title: Decolorization pathways of anthraquinone dye Disperse Blue 2BLN by Aspergillus sp. XJ-2 CGMCC12963.
abstract: Anthraquinone dye represents an important group of recalcitrant pollutants in dye wastewater. Aspergillus sp XJ-2 CGMCC12963 showed broad-spectrum decolorization ability, which could efficiently decolorize and degrade various anthraquinone dyes (50 mg L-1) under microaerophilic condition. And the decolorization rate of 93.3% was achieved at 120 h with Disperse Blue 2BLN (the target dye). Intermediates of degradation were detected by FTIR and GC-MS, which revealed the cleavage of anthraquinone chromophoric group and partial mineralization of target dye. In addition, extracellular manganese peroxidase showed the most closely related to the increasing of decolorization rate and biomass among intracellular and extracellular ligninolytic enzymes. Given these results, 2 possible degraded pathways of target dye by Aspergillus sp XJ-2 CGMCC12963 were proposed first in this work. The degradation of Disperse Blue 2BLN and broad spectrum decolorization ability provided the potential for Aspergillus sp XJ-2 CGMCC12963 in the treatment of wastewater containing anthraquinone dyes.
authors.affiliation: a Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering , Shihezi University , Shihezi , PR China.
authors.forename: Huiran
authors.initials: H
authors.lastname: Pan
authors.affiliation: a Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering , Shihezi University , Shihezi , PR China.
authors.forename: Xiaolin
authors.initials: X
authors.lastname: Xu
authors.affiliation: a Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering , Shihezi University , Shihezi , PR China.
authors.forename: Zhu
authors.initials: Z
authors.lastname: Wen
authors.affiliation: a Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering , Shihezi University , Shihezi , PR China.
authors.forename: Yanshun
authors.initials: Y
authors.lastname: Kang
authors.affiliation: a Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering , Shihezi University , Shihezi , PR China.
authors.forename: Xinhao
authors.initials: X
authors.lastname: Wang
authors.affiliation: a Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering , Shihezi University , Shihezi , PR China.
authors.forename: Youshan
authors.initials: Y
authors.lastname: Ren
authors.affiliation: a Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan/School of Chemistry and Chemical Engineering , Shihezi University , Shihezi , PR China.
authors.forename: Danqi
authors.initials: D
authors.lastname: Huang
mesh_terms: D000880:Anthraquinones / Q000302:isolation & purification / Q000378:metabolism*; D001230:Aspergillus / Q000145:classification / Q000378:metabolism*; D003116:Color; D004396:Coloring Agents / Q000302:isolation & purification / Q000378:metabolism*; D053858:Metabolic Networks and Pathways / Q000502:physiology*; D008954:Models, Biological; D010544:Peroxidases / Q000378:metabolism*; D013045:Species Specificity; D062065:Wastewater / Q000382:microbiology; D014874:Water Pollutants, Chemical / Q000302:isolation & purification / Q000378:metabolism*; D018508:Water Purification / Q000379:methods*
chemical_list: D000880:Anthraquinones; D004396:Coloring Agents; D010544:Peroxidases; D062065:Wastewater; D014874:Water Pollutants, Chemical; C051129:manganese peroxidase
keywords: Aspergillus; anthraquinone dyes; degradation pathway; ligninolytic enzymes; textile effluents