Efficacy of chlorine and a peroxyacetic acid sanitizer in killing Listeria monocytogenes on iceberg and Romaine lettuce using simulated commercial processing conditions

Journal of Food Protection
Larry R BeuchatMegan M Lang

Abstract

The efficacy of chlorine (100 microg/ml) and a peroxyacetic acid sanitizer (80 microg/ml; Tsunami 100) in killing Listeria monocytogenes inoculated at populations of 1 to 2, 2 to 3, and 4 to 5 log CFU/g of iceberg lettuce pieces, shredded iceberg lettuce, and Romaine lettuce pieces was determined by treatment conditions simulating those used by a commercial fresh-cut lettuce processor. The lettuce/treatment solution ratio was 1:100 (wt/vol), treatment temperature was 4 degrees C, and total treatment time was 30 s. Compared with washing in water, treatment of iceberg lettuce pieces containing all levels of inoculum and shredded iceberg lettuce containing 2 to 3 or 4 to 5 log CFU/g with chlorine or Tsunami resulted in significant reductions (P < or = 0.05) of pathogen populations. Populations recovered from Romaine lettuce pieces treated with chlorine or Tsunami were not significantly different from populations recovered from pieces washed with water, regardless of the inoculum level. Within lettuce type and inoculum level, in no instance was the number of L. monocytogenes recovered from lettuce treated with chlorine or Tsunami significantly different. The rate of decrease in free chlorine concentration in treatment solution as a...Continue Reading

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Citations

Nov 7, 2012·Journal of Food Protection·Larry R BeuchatWalid Q Alali
Jun 4, 2015·Journal of Food Protection·Aixia XuShirley A Micallef
Dec 18, 2016·Applied and Environmental Microbiology·Cameron ParsonsSophia Kathariou
Feb 22, 2017·Journal of Food Protection·Xuetong FanHelen Ngo
Jul 27, 2006·Journal of Food Protection·Sanna HellströmHannu Korkeala
Mar 29, 2007·Journal of Food Protection·Ynes R OrtegaVitaliano Cama
Jun 24, 2008·Critical Reviews in Food Science and Nutrition·Vicente M Gómez-LópezFrank Devlieghere
Aug 18, 2009·Journal of Food Protection·Guodong ZhangMichael P Doyle
Oct 17, 2018·Journal of Food Protection·Aljosa TrmcicSiyun Wang
Apr 30, 2017·Food Science and Biotechnology·Jin-Ha HwangKi-Hwan Park
Feb 23, 2019·Journal of Food Protection·Govindaraj Dev KumarSadhana Ravishankar
Oct 2, 2019·Journal of Food Science·Mohammadreza Dehghan AbnaviParthasarathy Srinivasan
Oct 30, 2014·Microbial Biotechnology·Sima Yaron, Ute Römling
Jan 26, 2018·Journal of Food Science·Prashant SinghHang Qi
Sep 29, 2011·Food Science and Technology International = Ciencia Y Tecnología De Los Alimentos Internacional·B Kumar DasJi Weon Choi
Aug 16, 2016·Applied and Environmental Microbiology·Miyu FuzawaThanh H Nguyen
Jul 28, 2015·International Journal of Environmental Research and Public Health·Jennifer L BanachH J Ine van der Fels-Klerx
Mar 31, 2015·Biocontrol Science·Isanori HoriuchiTomomi Kuwahara
Oct 7, 2015·Frontiers in Microbiology·Antje Fröhling, Oliver Schlüter
Oct 14, 2008·Foodborne Pathogens and Disease·Irene B HanningSteven C Ricke
Nov 18, 2018·International Journal of Food Microbiology·Vaishali DharmarhaMonica A Ponder
Apr 14, 2021·Poultry Science·Deana R JonesGarrett E Ward
Aug 7, 2021·Saudi Journal of Biological Sciences·Mohammad SarrafAnshu Rastogi

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