公开(公告)号：US20200157591A1

公开(公告)日：2020-05-21

申请号：US16633316

申请日：2018-07-31

申请人： INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE (INRA)

发明人： Bernard CATHALA ,  Jean-Guy BERRIN ,  Ana VILLARES ,  Céline MOREAU

IPC分类号： C12P19/04 ,  D21H11/18 ,  D21C5/00

摘要： Celluloses, notably nanocelluloses, and more particularly processes for manufacturing cellulose fibers and for defibrillating cellulose-based substrates. Most particularly, processes for defibrillating cellulose-based substrates and manufacturing celluloses, in particular nanocelluloses (NC), using a new family of fungal lytic polysaccharide monooxygenases (LPMOs).

公开(公告)号：US20180142084A1

公开(公告)日：2018-05-24

申请号：US15577964

申请日：2016-06-01

申请人： INSTITUT NATIONAL DE LA RECHERCHE AGRONOMIQUE-INRA

发明人： Bernard CATHALA ,  Ana VILLARES ,  Jean-Guy BERRIN ,  Celine MOREAU

IPC分类号： C08L1/02 ,  D21C5/00 ,  D21H11/04 ,  D21H11/06 ,  D21H11/20 ,  D21H25/00 ,  C12P19/04 ,  B82Y40/00

CPC分类号： C08L1/02 ,  B82Y40/00 ,  C08L1/04 ,  C12P19/04 ,  D21C5/005 ,  D21C9/007 ,  D21H11/04 ,  D21H11/06 ,  D21H11/18 ,  D21H11/20 ,  D21H17/05 ,  D21H25/005

摘要： Disclosed is a method for producing nanocelluloses from a cellulose substrate including cellulose fibers, the method including the following sequence of steps: a step of enzymatic treatment of the cellulose substrate, by bringing same into contact with at least one cleaving enzyme, then a step of mechanical treatment of the cellulose substrate subjected to the step of enzymatic treatment, in order to delaminate the cellulose fibres and obtain the nanocelluloses. The at least one cleaving enzyme is chosen from the enzymes belonging to the family of lytic polysaccharide monooxygenases (LPMOs) capable of achieving cleavage in the presence of an electron donor. Also disclosed are the nanocelluloses obtained according to the method.