| Titre : |
Decolorisation optimisation of a monoazo disperse dye with Bacillus firmus. Identification of a degradation product |
| Type de document : |
texte imprimé |
| Auteurs : |
Sucharita Arora, Auteur ; Harvinder Singh Saini, Auteur ; Kamaljit Singh, Auteur |
| Année de publication : |
2007 |
| Article en page(s) : |
p. 184-190 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Index. décimale : |
667.3 Teinture et impression des tissus |
| Résumé : |
Decolorisation of a heterocyclic monoazo red disperse dye by a bacterial strain Bacillus firmus isolated from local sewage and grown in mineral salt medium (MSM) was investigated. The effect of nutritional as well as environmental factors on the decolorisation efficiency was studied. Aerobic shaking (100 rpm) of a monoazo disperse dye, at pH 6.0, with the strain cultivated after 48 h, resulted in extensive (95–98%) decolorisation at 35 °C, whereas under anoxic conditions, decolorisation was only 75%. The nutrients sucrose (0.125% w/v), ammonium sulphate (0.05% w/v) and yeast extract (0.0025% w/v) have been found to be effective in decolorisation of the dye. One of the degradation products could be isolated and characterised using chromatographic and spectroscopic techniques. |
| DOI : |
10.1111/j.1478-4408.2007.00083.x |
| En ligne : |
http://onlinelibrary.wiley.com/doi/10.1111/j.1478-4408.2007.00083.x/pdf |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3542 |
in COLORATION TECHNOLOGY > Vol. 123, N° 3 (2007) . - p. 184-190
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