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Biotechnology
Year: 2002  |  Volume: 1  |  Issue: 1  |  Page No.: 10 - 14

Biosynthesis of Xylanase by UV-Treated Mutant Strain of Aspergillus niger GCBMX-45

Waseem Ahmad Butt, Ikram-ul-Haq and Javed Iqbal    

Abstract: This investigation describes the biosynthesis of xylanase by UV-treated strain of Aspergillus niger GCBMX-45. For this purpose, parental strains of Aspergillus niger was UV- irradiated for different time intervals (5-60 minutes). It was found that the strain treated for 45minutes gave the maximum yield of xylanase when different parameters were employed. Among different substrates and carbon sources, wheat bran (10g) and sucrose, respectively gave maximum production. Distilled water as a diluent and incubation period of 72 hours at 30oC were optimized for improved production under solid substrate fermentation conditions.

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