公开(公告)号：US20180044707A1

公开(公告)日：2018-02-15

申请号：US15557300

申请日：2016-03-11

申请人： Novozymes A/S ,  Beta Renewables Spa

发明人： Jesper Frickmann ,  Johan Belfrage ,  Eric Abbate ,  David Osborn ,  Geoffrey Moxley ,  Daniele Riva ,  Piero Otonello ,  Simone Ferrero ,  Micol Purrotti ,  Stefano Paravisi ,  Chiara Prefumo

IPC分类号： C12P19/14 ,  C12P19/02

CPC分类号： C12P19/14 ,  C12P7/06 ,  C12P19/02 ,  C12P2201/00 ,  C12Y302/01 ,  C12Y302/01008 ,  C12Y302/01037 ,  Y02E50/17

摘要： The invention relates to processes of multi-stage hydrolysis where different enzyme compositions are added in at least two stages of hydrolysis. In a first stage, a first enzyme composition of xylanase, a beta-xylosidase and an endoglucanase is added, followed by a latter stage in which a second enzyme composition, a cellulolytic enzyme composition, is added. Also provided are processes for obtaining hydrolysis products and fermentation products using processes of the invention.

公开(公告)号：US20180051306A1

公开(公告)日：2018-02-22

申请号：US15557305

申请日：2016-03-11

申请人： Novozymes A/S ,  Beta Renewables Spa

发明人： Jesper Frickmann ,  Johan Belfrage ,  Eric Abbate ,  David Osborn ,  Geoffrey Moxley ,  Daniele Riva ,  Piero Otonello ,  Simone Ferrero ,  Micol Purrotti ,  Stefano Paravisi ,  Chiara Prefumo

IPC分类号： C12P19/14 ,  C12P19/02

CPC分类号： C12P19/14 ,  C12P7/10 ,  C12P19/02 ,  C12P2203/00 ,  C12Y302/01 ,  C12Y302/01008 ,  C12Y302/01021 ,  C12Y302/01037 ,  C12Y302/01091 ,  Y02E50/16

摘要： The invention relates to processes of closing an observed gap in sugar yield between pure batch hydrolysis and a multi-stage hydrolysis containing a continuous reactor. Enzyme compositions containing varied ratios of cellulolytic composition and a hemicellulolytic composition preconditioning are used in multi-stage hydrolysis processes containing a continuous reactor in order to close the gap. Such enzyme compositions are useful in multi-stage saccharification of a lignocellulosic material, fermentation processes following multi-stage saccharification of a lignocellulosic material and in improving a glucose or xylose yield in multi-stage saccharification of a lignocellulosic material.