Modeling of <i>Escherichia coli</i> and <i>Listeria monocytogenes</i> Inactivation in Human Milk With a Batch UV-C System: Effect of Agitation, Temperature, and Solids Content.

ABSTRACT: This study was aimed at evaluating the influence of agitation intensity, initial temperature, and total solids content of milk on the inactivation of Escherichia coli and Listeria monocytogenes by UV-C radiation, with emphasis on a UV-C system in batches for human milk. The kinetic parameters of the inactivation of bacteria were estimated by GInaFiT and modeled to obtain a first-order model. Results showed that the initial temperature of the milk influencing only the E. coli inactivation and 4D reductions were achieved with UV-C dose between 42.7 and 54 J/L for E. coli and 29.2 and 48.6 J/L for L. monocytogenes, all under agitation conditions above 550 rpm. The UV-C dose to the first decimal reduction (δ) for both bacteria was approximately fourfol

SUBMITTER: Silva MO 

PROVIDER: S-EPMC12696034 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature