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1.发明授权公开(公告)号：US09982284B2
公开(公告)日：2018-05-29
申请号：US14631931
申请日：2015-02-26
Applicant: E I DU PONT DE NEMOURS AND COMPANY
Inventor： Kevin D Nagy , Erwin Columbus Hago , Jayarama K Shetty , Susan Marie Hennessey , Robert Dicosimo , Ling Hua , Rodrigo Ramirez , Zhongmei Tang , Zheyong Yu
CPC classification number: C12P19/14 , C12P7/06 , C12P7/14 , C12P19/02 , C12P19/04 , C12P19/16 , C12P19/18 , Y02E50/17
Abstract: A method is disclosed for hydrolyzing an alpha-1,5 glucosyl-fructose linkage in a saccharide (disaccharide or oligosaccharide) such as leucrose. This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase or glucoamylase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,5 glucosyl-fructose linkage of the saccharide. This method is useful for reducing the amount of leucrose in a filtrate isolated from a glucan synthesis reaction, for example.
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公开(公告)号：US10221378B2
公开(公告)日：2019-03-05
申请号：US15679361
申请日：2017-08-17
Applicant: E I DU PONT DE NEMOURS AND COMPANY
Inventor： Kevin D Nagy , Perry G Caimi , T Joseph Dennes , Susan Marie Hennessey , Ayrookaran J. Poulose , Jayme L Paullin
Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
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Patent Agency Ranking
3.发明授权Process for producing alpha-1,3-glucan polymer with reduced molecular weight 有权制备具有降低分子量的α-1,3-葡聚糖聚合物的方法公开(公告)号：US09169506B2
公开(公告)日：2015-10-27
申请号：US14476790
申请日：2014-09-04
Applicant: E I DU PONT DE NEMOURS AND COMPANY
Inventor： Perry G Caimi , Susan Marie Hennessey , Kevin D Nagy , Mark S Payne
CPC classification number: C12P19/18 , C08B37/0009 , C12N9/1051 , C12P19/04 , C12Y204/01
Abstract: A process for producing poly alpha-1,3-glucan with reduced molecular weight is disclosed. The process comprises contacting water, sucrose, a polar organic solvent, and a glucosyltransferase enzyme in a solution to produce poly alpha-1,3-glucan. This contacting step results in the production of poly alpha-1,3-glucan having a reduced molecular weight compared to the molecular weight of a poly alpha-1,3-glucan made in the absence of the polar organic solvent.
Abstract translation: 公开了一种生产分子量降低的聚α-1,3-葡聚糖的方法。 该方法包括在溶液中使水，蔗糖，极性有机溶剂和葡糖基转移酶接触以产生聚α-1,3-葡聚糖。 该接触步骤导致与不存在极性有机溶剂时制成的聚α-1,3-葡聚糖的分子量相比，分子量降低的聚α-1,3-葡聚糖的生产。
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公开(公告)号：US10266861B2
公开(公告)日：2019-04-23
申请号：US14967659
申请日：2015-12-14
Applicant: E I DU PONT DE NEMOURS AND COMPANY
Inventor： Kevin D Nagy , Susan Marie Hennessey , Mark S Payne , Charles R Powley , Bogdan Szostek , Hannu Koivikko , Juho Jarvinen , Daniel Eicholtz , Jyrki Kuusisto , Tapio Timo Viljava , Stephen Thomas Breske
Abstract: Disclosed herein are aqueous compositions comprising fructose and methods of production thereof. A method for producing an aqueous composition comprising fructose can comprise, for example, conducting an enzymatic reaction by contacting water, sucrose, and a glucosyltransferase enzyme that synthesizes poly alpha-1,3-glucan having at least 30% alpha-1,3-linkages. A soluble fraction produced by such a reaction comprises at least about 55% fructose on a dry weight basis, and can be separated from insoluble poly alpha-1,3-glucan product(s), thereby providing an aqueous composition comprising fructose.
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公开(公告)号：US09771548B2
公开(公告)日：2017-09-26
申请号：US14741769
申请日：2015-06-17
Applicant: E I DU PONT DE NEMOURS AND COMPANY
Inventor： Kevin D Nagy , Perry G Caimi , T Joseph Dennes , Susan Marie Hennessey , Ayrookaran J. Poulose , Jayme L Paullin
CPC classification number: C11D3/38645 , A61K8/66 , A61K8/73 , A61K2800/10 , A61Q19/00 , C11D3/225 , D06M16/00
Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with an organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
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6.发明授权公开(公告)号：US09988657B2
公开(公告)日：2018-06-05
申请号：US14631962
申请日：2015-02-26
Applicant: E I DU PONT DE NEMOURS AND COMPANY
Inventor： Kevin D Nagy , Erwin Columbus Hago , Jayarama K Shetty , Susan Marie Hennessey , Robert Dicosimo , Ling Hua , Rodrigo Ramirez , Zhongmei Tang , Zheyong Yu
CPC classification number: C12P19/14 , C12P7/06 , C12P7/14 , C12P19/02 , C12P19/04 , C12P19/16 , C12P19/18 , Y02E50/17
Abstract: A method is disclosed for hydrolyzing an alpha-1,3 or alpha-1,6 glucosyl-glucose linkage in a saccharide (disaccharide or oligosaccharide). This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,3 or alpha-1,6 glucosyl-glucose linkage of the saccharide. This method is useful for reducing the amount of oligosaccharides in a filtrate isolated from a glucan synthesis reaction, for example.
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公开(公告)号：US09714403B2
公开(公告)日：2017-07-25
申请号：US14741813
申请日：2015-06-17
Applicant: E I DU PONT DE NEMOURS AND COMPANY
Inventor： Kevin D Nagy , Ayrookaran Poulose , T Joseph Dennes , Perry G Caimi , Jayme L Paullin , Susan Marie Hennessey
CPC classification number: C11D3/38645 , A61K8/66 , A61K8/73 , A61K2800/10 , A61Q19/00 , C11D1/83 , C11D3/225 , C11D3/227
Abstract: Compositions comprising cellulase and at least one poly alpha-1,3-glucan ether compound having a degree of substitution with a positively charged organic group of about 0.05-3.0 are disclosed. Such compositions can be dry or aqueous, the latter of which can have a viscosity of at least about 10 cPs. The disclosed composition can be in the form of a personal care product, household product, or industrial product, for example. Also disclosed are a method for preparing an aqueous composition comprising cellulase and a poly alpha-1,3-glucan ether compound, and a method of treating a material such as fabric by contacting it with this aqueous composition.
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