Quantifying the Reduction in Potential Health Risks by Determining the Sensitivity of Poliovirus Type 1 Chat Strain and Rotavirus SA-11 to Electron Beam Irradiation of Iceberg L
Por:
Espinosa A.C., Jesudhasan P., Arredondo R., Cepeda M., Mazari-Hiriart M., Mena K.D., Pillai S.D.
Publicada:
1 feb 2012
Resumen:
Fresh produce, such as lettuce and spinach, serves as a route of food-borne illnesses. The U.S. FDA has approved the use of ionizing irradiation up to 4 kGy as a pathogen kill step for fresh-cut lettuce and spinach. The focus of this study was to determine the inactivation of poliovirus and rotavirus on lettuce and spinach when exposed to various doses of high-energy electron beam (E-beam) irradiation and to calculate the theoretical reduction in infection risks that can be achieved under different contamination scenarios and E-beam dose applications. The D-10 value (dose required to reduce virus titers by 90%) (standard error) of rotavirus on spinach and lettuce was 1.29 (+/- 0.64) kGy and 1.03 (+/- 0.05) kGy, respectively. The D-10 value (standard error) of poliovirus on spinach and lettuce was 2.35 (+/- 0.20) kGy and 2.32 (+/- 0.08) kGy, respectively. Risk assessment of data showed that if a serving (similar to 14 g) of lettuce was contaminated with 10 PFU/g of poliovirus, E-beam ir
Filiaciones:
Espinosa A.C.:
Univ Nacl Autonoma Mexico, Lab Ecol Quim, Inst Ecol, Mexico City 04510, DF, Mexico
Jesudhasan P.:
National Center for Electron Beam Research, Food Safety and Environmental Microbiology Program, Texas A and M University, College Station, TX, United States
Arredondo R.:
Univ Nacl Autonoma Mexico, Lab Ecol Quim, Inst Ecol, Mexico City 04510, DF, Mexico
Cepeda M.:
National Center for Electron Beam Research, Food Safety and Environmental Microbiology Program, Texas A and M University, College Station, TX, United States
Mazari-Hiriart M.:
Univ Nacl Autonoma Mexico, Lab Ecol Quim, Inst Ecol, Mexico City 04510, DF, Mexico
Mena K.D.:
University of Texas Health Science Center at Houston, School of Public Health, El Paso Regional Campus, El Paso, TX, United States
Pillai S.D.:
National Center for Electron Beam Research, Food Safety and Environmental Microbiology Program, Texas A and M University, College Station, TX, United States
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