Abstract
Twenty Aspergillus strains were evaluated for production of extracellular cellulolytic and xylanolytic activities. Aspergillus brasiliensis, A. niger and A. japonicus produced the highest xylanase activities with the A. brasiliensis and A. niger strains producing thermostable β-xylosidases. The β-xylosidase activities of the A. brasiliensis and A. niger strains had similar temperature and pH optima at 75°C and pH 5 and retained 62% and 99%, respectively, of these activities over 1 h at 60°C. At 75°C, these values were 38 and 44%, respectively. Whereas A. niger is a well known enzyme producer, this is the first report of xylanase and thermostable β-xylosidase production from the newly identified, non-ochratoxin-producing species A. brasiliensis.
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Pedersen, M., Lauritzen, H.K., Frisvad, J.C. et al. Identification of thermostable β-xylosidase activities produced by Aspergillus brasiliensis and Aspergillus niger . Biotechnol Lett 29, 743–748 (2007). https://doi.org/10.1007/s10529-007-9314-9
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DOI: https://doi.org/10.1007/s10529-007-9314-9