Bactericidal efficiencies of commercial disinfectants against Listeria monocytogenes on surfaces

Kaarina Aarnisalo (Corresponding Author), Satu Salo, Hanna Miettinen, Maija-Liisa Suihko, Gun Wirtanen, Tiina Autio, Janne Lunden, Hannu Korkeala, Anna-Maija Sjöberg

Research output: Contribution to journalArticleScientificpeer-review

60 Citations (Scopus)


The efficiencies of potassium persulphate, isopropanol, hydrogen peroxide and peracetic acid, quaternary ammonium compound, hypochlorite, sodium dichloroisocyanurate, ethanol and phenol derivatives, tertiary alkylamines and dimethyl alamine betaine‐based disinfectants and a hypochlorite‐based disinfecting cleaning agent were evaluated against eight Listeria monocytogenes strains representing three different ribotypes. All the disinfectants were effective in a suspension test with an exposure time of 30 s at the lowest concentrations recommended by the manufacturer. The efficiencies on surfaces were reduced. However, on clean surfaces all the agents were considered effective when the exposure time was 5 min and the concentration was the average recommended by the manufacturer. Five of nine disinfectants and the disinfecting cleaning agent were considered effective in soiled conditions in the surface test. The most efficient agent was isopropanol‐based and the least effective was the disinfectant containing tertiary alkylamine and dimethyl alamine betaine. Differences in bactericidal efficiencies of disinfectants against different L. monocytogenes strains on meat soiled surfaces were found.

Original languageEnglish
Pages (from-to)237 - 250
Number of pages14
JournalJournal of Food Safety
Publication statusPublished - 2000
MoE publication typeA1 Journal article-refereed

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