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US 2016/0237618 A1Published application
Enzymatic bleaching of paper pulp
AssigneeNovozymes A/S
InventorsBjoern Lennart Pierre Alexander Cassland, Henrik Lund, Christiane Liers, Rene Ullrich, Marek Jan Pecyna
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Abstract
The use of a GH78 enzyme in the bleaching of pulp for preparing paper materials, such as paper, linerboard, corrugated paperboard, tissue, towels, corrugated containers and boxes.
Claims14
A method for increasing the brightness and/or decreasing the kappa number of a paper pulp, comprising contacting the paper pulp with a GH78 enzyme, wherein the GH78 enzyme
- a) belongs to glycoside hydrolase family 78,
- b) exhibits esterase and rhamnosidase activities and
- c) consists or comprises an amino acid sequence with at least 60% identity to the amino acid sequence of SEQ ID NO:
- 1.
1 more element
A bleaching composition, comprising a paper pulp and a GH78 enzyme, wherein the GH78 enzyme
- a) belongs to glycoside hydrolase family 78,
- b) exhibits esterase and rhamnosidase activities and
- c) consists or comprises an amino acid sequence with at least 60% identity to the amino acid sequence of SEQ ID NO:
- 1.
1 more element
(canceled)
Dependencies are inferred from the claim text.