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An examination of antimicrobial activity of lining leathers fatliquored with essential oils / Elzbieta Bielak in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXI, N° 6 (06/2016)
[article]
Titre : An examination of antimicrobial activity of lining leathers fatliquored with essential oils Type de document : texte imprimé Auteurs : Elzbieta Bielak, Auteur ; Ewa Marcinkowska, Auteur ; Justyna Sygula-Cholewinska, Auteur ; Jan Golonka, Auteur Année de publication : 2016 Article en page(s) : p. 213-220 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Cuirs et peaux -- Conservation
Huiles essentielles
Produits de conservation du cuirIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : To prevent losses caused by microbiological decay of leathers during technological processing, biocidal and biostatic chemical agents are used. They are introduced into the material structure at various stages of the tanning process. It has been shown that some of these agents are not neutral to human health and to the environment. Thus, substitutes for chemical preparations of appropriate efficiency in control of bacteria and fungi, but being safe to humans and the environment are sought. Suitability has been adequately confirmed by research performed worldwide on essential oils. In this paper antimicrobial resistance of lining leathers protected with essential oils extracted from plants Cinnamomum verum, Eucalyptus globulus, Origanum vulgare, Leptospermum scoparium and Thymus vulgaris is investigated. They were introduced into the leather at the fatliquoring stage at 5% per weight of leather. Antimicrobial activity of samples oiled with essential oils and controls (without these oils) was evaluated against bacteria Staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa and yeasts Candida albicans after 1 and 6 months. The growth inhibition zone around leather samples and microorganism growth, or lack of growth, within the sample-medium contact zone was determined. Investigations have confirmed the efficiency of three of five proposed oils: oregano, cinnamon and thyme. The strongest and most longlasting antimicrobial activity was observed for leathers preserved with oregano oil. Insufficient effect was found for leathers oiled with manuka and eucalyptus oils. Note de contenu : - MATERIAL : Leather - Essential oils
- METHODS : Preparing leather for testing - Microbiological examinationEn ligne : https://drive.google.com/file/d/1xNdsrdg9HNPYLjDvI0PNLgaYi_VZhvZ5/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=26441
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXI, N° 6 (06/2016) . - p. 213-220[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 18139 - Périodique Bibliothèque principale Documentaires Disponible The durability of antimicrobial effect of leathers finished with oregano oil / Elzbieta Bielak in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA), Vol. CXII, N° 11 (11/2017)
[article]
Titre : The durability of antimicrobial effect of leathers finished with oregano oil Type de document : texte imprimé Auteurs : Elzbieta Bielak, Auteur ; Ewa Marcinkowska, Auteur ; Justyna Sygula-Cholewinska, Auteur Année de publication : 2017 Article en page(s) : p. 377-386 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Antimicrobiens
Cuirs et peaux -- Conservation
Huile essentielle d'origanIndex. décimale : 675 Technologie du cuir et de la fourrure Résumé : Essential oils introduced into raw materials in the technological process enable leather to gain antimicrobial properties. These properties were examined toward microorganisms potentially pathogenic to humans and causing biodegradation of leather. The article presents an assessment of antimicrobial activity of cowhide lining leathers fatliquored with the addition of oregano oil at concentrations of 1% and 3% per leather weight after one month storage. Additionally, the durability of this activity for leathers with oregano oil at concentration of 3% was confirmed after 12 months. Antimicrobial effect was tested according to PN-EN ISO 20645:2006 Textile fabrics – Determination of Antibacterial Activity – Agar Diffusion Plate Test. Furthermore, to verify the results of antimicrobial durability of leathers within one year after fatliquoring, the method according to ISO 22196:2011 Measurement of antibacterial activity on plastics and other non-porous surfaces was used.
Antimicrobial effect of finished leathers against bacteria Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, yeast Candida albicans and filamentous fungus Scopulariopsis brevicaulis was tested. The obtained results indicated that lining leathers enriched with oregano oil at concentration of 3% per leather weight is characterized by its good and durable antimicrobial effect persisting even one year after adding oil into leather. The results presented in this paper is a continuation of previous studies on animal leather enriching with essential oils.Note de contenu : - Table 1. Antibacterial effect of the antibacterial treatment
- Table 2. Assessment schematic for the growth of filamentous fungi on the agar
- Table 3. As assessment of antimicrobial effect of leathres fatliquored with the addition of oregano oil at concentrations of 1% and 3% per leather weight after 1 and 12 months of storage
- Table 4. Antibacterial activity of the lining leather fatliquored with oregano oil at amount of 3% (per leather weight) to escherichia coli
- Table 5. Antibacterial activity of the lining leather fatliquored with oregano oil at amount of 3% (per leather weight) to staphylococcus aureusEn ligne : https://drive.google.com/file/d/1eKCDCNYAaGeqXsFlouaNU1H2fAQ01Cri/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=29396
in JOURNAL OF THE AMERICAN LEATHER CHEMISTS ASSOCIATION (JALCA) > Vol. CXII, N° 11 (11/2017) . - p. 377-386[article]Réservation
Réserver ce document
Exemplaires (1)
Code-barres Cote Support Localisation Section Disponibilité 19363 - Périodique Bibliothèque principale Documentaires Disponible