Screening of natural dyes from filamentous fungi and leather dyeing with Monascul purpureus extract / Wagner Fernando Fuck in JOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC), Vol. 102, N° 2 (03-04/2018)  

[article]  inJOURNAL OF THE SOCIETY OF LEATHER TECHNOLOGISTS & CHEMISTS (JSLTC) > Vol. 102, N° 2 (03-04/2018) . - p. 69-74 Titre : Screening of natural dyes from filamentous fungi and leather dyeing with Monascul purpureus extract Type de document : texte imprimé Auteurs : Wagner Fernando Fuck, Auteur ; Fernanda C. Lopes, Auteur ; Adriano Brandelli, Auteur ; Mariliz Gutterres, Auteur Année de publication : 2018 Article en page(s) : p. 69-74 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Champignons et constituants Colorants végétaux Colorimétrie Cuirs et peaux -- Teinture Photostabilité Résistance thermique Index. décimale : 675 Technologie du cuir et de la fourrure Résumé : Certain species of filamentous fungi produce coloured substances as secondary metabolites, which can be used as dyes for industrial applications. These natural dyes can be environmentally friendly alternatives to synthetic dyes, since they are extracted from sustainable sources with high yields, can be produced independently of seasonal effects, and no hazardous chemicals are used while they are produced. In this study, a screening of natural colourants from filamentous fungi was carried out by cultivation in liquid medium and further the Monascus purpureus extract was applied to leather dyeing. The efficiency of the dyeing was quantified through the remaining dye concentration in the wastewater by UV-vis spectroscopy, and the quality parameters of the leather samples were evaluated by the change of colour when they were exposed to light and heat. The absorption of Monascus dye into the leather was 70.6 ± 2.7% when deacidification at pH5.0 was used. The dyed leather showed good penetration, colour homogeneity and heat fastness. Note de contenu : - MATERIALS AND METHODS : Filamentous fungi strains - Production of dyes - Colourmetric analysis - Leather dyeing - RESULTS AND DISCUSSION : Selection of natural dyes extracted from filamentous fungi - Evaluation of leather with Monascus purpureus dye - Analysis of heat and UV light fastness of leather dyed with M. purpureus dye En ligne : https://drive.google.com/file/d/1l_x3o8Zcme9CoYVqZN5bssYTJ-bufwri/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30559 [article]

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