CobaltMaghrebV1, Main, Exploration, bibRecord, 000238

Decolorization of the metal textile dye Lanaset Grey G by immobilized white-rot fungi.

Identifieur interne : 000238 ( Main/Exploration ); précédent : 000237; suivant : 000239

Decolorization of the metal textile dye Lanaset Grey G by immobilized white-rot fungi.

Auteurs : Dalel Daâssi [Tunisie] ; Tahar Mechichi ; Moncef Nasri ; Susana Rodriguez-Couto

Source :

Journal of environmental management [ 1095-8630 ] ; 2013.

RBID : pubmed:23978620

Descripteurs français

KwdFr :
- Acide glucuronique (), Acides hexuroniques (), Agents colorants (métabolisme), Alginates (), Chrome (métabolisme), Cobalt (métabolisme), Coriolaceae (métabolisme), Dépollution biologique de l'environnement, Polluants chimiques de l'eau (métabolisme), Trametes (métabolisme), Tunisie.
MESH :
- métabolisme : Agents colorants, Chrome, Cobalt, Coriolaceae, Polluants chimiques de l'eau, Trametes.
- Acide glucuronique, Acides hexuroniques, Alginates, Dépollution biologique de l'environnement, Tunisie.
Wicri :
- geographic : Tunisie.

English descriptors

KwdEn :
- Alginates (chemistry), Biodegradation, Environmental, Chromium (metabolism), Cobalt (metabolism), Coloring Agents (metabolism), Coriolaceae (metabolism), Glucuronic Acid (chemistry), Hexuronic Acids (chemistry), Trametes (metabolism), Tunisia, Water Pollutants, Chemical (metabolism).
MESH :
- chemical , chemistry : Alginates, Glucuronic Acid, Hexuronic Acids.
- chemical , metabolism : Chromium, Cobalt, Coloring Agents, Water Pollutants, Chemical.
- geographic : Tunisia.
- metabolism : Coriolaceae, Trametes.
- Biodegradation, Environmental.

Abstract

In this paper we studied the ability of four Tunisian-isolated fungi (i.e. Coriolopsis gallica, Bjerkandera adusta, Trametes versicolor and Trametes trogii) immobilized into Ca-alginate beads to decolorize the metal textile dye Lanaset Grey G (LG). The effect of different operational conditions, such as initial dye concentration, temperature, pH, beads/medium ratio and agitation, on dye decolorization by the immobilized fungi was investigated. Maximal decolorization percentages of 88.7%, 89.3%, 82.1% and 81.3% for C. gallica, B. adusta, T. versicolor and T. trogii were attained, respectively, when operating at an initial LG concentration of 150 mg/L, pH values of 5.0-6.0, temperatures of 40-45 °C and a beads/medium ratio of 20% (w/v) in static conditions after 72 h of incubation. Subsequently, the re-usability of the immobilized fungi was evaluated. After three decolorization cycles, the decolorization percentage of free cell cultures dropped to values below 36%, while decolorization percentages of about 75%, 70%, 60% and 68% were obtained by the immobilized cultures of C. gallica, B. adusta, T. versicolor and T. trogii, respectively.

DOI: 10.1016/j.jenvman.2013.07.026
PubMed: 23978620

Affiliations:

Tunisie

Le document en format XML

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<term>Chromium (metabolism)</term>
<term>Cobalt (metabolism)</term>
<term>Coloring Agents (metabolism)</term>
<term>Coriolaceae (metabolism)</term>
<term>Glucuronic Acid (chemistry)</term>
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<term>Alginates ()</term>
<term>Chrome (métabolisme)</term>
<term>Cobalt (métabolisme)</term>
<term>Coriolaceae (métabolisme)</term>
<term>Dépollution biologique de l'environnement</term>
<term>Polluants chimiques de l'eau (métabolisme)</term>
<term>Trametes (métabolisme)</term>
<term>Tunisie</term>
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<term>Cobalt</term>
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<term>Water Pollutants, Chemical</term>
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<term>Polluants chimiques de l'eau</term>
<term>Trametes</term>
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<front><div type="abstract" xml:lang="en">In this paper we studied the ability of four Tunisian-isolated fungi (i.e. Coriolopsis gallica, Bjerkandera adusta, Trametes versicolor and Trametes trogii) immobilized into Ca-alginate beads to decolorize the metal textile dye Lanaset Grey G (LG). The effect of different operational conditions, such as initial dye concentration, temperature, pH, beads/medium ratio and agitation, on dye decolorization by the immobilized fungi was investigated. Maximal decolorization percentages of 88.7%, 89.3%, 82.1% and 81.3% for C. gallica, B. adusta, T. versicolor and T. trogii were attained, respectively, when operating at an initial LG concentration of 150 mg/L, pH values of 5.0-6.0, temperatures of 40-45 °C and a beads/medium ratio of 20% (w/v) in static conditions after 72 h of incubation. Subsequently, the re-usability of the immobilized fungi was evaluated. After three decolorization cycles, the decolorization percentage of free cell cultures dropped to values below 36%, while decolorization percentages of about 75%, 70%, 60% and 68% were obtained by the immobilized cultures of C. gallica, B. adusta, T. versicolor and T. trogii, respectively.</div>
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Serveur d'exploration sur le cobalt au Maghreb

Decolorization of the metal textile dye Lanaset Grey G by immobilized white-rot fungi.

Decolorization of the metal textile dye Lanaset Grey G by immobilized white-rot fungi.

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri

Pour générer des pages wiki

	Serveur d'exploration sur le cobalt au Maghreb
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