Decolorization of textile dyestuffs by a mixed bacterial consortium

Abstract

A mixed anaerobic bacterial culture decolorized Drimaren Orange K-GL, Everzol Red RBN and Everdirect Supra Yellow PG dyestuffs at 200 mg dyestuff l⁻¹ over 24 h. Improved performance with complete decolorization within 24 h was achieved by incubation with 5 g yeast extract l⁻¹ compared to glucose, lactose and sucrose though 50 mg yeast extract l⁻¹ supplemented with 5 g lactose l⁻¹ or 5 g sucrose l⁻¹ also resulted in complete decolorization within 24 h.