The Impact of Plasma‐modified Films with Sulfur Dioxide, Sodium Oxide on Food Pathogenic Microorganisms

Abstract

Abstract In this study, plasma modification was carried out in barrier discharge under atmospheric pressure. Sulfur dioxide and/or sodium oxide was used as the coating precursor. The results show that the films treated with a mixture of argon and sulfur dioxide inhibited microbial growth considerably better than those with coatings containing argon and sodium oxide. The highest levels of growth inhibition, of 86% for Staphylococcus aureus and 82% for Escherichia coli , were achieved with films carrying a sulfur‐containing coating (1.4% SO 2 ). Copyright © 2014 John Wiley & Sons, Ltd.