for the treatment of fresh-cut 'Tommy Atkins' mangoes inoculated with the mentioned microorganisms. This integrated approach partially predicted the inactivation of pathogens on the surface of mango spears.
KW - computational fluid dynamics
KW - foodborne pathogens
KW - fresh-cut
KW - kinetic modeling
KW - predictive microbiology
UR - http://www.scopus.com/inward/record.url?scp=85187500766&partnerID=8YFLogxK
U2 - 10.1515/ijfe-2023-0075
DO - 10.1515/ijfe-2023-0075
M3 - Artículo
AN - SCOPUS:85187500766
SN - 1556-3758
VL - 20
SP - 269
EP - 278
JO - International Journal of Food Engineering
JF - International Journal of Food Engineering
IS - 4
ER -