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Published 2021

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Publication details

Journal : Foods , vol. 10(1) , p. 8 , 2021

Publisher : MDPI

International Standard Numbers :
Printed : 2304-8158
Electronic : 2304-8158

Publication type : Academic article

Contributors : Kure, Cathrine Finne; Langsrud, Solveig; Møretrø, Trond

Issue : 55


The aim of the study was to evaluate the fungicidal effect of a H2O2 mist generating system for disinfection of spores of six food-related moulds (Alternaria alternata, Aspergillus flavus, Geotrichum candidum, Mucor plumbeus, Paecilomyces variotii, and Penicillium solitum) dried on stainless
steel. Exposure to H2O2 mist for 2 or 4 h lead to >3 log reduction in mould spores in the majority of
the tests. The presence of the soils 2% skim milk or 3% BSA did not significantly alter the fungicidal
effect, while the presence of raw meat juice had an adverse fungicidal effect against Penicillium
and Mucor in two out of three tests. Fungicidal suspension tests with liquid H2O2 confirmed the
effectiveness of H2O2 on reducing the mould spores. Both the surface test and the suspension test
indicated that P. variotii is more resistant to H2O2 compared to the other moulds tested. The study shows the efficiency of H2O2 mist on reducing food-related mould spores on surfaces.