PROCESS FOR ENZYMATIC HYDROLYSIS OF LIGNOCELLULOSIC MATERIAL AND FERMENTATION OF SUGARS
收藏国家林业和草原科学数据中心2023-02-12 更新2024-03-07 收录
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资源简介：
The invention relates to a process for the preparation of a fermentation product from lignocellulosic material， comprising the following steps: * 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 LPMO， and optionally purifying the hydrolysed lignocellulosic material， * d) fermentation of the hydrolysed lignocellulosic material to produce a fermentation product， and * e) optionally， recovery of a fermentation product， * wherein the amounts of formed hydrolysed oxidation products at the end of the enzymatic hydrolysis by the oxidation by LPMO of the lignocellulosic material containing cellulose and/or cello-oligosaccharides is kept between 3 to 80 g/kg glucan present in the lignocellulosic material by adding a suitable amount of oxygen after the pre-treatment and before and/or during the enzymatic hydrolysis to the lignocellulosic material， preferably the formed hydrolysed oxidation product is gluconic acid， an aldonic acid and/or geminal diol， more preferably the hydrolysed oxidation product is gluconic acid.
提供机构：
国家林业和草原科学数据中心
创建时间：
2023-02-12
