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Antimicrobial effect of lining leather fatliquored with the addition of essential oils

Bielak E., Syguła-Cholewińska J.

Biotechnology and Food Science

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2017

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Vol. 81, nr 2

149--157

EN

Footwear, especially those often and intensively used, provides an ideal environment for microbial growth. An appropriate high temperature and moisture content inside it enhance bacterial and fungal colonization by microbes. These microorganisms can be potentially pathogenic to human health and responsible for destruction of shoes materials from which the parts inside the shoe are made. In previous studies it has been shown that the addition of essential oils of antiseptic activity at leather finishing operations allows a leather to get antimicrobial properties. The aim of this paper is to assess the durability of antimicrobial effect of leather fatliquored with the addition of cinnamon, thyme and oregano essential oils at concentration of 5% per leather weight. Antimicrobial activity was evaluated according to guidelines of PN-EN ISO 20645:2006 “Textile fabrics – determination of antibacterial activity – Agar diffusion plate test” after 36-month storage. The obtained results have indicated that leathers under investigations show antimicrobial activity against E. coli, S. aureus and C. albicans strains even 3 years after fatliquoring. The use of natural bioactive substances such as cinnamon, thyme and oregano oils at concentration of 5% per leather weight in the leather finishing process may be an alternative to biocides used in the tanning industry as well it can improve hygienic properties of shoes, internal parts of which are made of such finished leathers.

2

Nanocząsteczkowy tlenek cynku w wykończeniach higienicznych tkanin

Syguła-Cholewińska J.

Przegląd Włókienniczy - Włókno, Odzież, Skóra

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2012

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nr 4

29-33

EN

Nanoparticle preparation with metal compounds, especially silver ones, is nowadays very often applied to give technical materials antibacterial properties. The aim of these studies was to evaluate the antimicrobial efficiency of zinc dioxide after it incorporation onto cotton and polyester textiles. Fabrics were treated with water suspension nanocapsules of zinc dioxide in size 77 nm. Antimicrobial activity was determined towards two strains of bacteria: Staphylococcus aureus and Pseudomonas aeruginosa and one mold Aspergillus flavus in agar diffusion plate test. Changes of mechanical properties, as well as brightness and colour differences of materials caused by impregnation with tested formula were also analyzed. The results showed, that zinc dioxide after incorporation onto textiles showed antibacterial activity towards Staphylococcus aureus but it did not have an adequate effect on gram-negative bacteria Pseudomonas aeruginosa even at 3% concentration. Slight growth inhibition of Aspergillus flavus was the only one antifungal effect. Furthermore, the investigation showed that zinc dioxide did not cause changes to the physical properties of polyester fabrics, but it caused cotton textile to be much more brighter and lighter, especially when material had been treated with alkaline first. The results from these investigations is that the application of zinc dioxide in antimicrobial textile finishing is problematic due to its limited biostatic activity and the necessity of using high concentration compared to other biocidal substances and also because of difficulties with evenly distribution and colour differences which are observed.

3

Przeżywalność bakterii Staphylococcus aureus na tkaninach użytkowych

Jekiel K., Szostak-Kot J., Syguła-Cholewińska J.

Przegląd Włókienniczy - Włókno, Odzież, Skóra

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2011

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nr 11-12

32-35