Enzymology of soft-wood hemicellulose hydrolysis; the systems of aspergillus niger and trichoderma reesei

摘要

Aspergillus niger and Trichoderma reesei produces enzymes that hydrolyze galactoglucomannan. Both organisms appear to secrete beta-mannanases of glycosyl hydrolase family 5, but only the T. reesei enzyme appear to have a cellulose binding domain. Three alfa-galactosidases of T. ressei belong to family 27 and 36. A family 27 alfa-galactosidase from A. niger has been reported in the literature. Additional afla-galactosidases secreted from A. nigher was characterized.