Decolorization of azo dyes by Phanerochaete chrysosporium and Pleurotus sajorcaju
Decolorization of azo dyes by Phanerochaete chrysosporium and Pleurotus sajorcaju
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DOI：
10.1016/s0141-0229(01)00405-7
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发表时间：
2001-11-05
影响因子：
3.4
通讯作者：
Durrant, LR
中科院分区：
文献类型：
--
作者：
Chagas, EP;Durrant, LR
工业废水中存在的许多合成染料对常规处理的降解具有抗性。研究了四种偶氮染料在两种白色腐真菌培养物中的脱色作用。在固化的培养基中，黄孢原毛革菌部分脱色所有的染料测试，而Pleumsajorcaju完全脱色阿马兰斯红，新胭脂红，和橙子G，但不是柠檬黄。在液体培养基中，黄孢原毛平革菌对阿马兰斯红、新胭脂红和橙子G完全脱色，对60%柠檬黄完全脱色。Pleuplesajorcaju完全脱色阿马兰斯红和新的胭脂红，50%橙子G和最多20%的柠檬黄。两种真菌均未表现出木质素过氧化物酶或藜芦醇氧化酶的活性，表明这些酶可能不参与脱色。锰过氧化物酶和β-葡萄糖苷酶可能参与了黄孢原毛平革菌对染料的脱色，而在沙焦原毛平革菌中，对邻联茴香胺有活性的漆酶和葡萄糖-1-氧化酶可能参与了该过程。(C)2001 Elsevier Science Inc. All rights reserved.
Many synthetic dyes present in industrial wastewaters are resistant to degradation by conventional treatments. Decolorization of four synthetic azo dyes was examined in two white rot fungal cultures. In solidified culture medium, Phanerochaete chrysosporium partially decolorized all the dyes tested, while Pleurotus sajorcaju totally decolorized amaranth, new coccine, and orange G, but not tartrazine. In liquid culture medium, P. chrysosporium totally decolorized amaranth, new coccine and orange G, and 60% tartrazine. Pleurotus sajorcaju totally decolorized amaranth and new coccine, 50% orange G and a maximum of 20% tartrazine. Neither fungus showed lignin peroxidase or veratryl alcohol oxidase activities, suggesting that these enzymes may not be involved in the decolorization. Manganese-peroxidase and beta -glucosidase may be involved in the decolorization of the dyes by P. chrysosporium, whereas in P. sajorcaju a laccase active toward o-dianisidine, and glucose-1-oxidase might participate in the process. (C) 2001 Elsevier Science Inc. All rights reserved.