CPC C12P 19/02 (2013.01) [C12P 19/14 (2013.01); C13K 1/02 (2013.01); C13K 13/00 (2013.01); C13K 13/002 (2013.01); D21C 3/26 (2013.01); C12P 2203/00 (2013.01); Y02E 50/10 (2013.01)] | 19 Claims |
1. A process for the preparation of a sugar product from lignocellulosic material, comprising:
a) optionally, pretreatment of the lignocellulosic material,
b) optionally, washing of the optionally pretreated lignocellulosic material,
c) enzymatic hydrolysis of the optionally washed and/or optionally pretreated lignocellulosic material using an enzyme composition comprising at least two cellulases and whereby the enzyme composition at least comprises a lytic polysaccharide monooxygenase (LPMO), and
d) optionally, recovery of a glucose-containing composition,
wherein the amount of formed gluconic acid at the end of the enzymatic hydrolysis by oxidation by LPMO of the lignocellulosic material containing cellulose and/or cello-oligosaccharides is kept between 3 to 10 g/kg glucan present in the lignocellulosic material by adding a suitable amount of oxygen during the enzymatic hydrolysis to the lignocellulosic material.
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