期刊
BIORESOURCE TECHNOLOGY
卷 97, 期 16, 页码 2153-2159出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2005.09.014
关键词
decolorization; Dichomitus squalens; laccase; manganese peroxidase; ligninolytic enzymes; synthetic dyes
The ability to decolorize eight chemically different synthetic dyes (Orange G, Amaranth, Orange 1, Remazol Brilliant Blue R (RBBR), Cu-phthalocyanin, Poly R-478, Malachite Green and Crystal Violet) by the white rot fungus Dichomitus squalens was evaluated on agar plates. The fungus showed high decolorization capacity and was able to decolorize all dyes tested, but not to the same extent. Some of the dyes did not limit the decolorization capacity of the strain tested even at a concentration of 2 g/l. The presence of the dyes in solid media reduced the mycelial growth rate of D. squalens; a positive correlation was found between the growth rate and the decolorization ability. Decolorization of Orange G and RBBR was studied also in liquid culture, where both dyes caused an enhancement of ligninolytic enzyme and overall hydrogen peroxide production and a decrease of biomass production. RBBR was removed to a higher extent than Orange G. (c) 2005 Elsevier Ltd. All rights reserved.
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