Title: Solid-state fermentation of MnP and decolorization of dyes
Abstract: Schizophyllum sp.F17 can use rice hulls to produce manganese peroxidase(MnP)by solid-state fermentation.Important parameters were optimized through orthogonal tests and five dyes with different structures were decolorized by applying MnP.The results showed that the moisture ratio,temperature,and concentrations of Mn2+ and Cu2+ all significantly influenced MnP production.The optimal conditions were rice hull 27 g,bean powder 3 g,MnSO4 0.4 mg·g-1,moisture ratio 150%,inoculation amount 50%,culture temperature 22℃ and pH not adjusted.Under these conditions,the MnP activity was increased by 78.2% from 9.20 U·g-1 to 16.39 U·g-1 and after 24 h of decolorization,the decolorization rates were 92.6% of Congo red,90.3% of Alizarin red,93.1% of Poly R-478,87.3% of Neutral red and 95.6% of Crystal violet.
Publication Year: 2008
Publication Date: 2008-01-01
Language: en
Type: article
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