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公开(公告)号:US20120315674A1
公开(公告)日:2012-12-13
申请号:US13335535
申请日:2011-12-22
申请人: Matthew James REALFF , Ronald W. Smith , Prabuddha Bansal , Andreas Sebastian Bommarius , Melanie Hall , Jay Hyung Lee
发明人: Matthew James REALFF , Ronald W. Smith , Prabuddha Bansal , Andreas Sebastian Bommarius , Melanie Hall , Jay Hyung Lee
CPC分类号: C13K1/02 , C08H8/00 , C12P19/02 , C12P19/14 , C12P2201/00 , C12P2203/00 , D21C5/005
摘要: In one embodiment the instant invention generally pertains to a method for producing glucose for fermentation. The method comprises first treating a biomass comprising a lignocellulosic material with a mixture comprising SO2 and steam at reaction conditions sufficient to produce a composition mixture comprising cellulose suitable for enzymatic hydrolysis. Specifically, the temperature, residence time, and SO2 concentration may be selected by calculating a crystallinity index (CrI) of the biomass and using the calculated crystallinity index as an indicator of enzymatic hydrolysis rate. In this manner cellulose may be enzymatically hydrolyzed glucose for aerobic or anaerobic fermentation.
摘要翻译: 在一个实施方案中,本发明一般涉及用于发酵葡萄糖的方法。 该方法包括在足以产生包含适合于酶水解的纤维素的组合物混合物的反应条件下,首先用包含SO 2和蒸汽的混合物处理包含木质纤维素材料的生物质。 具体地,可以通过计算生物质的结晶度(CrI)并使用计算的结晶度指数作为酶水解速率的指标来选择温度,停留时间和SO 2浓度。 以这种方式,纤维素可以是酶水解的葡萄糖用于需氧或厌氧发酵。
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公开(公告)号:US20110247609A1
公开(公告)日:2011-10-13
申请号:US12960241
申请日:2010-12-03
CPC分类号: D21C5/005 , C08B1/00 , C08H8/00 , C08L1/02 , C12P2201/00 , C12Y302/01091
摘要: The present invention is a process for treating a feedstock comprising holocellulose. The process comprises mixing the feedstock with a solution comprising cellulose binding domains to form a mixture. The mixture is then subjected to conditions sufficient to reduce the crystallinity of holocellulose. Subsequent enzymatic hydrolysis may show an improved rate and/or fermentable sugar yield as compared to processes which do not employ the process.
摘要翻译: 本发明是一种用于处理包含全纤维素的原料的方法。 该方法包括将原料与包含纤维素结合域的溶液混合以形成混合物。 然后将混合物进行足以降低全纤维素结晶度的条件。 与不使用该方法的方法相比,随后的酶水解可以显示出改善的速率和/或可发酵的糖产率。
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公开(公告)号:US20110244499A1
公开(公告)日:2011-10-06
申请号:US12942906
申请日:2010-11-09
申请人: Matthew James Realff , Ronald W. Smith , Prabuddha Bansal , Andreas Sebastian Bommarius , Melanie Hall , Jay Hyung Lee
发明人: Matthew James Realff , Ronald W. Smith , Prabuddha Bansal , Andreas Sebastian Bommarius , Melanie Hall , Jay Hyung Lee
CPC分类号: C08H8/00 , C12P19/02 , C12P19/14 , C12P2203/00 , C13K1/02 , G01N21/3577
摘要: In one embodiment the instant invention generally pertains to a method for producing glucose for fermentation. The method comprises first treating a biomass with acid and heat under conditions sufficient to produce a composition mixture comprising cellulose suitable for enzymatic hydrolysis. Next, at least a portion of the cellulose of step (a) is enzymatically hydrolyzed under conditions sufficient to form a composition comprising glucose. The glucose is then fermented. Advantageously, one or more reaction conditions are more efficient because they are selected by first measuring an initial hydrolysis rate of said biomass and then selecting one or more appropriate reaction conditions based upon said initial hydrolysis rate.
摘要翻译: 在一个实施方案中,本发明一般涉及用于发酵葡萄糖的方法。 该方法包括首先在足以产生包含适于酶水解的纤维素的组合物混合物的条件下用酸和热处理生物质。 接下来,步骤(a)的纤维素的至少一部分在足以形成包含葡萄糖的组合物的条件下进行酶水解。 然后将葡萄糖发酵。 有利地,一个或多个反应条件更有效,因为它们是通过首先测量所述生物质的初始水解速率,然后基于所述初始水解速率来选择一个或多个适当的反应条件来选择的。
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公开(公告)号:US09631057B2
公开(公告)日:2017-04-25
申请号:US12942906
申请日:2010-11-09
申请人: Matthew James Realff , Ronald W. Smith , Prabuddha Bansal , Andreas Sebastian Bommarius , Melanie Hall , Jay Hyung Lee
发明人: Matthew James Realff , Ronald W. Smith , Prabuddha Bansal , Andreas Sebastian Bommarius , Melanie Hall , Jay Hyung Lee
CPC分类号: C08H8/00 , C12P19/02 , C12P19/14 , C12P2203/00 , C13K1/02 , G01N21/3577
摘要: In one embodiment the instant invention generally pertains to a method for producing glucose for fermentation. The method comprises first treating a biomass with acid and heat under conditions sufficient to produce a composition mixture comprising cellulose suitable for enzymatic hydrolysis. Next, at least a portion of the cellulose of step (a) is enzymatically hydrolyzed under conditions sufficient to form a composition comprising glucose. The glucose is then fermented. Advantageously, one or more reaction conditions are more efficient because they are selected by first measuring an initial hydrolysis rate of said biomass and then selecting one or more appropriate reaction conditions based upon said initial hydrolysis rate.
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公开(公告)号:US08506717B2
公开(公告)日:2013-08-13
申请号:US12960241
申请日:2010-12-03
IPC分类号: C13K1/02
CPC分类号: D21C5/005 , C08B1/00 , C08H8/00 , C08L1/02 , C12P2201/00 , C12Y302/01091
摘要: The present invention is a process for treating a feedstock comprising holocellulose. The process comprises mixing the feedstock with a solution comprising cellulose binding domains to form a mixture. The mixture is then subjected to conditions sufficient to reduce the crystallinity of holocellulose. Subsequent enzymatic hydrolysis may show an improved rate and/or fermentable sugar yield as compared to processes which do not employ the process.
摘要翻译: 本发明是一种用于处理包含全纤维素的原料的方法。 该方法包括将原料与包含纤维素结合域的溶液混合以形成混合物。 然后将混合物进行足以降低全纤维素结晶度的条件。 与不使用该方法的方法相比,随后的酶水解可以显示出改善的速率和/或可发酵的糖产率。
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