Enhanced Production of Ligninolytic Enzymes by a Mushroom Stereum ostrea

The white rot fungi Stereum ostrea displayed a wide diversity in their response to supplemented inducers, surfactants, and copper sulphate in solid state fermentation. Among the inducers tested, 0.02% veratryl alcohol increased the ligninolytic enzyme production to a significant extent. The addition...

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Bibliographic Details
Published in:Biotechnology Research International 2014-01, Vol.2014 (2014), p.182-190
Main Authors: Usha, K. Y., Praveen, K., Reddy, B. Rajasekhar
Format: Article
Language:English
Subjects:
Acids
Carbohydrates
Dietary fiber
Dyes
Enzymes
Fermentation
Fungi
Lignin
Lignocellulose
Oxidases
Studies
Surface active agents
Surfactants
Triticum aestivum
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Summary:The white rot fungi Stereum ostrea displayed a wide diversity in their response to supplemented inducers, surfactants, and copper sulphate in solid state fermentation. Among the inducers tested, 0.02% veratryl alcohol increased the ligninolytic enzyme production to a significant extent. The addition of copper sulphate at 300 μM concentration has a positive effect on laccase production increasing its activity by 2 times compared to control. Among the surfactants, Tween 20, Tween 80, and Triton X 100, tested in the studies, Tween 80 stimulated the production of ligninolytic enzymes. Biosorption of dyes was carried out by using two lignocellulosic wastes, rice bran and wheat bran, in 50 ppm of remazol brilliant blue and remazol brilliant violet 5R dyes. These dye adsorbed lignocelluloses were then utilized for the production of ligninolytic enzymes in solid state mode. The two dye adsorbed lignocelluloses enhanced the production of laccase and manganese peroxidase but not lignin peroxidase.
ISSN:2090-3138
2090-3146
2090-3146
DOI:10.1155/2014/815495