Please use this identifier to cite or link to this item: https://scholarbank.nus.edu.sg/handle/10635/136201
Title: ANTI-BIOFILM EFFECT OF 405 NM LED AGAINST LISTERIA MONOCYTOGENES AND ITS POTENTIAL APPLICATION IN CONTROLLING L.MONOCYTOGENES AND SALMONELLA SPP. ON FRESH SALMON
Authors: LI XINZHI
Keywords: 405 nm LED, Listeria monocytogenes, biofilm, Salmonella spp., salmon, refrigeration
Issue Date: 27-Mar-2017
Citation: LI XINZHI (2017-03-27). ANTI-BIOFILM EFFECT OF 405 NM LED AGAINST LISTERIA MONOCYTOGENES AND ITS POTENTIAL APPLICATION IN CONTROLLING L.MONOCYTOGENES AND SALMONELLA SPP. ON FRESH SALMON. ScholarBank@NUS Repository.
Abstract: 405 nm LED illumination effectively inhibited the growth of Listeria monocytogenes planktonic and biofilm cells on stainless steel (SS) and acrylic (AC) contact surfaces for 8 h during biofilm forming, whereas anti-biofilm effect of LED illumination was only observed at 25 °C when biofilm was pre-attached (pre-formed) on both contact surfaces. However, pre-formed biofilm cells exposed to LED illumination at 4 and 15 °C were more sensitive to quaternary ammonium compound (QAC) treatment than non-illuminated ones. On the other hand, LED illumination significantly inactivated both L. monocytogenes and Salmonella spp. cells on salmon surfaces during storage for 8 h and LED-illuminated cells were also more susceptible to simulate gastric fluid (SGF) than non-illuminated cells. No significant color changes were observed for salmon slices during LED illumination for 8 h.
URI: http://scholarbank.nus.edu.sg/handle/10635/136201
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