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Antibacterial activity of covered paper after storage

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Jarosz M., Sumińska P., Kowalska U., Mizielińska M.
World News of Natural Sciences
|
2018
|
vol. 17
141-146
EN
The paper covered with a hydrophobic Topscreen coating was coated with the second layer. The goal of paper covering was to obtain the antimicrobial properties of the external coating. The samples were stored 2 months at 20 ºC. The influence of storage on the antimicrobial properties of the external coating was analyzed. The results of the study showed that paper covered with Topscreen coating did not have an influence on the growth of Staphylococcus aureus cells. The second (external) layer containing 2% polylysine as an active substance decreased the growth of S. aureus. The 2 months storage of the covered paper did not influence the antimicrobial properties of coating with polylysine against S. aureus. It was demonstrated that paper covered with hydrophobic coating had no influence on the growth of E. coli cells as well. In this case the influence of 2 months storage on the antimicrobial properties of the coating with polylysine was observed. In contrast to the results obtained for the samples that were not store, the decrease of the growth of the bacterial cells after 24 h contact with a hydrophobic coating devoid of an active substance was noticed.
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