Abstract
Aspergillus tamarii has been found to grow well and to produce high cellulase-free xylanase activity when growing on corn cob powder as the principal substrate. Maximum xylanase production (285-350 U/mL) was obtained when the strain was grown in media supplemented with high corn cob concentration (5-8%, w/v) for 5 d. The presence of constitutive levels of xylanase was detected in cultures with glucose as the carbon source. Zymogram analysis for detection of xylanase activity after electrophoresis in polyacrylamide gels has shown thatA. tamarii produces at least two xylanases under the conditions utilized. The hydrolysis patterns of xylan demonstrated that the xylanases were endoenzymes, yielding mainly xylobiose, xylotriose, and higher xylooligosaccharides with traces of xylose.
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Kadowaki, M.K., Souza, C.G.M., Simão, R.C.G. et al. Xylanase production byAspergillus tamarii . Appl Biochem Biotechnol 66, 97–106 (1997). https://doi.org/10.1007/BF02788755
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DOI: https://doi.org/10.1007/BF02788755