文章基本信息

标题：ENHANCED PRODUCTION OF XYLANASE FROM LOCAL FUNGAL ISOLATES AND EFFECTIVENESS IN PULP TREATMENT
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作者：Varsha D Savanth ; Seema J Patel
期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2013
卷号：2
期号：12
页码：7670
出版社：S&S Publications
摘要：Xylanases have huge potential applications in many industries used for the conversion of xylan present inlignocellulose to sugars. Xylanase producing Aspergillus niger islolates were obtained by congo red method ofscreening from soils collected from different parts of Davangere. Submerged and solid state fermentation were done onnatural substrates like- corncob, saw dust and rice husk to check the enhanced production of xylanase. Corncob wasfound to be the best natural substrate for high activity of xylanase (1.85 units.ml-1) under solid state fermentationcompared to submerged fermentation than the standard birch wood xylan substrate (1.22 units.ml-1). The screened,unbleached pulp from sugarcane bagasse was treated with partially purified xylanase and its effectiveness inbiobleaching was determined by the Kappa number. The kappa number obtained for enzyme treated pulp showedtwenty point reduction than untreated pulp. The %lignin content was also less (two point reduction) for enzyme treatedpulp.
关键词：Aspergillus niger; Corn cob; Kappa number; Congo red; Solid state fermentation