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首页> 外文期刊>Bioprocess and Biosystems Engineering >Mechanism of triphenylmethane Cresol Red degradation by Trichoderma harzianum M06
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Mechanism of triphenylmethane Cresol Red degradation by Trichoderma harzianum M06

机译：哈茨木霉M06降解三苯甲烷甲酚红的机理

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摘要

Cresol Red belongs to the triphenylmethane (TPM) class of dyes which are potentially carcinogenic or mutagenic. However, very few studies on biodegradation of Cresol Red were investigated as compared to other type dyes such as azo and anthraquinone dye. The aim of this work is to evaluate triphenylmethane dye Cresol Red degradation by fungal strain isolated from the decayed wood in Johor Bahru, Malaysia. Detailed taxonomic studies identified the organisms as Trichoderma species and designated as strain Trichoderma harzianum M06. In this study, Cresol Red was decolorized up to 88 % within 30 days under agitation condition by Trichoderma harzianum M06. Data analysis revealed that a pH value of 3 yielded a highest degradation rate among pH concentrations (73 %), salinity concentrations of 100 g/L (73 %), and a volume of 0.1 mL of Tween 80 (79 %). Induction in the enzyme activities of manganese peroxidase, lignin peroxidase, laccase, 1,2- and 2,3-dioxygenase indicates their involvement in Cresol Red removal. Various analytical studies such as Thin-Layer Chromatography (TLC), UV-Vis spectrophotometer, and Gas chromatography mass spectrometry (GC-MS) confirmed the biotransformation of Cresol Red by the fungus. Two metabolites were identified in the treated medium: 2,4-dihydroxybenzoic acid (t (R) 7.3 min and m/z 355) and 2-hydroxybenzoic acid (t (R) 8.6 min and m/z 267). Based on these products, a probable pathway has been proposed for the degradation of Cresol Red by Trichoderma harzianum M06.
机译：甲酚红属于三苯基甲烷（TPM）类染料，可能会致癌或致突变。然而，与诸如偶氮和蒽醌染料的其他类型的染料相比，很少研究关于甲酚红的生物降解的研究。这项工作的目的是评估从马来西亚柔佛州新山的腐朽木材中分离出的真菌菌株对三苯甲烷染料甲酚红的降解作用。详细的分类学研究确定了该生物为木霉菌种，并命名为哈茨木霉菌M06。在这项研究中，哈氏木霉M06在搅拌条件下，在30天内将甲酚红脱色至88％。数据分析显示，在pH浓度（73％），盐度浓度为100 g / L（73％）和体积为0.1 mL的Tween 80（79％）中，pH值为3时降解率最高。锰过氧化物酶，木质素过氧化物酶，漆酶，1,2-和2,3-二加氧酶的酶活性的诱导表明它们参与了甲酚红的去除。薄层色谱（TLC），紫外可见分光光度计和气相色谱质谱（GC-MS）等各种分析研究均证实了真菌对甲酚红的生物转化。在处理过的培养基中鉴定出两种代谢产物：2,4-二羟基苯甲酸（t（R）7.3分钟和m / z 355）和2-羟基苯甲酸（t（R）8.6分钟和m / z 267）。基于这些产物，已经提出了哈氏木霉M06降解甲酚红的可能途径。

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  • 来源
    《Bioprocess and Biosystems Engineering》 |2015年第11期|2167-2175|共9页
  • 作者

    Nor Nurafifah Mohd; Hadibarata Tony; Zubir Meor Mohd Fikri Ahmad; Lazim Zainab Mat; Adnan Liyana Amalina; Fulazzaky Mohamad Ali;

  • 作者单位

    Univ Teknol Malaysia, Dept Environm Engn, Fac Civil Engn, Skudai 81310, Johor, Malaysia|Univ Teknol Malaysia, Res Inst Sustainable Environm, Ctr Environm Sustainabil & Water Secur IPASA, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Dept Environm Engn, Fac Civil Engn, Skudai 81310, Johor, Malaysia|Univ Teknol Malaysia, Res Inst Sustainable Environm, Ctr Environm Sustainabil & Water Secur IPASA, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Dept Environm Engn, Fac Civil Engn, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Dept Environm Engn, Fac Civil Engn, Skudai 81310, Johor, Malaysia|Univ Teknol Malaysia, Res Inst Sustainable Environm, Ctr Environm Sustainabil & Water Secur IPASA, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Dept Chem, Fac Sci, Skudai 81310, Johor, Malaysia;

    Univ Teknol Malaysia, Dept Environm Engn, Fac Civil Engn, Skudai 81310, Johor, Malaysia|Univ Teknol Malaysia, Res Inst Sustainable Environm, Ctr Environm Sustainabil & Water Secur IPASA, Skudai 81310, Johor, Malaysia;

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  • 正文语种 eng
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  • 关键词

    2,4-Dihydroxybenzoic acid; 2-Hydroxybenzoic acid; Cresol Red; Decolorization; Trichoderma harzianum M06; Triphenylmethane dye;

    机译：2,4-二羟基苯甲酸;2-羟基苯甲酸;甲酚红;脱色;哈茨木霉M06;三苯甲烷染料;

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