That delay, even when extra transportation time to the facility is factored in, is negated by the fact that the treatment increases shelf life, Pereira and others said.
BruhnChristine Bruhn, director of the Center for Consumer Research at the University of California-Davis, has been studying irradiation for years.
She said decades of research have shown it kills 99.999% of pathogens and 90% to 99% of decay bacteria on leafy greens.
Brendan Niemira, lead scientist of food safety and intervention technologies at the Eastern Regional Research Center operated by the U.S, Department of Agriculture, reported similar kill rates.
Niemira added that the nutritional value and sensory quality of leafy greens are not significantly affected at the low doses used for fresh produce.






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