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Production of xylanolytic enzymes by strains of Aspergillus
Production of hemicellulolytic enzymes required in the hydrolysis of different xylans was investigated using strains of seven species of Aspergillus. Of the strains producing highest levels of xylanolytic activities, a. foetidus VTT-D-71002 was apparently non-cellulolytic and could therefore be a possible source of cellulase-free hemicellulase for ...
Poutanen, Kaisa, Bailey, Michael
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Production of cellulolytic and xylanolytic enzymes by an Arthrographis species
World Journal of Microbiology and Biotechnology, 1993A fungal isolate, Arthrographis sp. strain F4, when grown in shake-flask culture, produced cellulolytic and xylanolytic enzymes optimally at 30°C with an initial pH of 5.0 to 6.0. Coarsely-ground filter paper was the most suitable carbon substrate for production of the enzymes.
S K C Obi, B C Okeke
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The Xylanolytic Enzyme System of Trichoderma reesei
The xylanolytic enzyme system of Trichoderma reesei, a well-known producer of cellulolytic enzymes, is versatile and well suited for the total hydrolysis of different xylans. It consists of two major, specific and several non-specific xylanases, at least one β-xylosidase, α-arabinosidase and α-glucuronidase and at least two acetyl esterases.
Kaisa Poutanen, Jurgen Puls
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Characterization of xylanolytic enzymes for potential applications: Dissertation
Xylans are heteropolysaccharides with a backbone consisting of 1,4 linked ß-D-xylopyranose units.Xylans are the major hemicellulose of hardwoods and annual plants, where together with cellulose and lignin they form the supporting material of the plant cell walls.In this study the enzymatic hydrolysis of xylans was shown to be influenced by the ...
Poutanen, Kaisa
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Cellulolytic and xylanolytic enzymes of Trichoderma reesei: Dissertation
Enzymes hydrolyzing cellulose and xylan are important in the utilization of biomass in biotechnical processes.The work presented here concerns the cellulolytic and xylanolytic enzymes of Trichoderma reesei.Purification procedures, detection methods for the different components of the complex enzyme mixtures and some properties of the purified enzymes ...
Lappalainen, Arja
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Xylanolytic enzymes were produced by Aspergillus niger NRRL3 grown on agro-industrial by-products obtained from the processing of wheat flour without pretreatment. Significant parameters for xylanase production were screened and optimized.
Gisela Tubío, Maria Julia Boggione
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Family 8 enzymes with xylanolytic activity
The present invention describes a method to improve the properties of a dough and/or baked product by adding a bread or dough-improving agent containing an enzyme with xylanolytic activity belonging to glycoside hydrolases family 8. Preferred enzymes are
COLLINS TONY +3 more
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Regulation of xylanolytic enzymes in Bacillus subtilis
Microbiology, 1994The synthesis of the xylanolytic enzymes beta-xylanase and beta-xylosidase of Bacillus subtilis was studied. In contrast to many catabolic extracellular enzymes, beta-xylanase was synthesized constitutively during exponential growth and was not repressed by glucose.
C, Lindner, J, Stülke, M, Hecker
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Xylanolytic enzyme production by anAspergillus niger isolate
Applied Biochemistry and Biotechnology, 1994Production of xylanolytic enzymes by an Aspergillus niger CCMI 850 isolate was investigated in batch cultures. The effect of the composition of a fermentation medium that did not include chemical inducers, on beta-xylanase, beta-xylosidase, alpha-L-arabinofuranosidase, and total cellulase activity was studied.
M, Costa-Ferreira +5 more
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