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公开(公告)号：US11008598B2
公开(公告)日：2021-05-18
申请号：US15550525
申请日：2016-03-16
申请人： Iogen Corporation
发明人： Brian Foody , Jeffrey S. Tolan
摘要： Provided herein is a process for producing a fermentation product from a lignocellulosic feedstock. The process comprises soaking a lignocellulosic feedstock in an aqueous solution to produce a soaked feedstock. The soaked feedstock is at least partially dewatered and the at least partially dewatered feedstock is subjected to pretreating. The pretreatment chemical is sulfur dioxide, sulfurous acid or a combination thereof and can be added to the process at any stage prior to and/or during pretreatment. The pretreated feedstock composition is fed to an enzymatic hydrolysis conducted at a temperature that is higher than 58° C. The cellulose in the pretreated feedstock composition is hydrolyzed with cellulase enzymes in the presence of the dissolved solids to produce glucose. The glucose is fermented to produce the fermentation product.
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公开(公告)号：US10858712B2
公开(公告)日：2020-12-08
申请号：US16104513
申请日：2018-08-17
申请人： Renmatix, Inc.
发明人： Srinivas Kilambi , Kiran L. Kadam
摘要： Methods are disclosed for the continuous treatment of biomass comprising a pretreatment step, wherein said biomass is contacted with a first supercritical, near-critical, or sub-critical fluid to form a solid matrix and a first liquid fraction; and a hydrolysis step, wherein said solid matrix formed in said pretreatment step is contacted with a second supercritical or near-supercritical fluid to produce a second liquid fraction and an insoluble lignin-containing fraction. Also disclosed are apparatuses for the continuous conversion of biomass comprising a pretreatment reactor and a hydrolysis reactor associated with said pretreatment reactor.
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公开(公告)号：US10711399B2
公开(公告)日：2020-07-14
申请号：US14716247
申请日：2015-05-19
IPC分类号： D21C9/10 , D21C9/16 , D21C1/00 , D06L1/12 , D21H11/12 , D21C5/02 , D06L4/18 , D21H11/14 , D06L4/13 , D06L4/12 , D06L4/10 , D01C1/00
摘要： The present invention is directed to a method for scouring and increasing the brightness of non-wood fibers. The method comprises forming a mixture of non-wood fibers, exposing the mixture to a scouring liquor and a scouring agent comprising oxygen gas to form a scouring mixture, and scouring the scouring mixture by radially circulating the scouring liquor throughout the scouring mixture to provide scoured fibers.
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公开(公告)号：US10584445B2
公开(公告)日：2020-03-10
申请号：US16250130
申请日：2019-01-17
申请人： Xyleco, Inc.
发明人： Marshall Medoff
摘要： Irradiated lignocellulosic or cellulosic materials are provided which contain carboxylic acid groups and/or other functional groups not present in a naturally occurring cellulosic or lignocellulosic material from which the irradiated material was obtained.
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公开(公告)号：US20190218721A1
公开(公告)日：2019-07-18
申请号：US16250130
申请日：2019-01-17
申请人： Xyleco, Inc.
发明人： Marshall Medoff
摘要： Irradiated lignocellulosic or cellulosic materials are provided which contain carboxylic acid groups and/or other functional groups not present in a naturally occurring cellulosic or lignocellulosic material from which the irradiated material was obtained
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公开(公告)号：US20180179704A1
公开(公告)日：2018-06-28
申请号：US15127693
申请日：2015-03-20
CPC分类号： D21C1/10 , C12P7/10 , C12P7/14 , C12P7/16 , C12P19/02 , C12P19/14 , C12P2201/00 , C12P2203/00 , C13K1/02 , D21C1/00 , D21C1/04 , D21C5/005 , Y02E50/16 , Y02E50/17
摘要： Provided herein is a process for producing an alcohol from a sugar cane derived cellulosic feedstock comprising: subjecting the sugar cane derived cellulosic feedstock comprising bagasse, leaves, tops, or any combination thereof, to silica removal selected from processes comprising sieving, screening, washing, cyclone separation or any combination thereof. The bagasse, leaves or tops, or any combination thereof, from which at least a portion of the silica has been removed is treated in one or more processing stages to produce sugar, wherein the undissolved solids content of a slurry during said processing stages reaches a weight percent of at least 15%. Thereafter the sugar is fermented with yeast or bacteria to produce the alcohol and the alcohol is concentrated and recovered.
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公开(公告)号：US20180037915A1
公开(公告)日：2018-02-08
申请号：US15550525
申请日：2016-03-16
申请人： Iogen Corporation
发明人： Brian Foody , Jeffrey S. Tolan
CPC分类号： C12P19/02 , C12P7/02 , C12P7/10 , C12P19/14 , C12P2203/00 , D21C1/00 , D21C1/04 , D21C5/005 , Y02E50/16
摘要： Provided herein is a process for producing a fermentation product from a lignocellulosic feedstock. The process comprises soaking a lignocellulosic feedstock in an aqueous solution to produce a soaked feedstock. The soaked feedstock is at least partially dewatered and the at least partially dewatered feedstock is subjected to pretreating. The pretreatment chemical is sulfur dioxide, sulfurous acid or a combination thereof and can be added to the process at any stage prior to and/or during pretreatment. The pretreated feedstock composition is fed to an enzymatic hydrolysis conducted at a temperature that is higher than 58° C. The cellulose in the pretreated feedstock composition is hydrolyzed with cellulase enzymes in the presence of the dissolved solids to produce glucose. The glucose is fermented to produce the fermentation product.
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公开(公告)号：US09663896B2
公开(公告)日：2017-05-30
申请号：US14930701
申请日：2015-11-03
申请人： Valmet AB
发明人： Ismo Rosengren , Petteri Kuusisto , Lari Lammi
CPC分类号： D21C1/02 , D21C1/00 , D21C7/12 , D21C11/00 , D21C11/0007
摘要： The method is for producing pulp. More particularly, a displacement batch cooking process comprises recovery of a first treatment liquid by draining of the digester, preferably not using a displacement liquid. The method may preferably be used in a prehydrolysis step, wherein the recovery of the by-products is improved. In the recovery step, after the target P-factor in the prehydrolysis stage is reached, the hydrolysate is withdrawn by draining in at least one phase obtaining a strong first liquid and thereafter any residual hydrolysate may be displaced.
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9.发明授权Polypeptides having alpha-glucuronidase activity and polynucleotides encoding same 有权具有α-葡糖醛酸糖苷酶活性的多肽和编码该多肽的多核苷酸公开(公告)号：US08735128B2
公开(公告)日：2014-05-27
申请号：US12511371
申请日：2009-07-29
申请人： Michelle Maranta , Kimberly Brown
发明人： Michelle Maranta , Kimberly Brown
CPC分类号： C12Y302/01139 , C12N9/2402
摘要： The present invention relates to isolated polypeptides having alpha-glucuronidase activity and isolated polynucleotides encoding the polypeptides. The invention also relates to nucleic acid constructs, vectors, and host cells comprising the polynucleotides as well as methods of producing and using the polypeptides.
摘要翻译： 本发明涉及具有α-葡糖醛酸糖苷酶活性的分离多肽和编码多肽的分离的多核苷酸。 本发明还涉及包含多核苷酸的核酸构建体，载体和宿主细胞以及产生和使用多肽的方法。
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公开(公告)号：US20140124151A1
公开(公告)日：2014-05-08
申请号：US14150649
申请日：2014-01-08
申请人： Xyleco, Inc.
发明人： Marshall Medoff
IPC分类号： D21C1/00
摘要： Irradiated lignocellulosic or cellulosic materials are provided which contain carboxylic acid groups and/or other functional groups not present in a naturally occurring cellulosic or lignocellulosic material from which the irradiated material was obtained.
摘要翻译： 提供辐射的木质纤维素或纤维素材料，其含有羧酸基团和/或其它不存在于获得辐射材料的天然纤维素或木质纤维素材料中的其它官能团。
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