Pyrodictium xylanase amylase and pullulanase
AssigneeNovo Nordisk A/S
InventorsCarsten Sj.o slashed.holm, Garabed Antranikian
Life of this patent
Estimating the term…
Abstract
The present invention relates to a xylanase from the family Desulfurococcaceae, specifically to a xylanase from the genus Pyrodictium and more specifically to a xylanase from Pyrodictium abyssi and in particular to a xylanase from Pyrodictium abyssi, DSM 6158, which has (a) activity optimum in the pH range 5.5-6.5 at 100.degree. C. with xylan as a substrate and (b) activity optimum at the temperature range 105.degree.-115.degree. C., determined at pH 5.5 with xylan as a substrate. The present invention also relates to a process of bleaching lignocellulosic pulp with said xylanase.
Claims5
A xylanase preparation, which is obtained from a xylanase producing strain of the family Desulfurococcaceae, and has
- (a) Activity optimum in the range pH 5.5 to pH 6.5, determined at 100.degree. C. with xylan as substrate;
- (b) Activity optimum at temperatures in the range 105.degree.-115.degree. C., determined at pH 5.5 with xylan as substrate.
Dependencies are inferred from the claim text.