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AimEvaluation of the medium components and conditions for the optimization of xylanase production in submerged fermentation byMethodswas identified by the 18s rRNA. NaOH pre-treated corn cobs were used in order to reduce the crystallinity of corn cobs. De-oiled cakes proximate composition was analyzed according to AOAC. Plackett-Burman design (PBD) was used to screen the 19 media variables that affect xylanase production and optimized the media by central composite design (CCD).ResultsThe isolate was identified asConclusionNaOH pre-treated corn cobs were used with mustard cake powder as fermentation medium constituent to induce the xylanase production. From the results we conclude that mustard cake induced the xylanase production.