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公开(公告)号：US08178581B2
公开(公告)日：2012-05-15
申请号：US12722298
申请日：2010-03-11
CPC分类号： A01N37/02 , A01N37/16 , A01N37/36 , A01N59/00 , A61L2/186 , C12P7/40 , C12P7/62 , A01N63/02 , A01N2300/00
摘要： A process is provided for producing peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted with an inorganic peroxide, such as hydrogen peroxide, in the presence of an enzyme catalyst having perhydrolysis activity. The present perhydrolase catalysts are classified as members of the carbohydrate esterase family 7 (CE-7) based on the conserved structural features. Further, disinfectant formulations comprising the peracids produced by the processes described herein are provided.
摘要翻译： 提供了从羧酸酯制备过氧羧酸的方法。 更具体地说，羧酸酯与无机过氧化物如过氧化氢在具有过水解活性的酶催化剂存在下反应。 基于保守的结构特征，本发明的过水解酶催化剂被分类为碳水化合物酯酶家族7（CE-7）的成员。 此外，提供包含通过本文所述方法生产的过酸的消毒剂制剂。
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公开(公告)号：US20110236338A1
公开(公告)日：2011-09-29
申请号：US13070144
申请日：2011-03-23
IPC分类号： A61L2/16 , C12N15/63 , C12N1/00 , C12N9/18 , C12P7/24 , C07H21/04 , A01N37/16 , D21C9/16 , D06L3/02 , A01P1/00
CPC分类号： C12N9/18
摘要： An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
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公开(公告)号：US20110236337A1
公开(公告)日：2011-09-29
申请号：US13070135
申请日：2011-03-23
IPC分类号： C12N9/18 , C12N15/63 , C12N1/00 , C12P7/24 , C07H21/04 , A61L2/16 , A61L9/00 , D06L3/02 , D21C9/10
CPC分类号： C12N9/18 , C11D3/38636 , C12P7/40 , C12P7/54
摘要： An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in specific activity. The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
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公开(公告)号：US07981644B2
公开(公告)日：2011-07-19
申请号：US13036740
申请日：2011-02-28
CPC分类号： C12N9/18 , A61L2202/26 , C11D3/38636 , C12P7/40
摘要： An acetyl xylan esterase variant having perhydrolytic activity is provided for producing peroxycarboxylic acids from carboxylic acid esters and a source of peroxygen. More specifically, a Thermotoga maritima acetyl xylan esterase gene was modified using error-prone PCR and site-directed mutagenesis to create an enzyme catalyst characterized by an increase in the ratio of peracetic acid formation to peracetic acid hydrolysis specific activities (PAAF/PAAH ratio). The variant acetyl xylan esterase may be used to produce peroxycarboxylic acids suitable for use in a variety of applications such as cleaning, disinfecting, sanitizing, bleaching, wood pulp processing, and paper pulp processing applications.
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公开(公告)号：US07919287B2
公开(公告)日：2011-04-05
申请号：US12429554
申请日：2009-04-24
CPC分类号： C12N9/78 , C12N9/96 , C12P7/42 , C12Y305/05001
摘要： A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst.
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公开(公告)号：US07867737B2
公开(公告)日：2011-01-11
申请号：US12429490
申请日：2009-04-24
CPC分类号： C12N9/78 , C12N9/96 , C12P7/42 , C12Y305/05001
摘要： A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst.
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公开(公告)号：US20100221797A1
公开(公告)日：2010-09-02
申请号：US12429490
申请日：2009-04-24
IPC分类号： C12P7/42
CPC分类号： C12N9/78 , C12N9/96 , C12P7/42 , C12Y305/05001
摘要： A process is provided to improve the specific activity of an enzyme catalyst having nitrilase activity when converting glycolonitrile to glycolic acid under aqueous reaction conditions. Inclusion of an effective amount of at least one amine protectant improves the specific activity and catalytic productivity of the enzyme catalyst.
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公开(公告)号：US20090143563A1
公开(公告)日：2009-06-04
申请号：US12277667
申请日：2008-11-25
IPC分类号： C08G64/00
CPC分类号： C08G64/30 , C08G64/0208
摘要： The present invention relates to the use of hydrotalcites as catalysts for the polymerization of unsubstituted or substituted trimethylene carbonate.
摘要翻译： 本发明涉及水滑石作为未取代或取代的三亚甲基碳酸酯聚合的催化剂的用途。
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89.发明申请Enzymatic production of peracids using lactobacilli having perhydrolysis activity 失效使用具有过水解活性的乳杆菌酶过量生产过酸公开(公告)号：US20070184999A1
公开(公告)日：2007-08-09
申请号：US11524870
申请日：2006-09-21
申请人： Robert Dicosimo , L. Wagner
发明人： Robert Dicosimo , L. Wagner
IPC分类号： C11D3/395
CPC分类号： C12P7/00 , C11D3/38636 , C11D3/3945 , C11D3/48 , C12P7/62
摘要： A method is provided for producing peroxycarboxylic acids from carboxylic acid esters. More specifically, carboxylic acid esters are reacted in situ with an inorganic peroxide such as hydrogen peroxide in the presence of a perhydrolase catalyst derived from a Lactobacillus sp. to produce peroxycarboxylic acids.
摘要翻译： 提供了从羧酸酯制备过氧羧酸的方法。 更具体地，羧酸酯在无机过氧化物如过氧化氢的存在下，在来源于乳杆菌属的过水解酶催化剂的情况下原位反应。 以生产过氧羧酸。
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90.发明申请Method for the production of glycolic acid from ammonium glycolate by direct deammoniation 审中-公开通过直接去氨作用从乙醇酸铵生产乙醇酸的方法公开(公告)号：US20060160198A1
公开(公告)日：2006-07-20
申请号：US11315709
申请日：2005-12-21
申请人： Xu Li , George Fox , Joseph Zaher , Robert Dicosimo
发明人： Xu Li , George Fox , Joseph Zaher , Robert Dicosimo
IPC分类号： C12P7/40
CPC分类号： C07C51/02 , C07C51/487 , C12P7/42 , C07C59/06
摘要： The present invention relates to a method for obtaining glycolic acid by direct deammoniation of ammonium glycolate. More specifically, water is removed from an aqueous solution of ammonium glycolate to produce the substantially anhydrous salt. Thermal salt cracking is then used to remove ammonia from the salt, producing a deammoniated product that is comprised of glycolic acid, oligomers of glycolic acid, ammonium salts of oligomers of glycolic acid, glycolamide, and unreacted ammonium glycolate. The deammoniated product can be further hydrolyzed to convert oligomers of glycolic acid to additional quantities of glycolic acid.
摘要翻译： 本发明涉及通过直接脱氨基乙醇酸获得乙醇酸的方法。 更具体地，从乙醇酸铵水溶液中除去水以产生基本上无水的盐。 然后使用热盐裂解从盐中除去氨，产生由乙醇酸，乙醇酸的低聚物，乙醇酸的低聚物的铵盐，乙醇酰胺和未反应的乙醇酸铵组成的脱氨基产物。 脱氨基产物可进一步水解以将乙醇酸的低聚物转化成额外量的乙醇酸。
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