Revankar Madhavi S, Lele S S
Food Engineering and Technology Department, Institute of Chemical Technology, University of Mumbai, Matunga, Mumbai - 400019, India.
Bioresour Technol. 2007 Mar;98(4):775-80. doi: 10.1016/j.biortech.2006.03.020. Epub 2006 May 30.
Decolorization of recalcitrant dyes by an indigenous strain of white rot fungus isolated from bark of dead tree, WR-1 identified as Ganoderma sp. was investigated. The fermentation medium was optimized using a combination of one factor at a time and orthogonal array method. Maximum decolorization (96%) of 100 ppm amaranth was achieved in 8 h with optimized medium containing 2% starch and 0.125% yeast extract. Rate of dye decolorization by the indigenous isolate Ganoderma sp. WR-1 was very high compared to the most widely used strains of Trametes versicolor and Phanerochaete chrysosporium. The broad-spectrum decolorization efficiency of the isolate was assessed using chemically different dyes. The isolate was further evaluated for the decolorization of industrial effluent. Complete decolorization was achieved in 12 days.
对从死树树皮中分离出的一株本地白腐真菌WR-1（鉴定为灵芝属）对难降解染料的脱色情况进行了研究。采用一次一个因素和正交试验法相结合的方式对发酵培养基进行了优化。在含有2%淀粉和0.125%酵母提取物的优化培养基中，8小时内对100 ppm苋菜红的脱色率达到了最大值（96%）。与最广泛使用的变色栓菌和黄孢原毛平革菌菌株相比，本地分离株灵芝属WR-1对染料的脱色速率非常高。使用化学性质不同的染料评估了该分离株的广谱脱色效率。进一步评估了该分离株对工业废水的脱色情况。12天内实现了完全脱色。
