activity has also been detected in fungi, resulting in products of higher MW than the original substrates (Kurakabe et al., 1997). An important role attributed to β-xylosidases comes into play after the xylan has suffered a number of successive hydrolyses byxylanase. This reaction leads to ...
Two proteins exhibiting β-d-xylosidase activity were identified upon fractionation and purification of a culture filtrate of an arabinoxylan-grown Aspergillus niger, A single band of 110 kDa by SDS/PAGE was obtained in both cases and these were active on xylo-oligosaccharides and on xylan. Partial...
Therefore, complete hydrolysis of xylans requires not only glycoside hydrolases (endo-β-1,4-xylanases, β-xylosidases), but also deacetylating enzymes, namely, acetyl xylan esterases (EC 3.1.1.72, AXEs), and other side substituent cleaving enzymes, including α-L-arabinofuranosidases (EC 3.2....
Two enzymes with activity on xylan and xylan-based substrates were isolated from malted barley. One appears to be relatively anionic and the other more cationic. Both are endo-acting enzymes. The first of these was studied in more detail and shown to be of molecular weight ca. 59,000 and ...
The faeA gene from Aspergillus niger encoding a feruloyl esterase with activity on xylan and pectin is subject to a complex system of regulation Cinnamoyl esterases play a role in the complete degradation of plant cell wall polysaccharides (xylan and pectin) by micro-organisms. The induction and ...
the effects of xylanase and β-xylosidase in reducing inhibition by xylo-oligomers were evaluated, and different cellulase and hemicellulase supplementation sequences were used to test our hypothesis that hydrolyzing xylans and xylo-oligomers before adding cellulase could reduce loss of enzyme activity. ...
maritima was clearly able to remove 4-O-methylglucuronic acid groups from polymeric xylan and its fragment oligosaccharides. The enzyme acts synergistically with xylanase and beta-xylosidase in the hydrolysis of birchwood xylan and 4-O-methyl-D-glucuronoxylan. Enzymatic hydrolysis of corncob xylan ...
PURIFICATION AND CHARACTERIZATION OF AN EXTRACELLULAR BETA-XYLOSIDASE OF TERMITOMYCES CLYPEATUS The protein-protein aggregation appeared to confer additional stability to the -xylosidase toward extracellular denaturing conditions. S Bhattacharyya,S Khowala,A Kumar,... - 《Biotechnology Progress》 被引量: 31...
Heterogenous nature of xylan leads to the multiplicity in xylanolytic enzymes for its complete degradation, where β-1,4-endoxylanases and β-xylosidases play a key role due to their direct action on glycosidic linkages of xylan backbone. α-Glucuronidas
Cell-associated β-xylosidase from Aureobasidium pullulans ATCC 20524: Purification, properties, and characterization of the encoding gene A cell-associated enzyme exhibiting β-xylosidase activity was purified from the cell extract of the dimorphic fungus, Aureobasidium pullulans strain ATCC ... K Ohta,...