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首页> 外文期刊>Biocontrol Science >Decolorization of dark brown pigments in molasses wastewater by mutant strains of Aspergillus usamii and Coriolus versicolor
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Decolorization of dark brown pigments in molasses wastewater by mutant strains of Aspergillus usamii and Coriolus versicolor

机译：糖蜜曲霉和云芝突变株对糖蜜废水中暗褐色颜料的脱色

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摘要

The dark brown pigments contained in molasses wastewater (MW) are hardly decomposed by usual microorganisms. In light of this, Aspergillus usamii and Coriolus versicolor were selected for mutation induction by C~(5+) ion-beams or #gamma#-irradiation to increase their ability to decolorize these brown pigments. In this study, the decolorization yield from crude MW was 40 to 42% after 2 - 3 d incubation at 8-fold dilutions by mutant strains of A. usamii which were obtained by ion-beam irradiation while it was 30% by the parent strain. In the case of C. versicolor, the decolorization yield was increased to ca. 70% by the mutant strains after 5 to 6 d incubation at 8-hold dilutions whereas the yield was 51% by the parent strain.
机译：糖蜜废水（MW）中包含的深棕色颜料几乎不会被常见的微生物分解。有鉴于此，我们选择了C.（5+）离子束或＃γ＃辐照法诱导了USamiiillus usamii和Verriocolor versicolor的突变诱导，以提高它们使这些棕色颜料脱色的能力。在这项研究中，粗制MW的脱色产率在8倍稀释下经离子束辐照获得的A. usamii突变株孵育8倍后，脱色率为40％至42％，而亲本菌株为30％ 。在杂色梭菌的情况下，脱色产率增加到约1。以8倍稀释度孵育5至6天后，突变菌株占70％，而亲本菌株的产率为51％。

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