The decontamination effect of UV-C light at increasing fluence up to 1.2kJ/m2 was studied with reference to natural microflora and inoculated pathogens in lamb's lettuce wash water. UV-C light dose of 0.4kJ/m2 allowed to inactivate most of the native microflora and to achieve more than 5- Log-reductions in inoculated microorganisms (Salmonella enterica, Listeria monocytogenes and Escherichia coli). In multiple washing cycles up to 5, UV-C light treatment allowed to obtain more than 3-log reductions in native microflora in wash water. Spectral properties indicated that, independently on the number of recycling cycles, a considerable amount of UV-C light can penetrate wash water if its thickness is lower than circa 1cm. © 2014.

Minimization of water consumption in fresh-cut salad washing by UV-C light

IGNAT, Alexandra;MANZOCCO, Lara
;
MAIFRENI, Michela;NICOLI, Maria Cristina
2015-01-01

Abstract

The decontamination effect of UV-C light at increasing fluence up to 1.2kJ/m2 was studied with reference to natural microflora and inoculated pathogens in lamb's lettuce wash water. UV-C light dose of 0.4kJ/m2 allowed to inactivate most of the native microflora and to achieve more than 5- Log-reductions in inoculated microorganisms (Salmonella enterica, Listeria monocytogenes and Escherichia coli). In multiple washing cycles up to 5, UV-C light treatment allowed to obtain more than 3-log reductions in native microflora in wash water. Spectral properties indicated that, independently on the number of recycling cycles, a considerable amount of UV-C light can penetrate wash water if its thickness is lower than circa 1cm. © 2014.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11390/1025749
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