Isolation of a high yield xylanase fungus and studies on its solid state fermentation
Guo Xia
Abstract
Guo Xia
Abstract
A high yield xylanase fungus Aspergillus niger M1 was isolated and its solid state fermentation conditions were studied.The optimal culture conditions were as follows:corncob meal:wheat bran=7∶3,0.6% of ammonium sulfate,dry medium:water=1∶2.0,temperature 30℃ and cultivation for 84 hours.The xylanase activity was as high as 3 689 μmol·min -1 ·g -1 in dry culture.
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A high yield xylanase fungus Aspergillus niger M1 was isolated and its solid state fermentation conditions were studied.The optimal culture conditions were as follows:corncob meal:wheat bran=7∶3,0.6% of ammonium sulfate,dry medium:water=1∶2.0,temperature 30℃ and cultivation for 84 hours.The xylanase activity was as high as 3 689 μmol·min -1 ·g -1 in dry culture.
Key concepts: Corncob, Xylanase, Bran, Solid-state fermentation, Aspergillus niger, Fermentation, Ammonium sulfate, Fungus