Thermostable .alpha.-L-arabinofuranosidase from Aureobasidium pullulans
AssigneeThe United States of America as represented by the Secretary of Agriculture
InventorsBadal C. Saha, Rodney J. Bothast
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Abstract
An .alpha.-L-arabinofuranosidase enzyme which is highly thermostable, and is effective for the hydrolysis of arabinofuranosyl residues from L-arabinose containing polysaccharides and hemicelluloses is disclosed. The enzyme is produced by color variant Aureobasidium pullulans strain NRRL Y-21792. This .alpha.-L-arabinofuranosidase may be used in conjunction with xylanolytic enzymes for the treatment of hemicellulosic materials to produce fermentable sugars, particularly xylose and L-arabinose.
Claims13
A substantially pure thermostable .alpha.-L-arabinofuranosidase produced by Aureobasidium pullulans NRRL Y-21792 and which is isolated from cells thereof, said .alpha.-L-arabinofuranosidase having maximal activity at 75.degree. C. being effective for the hydrolysis of arabinofuranosyl residues from L-arabinose containing polysaccharides and hemicelluloses.
Dependencies are inferred from the claim text.