Temperature effect in the production of multiple xylanases by Aspergillus fumigatus.
This work has evaluated the temperature effect in the production of multiple xylanases by a locally isolated strain of Aspergillus fumigatus Fresenius. Three isoenzymes, identified as xylanases I, II, and III with apparent molecular weight of 45.7 KDa, 39.8 KDa and 18.2 KDa, respectively, were produced in cultures developed at 30 degrees C and at 42 degrees C. The pattern of distribution of xylanase activity among the three isoenzymes was greatly affected by the growth temperature: at 30 degrees C, the total xylanase activity was distributed homogeneously among the three enzymes, while at 42 degrees C, the total xylanase activity was mainly due to the fractions with the highest MW (I and II) and the xylanase III was a minor component.
Lenartovicz
Veridiana
V
Departamento de Bioquimica, Universidade Estadual de Maringá, 87.020-900, Maringá, PR, Brazil.
Marques de Souza
Cristina Giatti
CG
Moreira
Fabiana Guillen
FG
Peralta
Rosane Marina
RM
D001232:Aspergillus fumigatus / Q000201:enzymology* / Q000378:metabolism; D018554:Avena / Q000166:cytology / Q000378:metabolism; D002482:Cellulose / Q000145:classification / Q000378:metabolism; D002850:Chromatography, Gel; D003470:Culture Media; D004591:Electrophoresis, Polyacrylamide Gel; D006358:Hot Temperature; D006863:Hydrogen-Ion Concentration; D008031:Lignin / Q000145:classification / Q000378:metabolism; D013696:Temperature; D043325:Xylan Endo-1,3-beta-Xylosidase; D014995:Xylosidases / Q000096:biosynthesis* / Q000145:classification
D003470:Culture Media; C036909:lignocellulose; D002482:Cellulose; D008031:Lignin; D014995:Xylosidases; D043325:Xylan Endo-1,3-beta-Xylosidase