ArticleBMC microbiology2026
Purification, and characterization of xylanase by Aspergillus krugeri AUMC 15912 utilizing sugarcane bagasse under solid-state fermentation conditions.
Article in BMC microbiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
This study focuses on optimizing, purifying, and characterizing xylanase produced by Aspergillus krugeri AUMC 15912 utilizing sugarcane bagasse under solid-state fermentation (SSF). The strain, isolated from sugarcane bagasse, exhibited significant xylanase activity, which was maximized after six days of incubation at pH 7.0 and 30 °C using ammonium chloride as the nitrogen source, yielding 183 ± 16 U/g dry substrate (gds). The enzyme was purified 508-fold through sequential chromatography on Trilite MC 08 and Sephacryl S-200 columns, resulting in a single band of 33.11 kDa on SDS-PAGE. The purified xylanase displayed peak activity of 1697.5 U/mg at pH 6.0 and 45 °C, with kinetic parameters Km and Vmax of 1.75 mM and 17.98 µmol/min, respectively. Activity was influenced by various salts and inhibitors, with residual activity ranging from 30.12% (NiCl₂) to 86.65% (CuSO₄). These findings highlight the potential of A. krugeri AUMC 15912-derived xylanase for industrial applications in bioconversion, food processing, and biofuel production.
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