期刊
BIOPROCESS AND BIOSYSTEMS ENGINEERING
卷 40, 期 1, 页码 85-97出版社
SPRINGER
DOI: 10.1007/s00449-016-1677-7
关键词
Anthraquinone dye; Bioremediation; Catechol 1,2-dioxygenase; Laccase; Trichoderma lixii
资金
- Ministry of Education, Malaysia [R.J130000.7809.4F312]
In this study, a newly isolated ascomycete fungus Trichoderma lixii F21 was explored to bioremediate the polar [Alizarin Red S (ARS)] and non-polar [Quinizarine Green SS (QGSS)] anthraquinone dyes. The bioremediation of ARS and QGSS by T. lixii F21 was found to be 77.78 and 98.31 %, respectively, via biosorption and enzymatic processes within 7 days of incubation. The maximum biosorption (ARS = 33.7 % and QGSS = 74.7 %) and enzymatic biodegradation (ARS = 44.1 % and QGSS = 23.6 %) were observed at pH 4 and 27 A degrees C in the presence of glucose and yeast extract. The laccase and catechol 1,2-dioxygenase produced by T. lixii F21 were involved in the molecular conversions of ARS and QGSS to phenolic and carboxylic acid compounds, without the formation of toxic aromatic amines. This study suggests that T. lixii F21 may be a good candidate for the bioremediation of industrial effluents contaminated with anthraquinone dyes.
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