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TY - JOUR AU - D. Stella, P. Saranraj*, V. Sumathi, D. Reetha and PY - 2010/11/22 Y2 - 2025/09/23 TI - Fungal Decolourization of Direct Azo Dyes and Biodegradation of Textile Dye Effluent JF - Journal of Ecobiotechnology JA - JEBT VL - 2 IS - 7 SE - REGULAR ISSUE ARTICLES DO - UR - https://www.updatepublishing.com/journal/index.php/jebt/article/view/79 SP - AB - <p class="Abstract" style="margin: 0in -1.8pt 0pt 0in; tab-stops: center 2.75in right 5.5in left 472.5pt;"><strong><em><span style="font-family: ";Garamond";,";serif";; font-size: 12pt;">Abstract</span></em></strong></p><span style="line-height: 110%; font-family: ";Garamond";,";serif";; font-size: 10pt; mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA; mso-bidi-font-weight: bold;"></span><span style="line-height: 110%; font-family: ";Garamond";,";serif";; font-size: 10pt; mso-fareast-font-family: SimSun; mso-fareast-language: ZH-CN; mso-bidi-font-family: 'Times New Roman'; mso-ansi-language: EN-US; mso-bidi-language: AR-SA;">Decolourization of Direct azo dyes by fungi isolated from textile dye effluent was investigated. Seven different fungal species were isolated and identified. The fungal isolates were identified as <em style="mso-bidi-font-style: normal;">Aspergillus niger, Aspergillus flavus, Aspergillus fumigatus, Fusarium oxysporum, Penicillium chrysogenum, Mucor </em>sp<em style="mso-bidi-font-style: normal;">. </em>and <em style="mso-bidi-font-style: normal;">Trichoderma viride</em>. The fungal inoculums were inoculated into flasks containing Direct azo dyes (500 mg/l) with trace amounts of yeast extract, glucose and sucrose and then sterilized and incubated for 12 days. <em style="mso-bidi-font-style: normal;">Aspergillus niger</em> completely decolourized the Congo Red within 6 days. The best decolourizer of Viscose Orange-A was <em style="mso-bidi-font-style: normal;">Aspergillus fumigatus</em> (88.70%). <em style="mso-bidi-font-style: normal;">Mucor </em>sp<em style="mso-bidi-font-style: normal;">.</em> (69.73%) was identified as the best decolourizer of Direct Green – PLS. The dye Direct Violet-BL was completely decolourized by <em style="mso-bidi-font-style: normal;">Aspergillus niger</em> within 9 days and <em style="mso-bidi-font-style: normal;">Trichoderma viride</em> within 12 days. The dye Direct Sky Blue-FF was completely decolourized by <em style="mso-bidi-font-style: normal;">Aspergillus flavus</em> within 9 days and <em style="mso-bidi-font-style: normal;">Mucor </em>sp<em style="mso-bidi-font-style: normal;">.</em> within 12 days.<em style="mso-bidi-font-style: normal;"> Penicillium chrysogenum</em> have the capacity to completely decolourized the dye Direct Black-E within 12 days. Fungal biodegradation was assessed by physicochemical analysis.</span> ER -