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Decolorization and Detoxification of Synthetic Dyes by Mexican Strains of Trametes sp
Laccases have attracted a great deal of interest because of their remarkable ability for the degradation of synthetic dyes present in wastewaters. New laccase producing sources with robust operational and functional properties are being continuously explored. In this work, the potential for the deco...
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Published in: | International journal of environmental research and public health 2019-11, Vol.16 (23), p.4610 |
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Main Authors: | , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
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Summary: | Laccases have attracted a great deal of interest because of their remarkable ability for the degradation of synthetic dyes present in wastewaters. New laccase producing sources with robust operational and functional properties are being continuously explored. In this work, the potential for the decolorization and detoxification of synthetic dyes was evaluated in two Mexican strains of the genus
. The decolorization capacity of
LE130 and
sp. LA1 was tested in solid and liquid media. The phytotoxicity of the degradation products was determined using
and
seeds. In solid media, both strains showed a higher decolorization capacity (
≤ 0.05) than
ATCC 24725, which is known to be very efficient in lignin and dye-degradation. They produced laccase as the main ligninolytic enzyme;
LE130 secreted a single isoform of 43.9 kDa, while
sp. LA1 produced three isoforms of 67.3, 58.6 and 52.7 kDa, respectively.
sp. LA1 culture fluids were capable of decolorizing and detoxifying chemically diverse dyes (anthraquinonic dye Remazol Brilliant Blue R, azoic Reactive Black 5 and triphenylmethane Crystal Violet) without the addition of redox mediators. Therefore, this could be considered as a new laccase source which could be potentially competitive in the bioremediation of dye-containing wastewaters. |
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ISSN: | 1660-4601 1661-7827 1660-4601 |
DOI: | 10.3390/ijerph16234610 |