TY - JOUR
T1 - Identification of thermostable β-xylosidase activities produced by Aspergillus brasiliensis and Aspergillus niger
AU - Pedersen, Mads
AU - Lauritzen, Henrik Klitgaard
AU - Frisvad, Jens Christian
AU - Meyer, Anne Boye Strunge
PY - 2007
Y1 - 2007
N2 - 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 beta-xylosidases. The beta-xylosidase activities of the A. brasiliensis and A. niger strains had similar temperature and pH optima at 75 degrees C and pH 5 and retained 62% and 99%, respectively, of these activities over 1 h at 60 degrees C. At 75 degrees 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 beta-xylosidase production from the newly identified, non-ochratoxin-producing species A. brasiliensis.
AB - 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 beta-xylosidases. The beta-xylosidase activities of the A. brasiliensis and A. niger strains had similar temperature and pH optima at 75 degrees C and pH 5 and retained 62% and 99%, respectively, of these activities over 1 h at 60 degrees C. At 75 degrees 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 beta-xylosidase production from the newly identified, non-ochratoxin-producing species A. brasiliensis.
U2 - 10.1007/s10529-007-9314-9
DO - 10.1007/s10529-007-9314-9
M3 - Journal article
SN - 0141-5492
VL - 29
SP - 743
EP - 748
JO - Biotechnology Letters
JF - Biotechnology Letters
IS - 5
ER -