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US 2024/0182938 A1Published application
Process for the preparation of a sugar product and a fermentation product
AssigneeVersalis S.P.A.
InventorsMaaike APPELDOORN, Bertus NOORDAM
Life of this patent
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Abstract
There is a process for the preparation of a sugar product from cellulosic material and a process for the preparation of a fermentation product from cellulosic material.
Claims13
Process for the preparation of a sugar product from cellulosic material, comprising the following steps:
- a) enzymatic hydrolysis of the cellulosic material using an enzyme composition to obtain a sugar product, wherein oxygen is added during at least part of the enzymatic hydrolysis in an amount that xylonic acid is formed in an amount of 500 to 1100 μmol xylonic acid/kg xylan in the cellulosic material per hour, and
- b) optionally, recovery of the sugar product.
Process for the preparation of a fermentation product from cellulosic material, comprising the following steps:
- a) enzymatic hydrolysis of the cellulosic material using an enzyme composition to obtain a sugar product, wherein oxygen is added during at least part of the enzymatic hydrolysis in an amount that xylonic acid is formed in an amount of 500 to 1100 μmol xylonic acid/kg xylan in the cellulosic material per hour,
- b) fermentation of the hydrolysed cellulosic material to produce a fermentation product, and
- c) optionally, recovery of the fermentation product.
Dependencies are inferred from the claim text.