Effects of eleven different nonthermal hurdles of UV-C with
antimicrobial wash against Salmonella on tomato as a model produce
has been evaluated and their potential application in post
harvest processing, as a replacement for current chlorine based
washing treatment, has been presented. UV-C is a simple inexpensive
FDA approved method of surface decontamination while all
antimicrobial compounds used in the study are GRAS. Among test
organic acids, 1% LA, 1% CA and all binary formulations of acids
coupling with UV-C indicated strong inactivation. Seven integrated
treatment strategies, combining low dose UV-C with HEN, 3% HP,
and the test organic acids excluding 1% AA and MA, achieved higher
log reduction for Salmonella on tomato compared to UV-C and
200 ppm chlorine. Effects of UV-C with new antimicrobial formulation
HEN or with 1% binary mixture of LA & CA look very promising.
To the best of our knowledge this is the first study reporting
combined effects of low dose UV-C and novel antimicrobial
formulation HEN against Salmonella. The integrated treatment
strategies presented here can be used as a replacement for current
chlorine based processing. Results from this study may also help
scientists in designing effective decontamination strategy for
produce.
Effects of eleven different nonthermal hurdles of UV-C withantimicrobial wash against Salmonella on tomato as a model producehas been evaluated and their potential application in postharvest processing, as a replacement for current chlorine basedwashing treatment, has been presented. UV-C is a simple inexpensiveFDA approved method of surface decontamination while allantimicrobial compounds used in the study are GRAS. Among testorganic acids, 1% LA, 1% CA and all binary formulations of acidscoupling with UV-C indicated strong inactivation. Seven integratedtreatment strategies, combining low dose UV-C with HEN, 3% HP,and the test organic acids excluding 1% AA and MA, achieved higherlog reduction for Salmonella on tomato compared to UV-C and200 ppm chlorine. Effects of UV-C with new antimicrobial formulationHEN or with 1% binary mixture of LA & CA look very promising.To the best of our knowledge this is the first study reportingcombined effects of low dose UV-C and novel antimicrobialformulation HEN against Salmonella. The integrated treatmentstrategies presented here can be used as a replacement for currentchlorine based processing. Results from this study may also helpscientists in designing effective decontamination strategy forproduce.
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