Process for enzymatic hydrolysis of lignocellulosic material and fermentation of sugars

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United States of America Patent

PATENT NO 11434507
APP PUB NO 20200224223A1
SERIAL NO

16837637

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Abstract

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The invention relates to a process for the preparation of a sugar product from lignocellulosic material, comprising the following steps:

    a) optionally pre-treatment of the ligno-cellulosic material;b) optionally washing of the optionally pre-treated ligno-cellulosic material;c) enzymatic hydrolysis of the optionally washed and/or optionally pre-treated ligno-cellulosic material using an enzyme composition comprising at least two cellulase and whereby the enzyme composition at least comprises GH61; andd) optionally recovery of a sugar product;wherein during part of the time of the enzymatic hydrolysis, oxygen is added to the ligno-cellulosic material and during part of the time of the enzymatic hydrolysis less oxygen is added to the ligno-cellulosic material compared to the other part of the time of the enzymatic hydrolysis, preferably no oxygen is added to the ligno-cellulosic material.

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Patent Owner(s)

Patent OwnerAddress
VERSALIS S P APIAZZA BOLDRINI 1 20097 SAN DONATO MILANESE (MI) 20097

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Berkhout, Michael Petrus Jozef Echt, NL 18 191
Hiseni, Aida Echt, NL 4 43
Noordam, Bertus Echt, NL 41 293

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