Yellow pigment of Metarhizium anisopliae and its application to the dyeing of fabrics / Biaobiao Yan in COLORATION TECHNOLOGY, Vol. 135, N° 4 (08/2019)  

[article]  inCOLORATION TECHNOLOGY > Vol. 135, N° 4 (08/2019) . - p. 267-274 Titre : Yellow pigment of Metarhizium anisopliae and its application to the dyeing of fabrics Type de document : texte imprimé Auteurs : Biaobiao Yan, Auteur ; Muying Yang, Auteur ; Qingqing Zhou, Auteur ; Tieling Xing, Auteur ; Guoqiang Chen, Auteur ; Jiayong Sheng, Auteur Année de publication : 2019 Article en page(s) : p. 267-274 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Fibres animales Jaune Laine Pigments bactériens Soie et constituants Teinture -- Fibres textiles Index. décimale : 667.3 Teinture et impression des tissus Résumé : Microbial dyes have received substantial attention because of their natural environmental protection, simple access, and reduced regional and seasonal restriction. In this work, a microbial dye, the yellow pigment produced by Metarhizium anisopliae, was first studied then applied. The strain produced by the culture was identified, and the conditions for producing yellow pigment were optimised. Further, the stability of M. anisopliae yellow pigment was examined, and the pigment was applied to the dyeing of silk and wool fabrics. The results showed that the homology of the strain with M. anisopliae was 99.98%. In liquid fermentation culture, the optimal carbon source was glucose, and the dosage was 30 g/l. The maximum pigment yield can be obtained by culturing with 4% v/v of inoculation quantity at pH 7 and 30 °C. In addition, the effects of pH, temperature and metal ions on the yellow pigment of M. anisopliae were significant. The optimum dyeing process conditions were dyeing temperatures of 80 °C for silk and 90 °C for wool, with a dyeing time of 60 min. This research developed a novel microbial dye and studied its application for the dyeing of protein fibres. Note de contenu : - EXPERIMENTAL : Materials - Preparation of pigment solution - Identification of strains - Optimisation of medium composition and fermentation process - Dyeing - Characterisations - RESULTS AND DISCUSSION : Preparation of M. anisopliae yellow pigment solution - Identification - UV absorption spectrum and chromaticity - Optimisation of fermentation medium and process - Stability of yellow pigment - Dyeing process and colour fastness of the fabrics DOI : 10.1111/cote.12401 En ligne : https://onlinelibrary.wiley.com/doi/epdf/10.1111/cote.12401 Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32829 [article]

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