Process for the selective modification of carbohydrates by...

Paper making and fiber liberation – Processes and products – Non-fiber additive

Reexamination Certificate

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Details

C162S176000, C162S177000, C162S072000, C162S078000, C435S275000, C435S278000, C536S124000, C008S181000

Reexamination Certificate

active

07138035

ABSTRACT:
The present invention relates to an environmentally friendly process for the selective oxidation of carbohydrates. The process comprises the addition of a hydroperoxide, including hydrogen peroxide, to a carbohydrate having primary alcohol groups, particularly including polysaccharides, wherein said carbohydrate is contact with a nitroxyl radical mediator and the process is catalyzed by a peroxidase enzyme in the presence of halide ions.

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