Decontamination of Listeria monocytogenes in enoki mushrooms using a 405-nm light-emitting diode illumination combined with organic acid dipping

Abstract This study was undertaken to examine the effect of a 405-nm light-emitting diode (LED) illumination alone or combined with 3% organic acid dipping on the survival of Listeria monocytogenes in enoki mushrooms stored at 5 °C. Less than 1.0 or 2.1–4.4 log-reductions were achieved when L. monocytogenes in enoki mushrooms was illuminated with a 405-nm LED at 5 °C for 3 h or immersed in 3% malic acid (MA) or lactic acid (LA) at 25 °C for 30 min. Particularly, L. monocytogenes in mushrooms was significantly (p