Disaccharide Patents (Class 435/100)
  • Publication number: 20110045544
    Abstract: The present invention relates to the production of sugar hydrolysates from cellulosic material. The method may be used e.g. for producing fermentable sugars for the production of bioethanol from lignocellulosic material. Cellulolytic enzymes and their production by recombinant technology is described, as well as uses of the enzymes and enzyme preparations.
    Type: Application
    Filed: November 2, 2010
    Publication date: February 24, 2011
    Applicant: Roal OY
    Inventors: Jari Vehmaanperä, Marika Alapuranen, Terhi Puranen, Matti Siika-Aho, Jarno Kallio, Satu Hooman, Sanni Voutilainen, Teemu Halonen, Liisa Viikari
  • Publication number: 20110033896
    Abstract: The present invention relates to a method for manufacturing an aqueous glucose solution from the starch components of Triticeae grains, for example from rye, triticale or in particular wheat grains. The invention also relates to a glucose-based fermentation method for manufacturing organic compounds in which the glucose manufactured for fermentation is produced from the starch components of Triticeae grains by way of a method according to the invention.
    Type: Application
    Filed: April 9, 2009
    Publication date: February 10, 2011
    Applicant: BASF SE
    Inventors: Matthias Boy, Stephan Freyer, Julia Brodersen
  • Patent number: 7883873
    Abstract: The present invention provides a sugar chain synthesizer capable of continuously reacting sugar chains when a plurality of sugar chains are successively reacted. The sugar chain synthesizer of the present invention includes a plurality of vessels containing respective sugar nucleotide solutions, a plurality of vessels containing respective glycosyltransferases, and a reactor containing a primer that is a water-soluble polymer, into which the above described sugar nucleotide solution and glycosyltransferase are introduced. In the present invention, components in a reaction solution obtained in the reactor are separated through an ultrafiltration column, and a reaction product is then returned to the above described reactor, so as to continuously synthesize sugar chains. Although it is a complicated synthesis of sugar chains, it becomes possible to carry out such synthesis continuously and automatically.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: February 8, 2011
    Assignee: Hitachi High-Technologies Corporation
    Inventors: Masanori Takaki, Kuriko Yamada, Kisaburo Deguchi, Hiroaki Nakagawa, Shinichiro Nishimura
  • Publication number: 20110020867
    Abstract: Improved constructs for increasing efficiency of transformation of thermophilic host cells for production of carbon-based products of interest and methods for producing carbon-based products of interest are provided.
    Type: Application
    Filed: July 20, 2010
    Publication date: January 27, 2011
    Applicant: JOULE UNLIMITED, INC.
    Inventors: Nikos B. Reppas, Brian D. Green
  • Publication number: 20110008849
    Abstract: The present invention relates to novel lactose phosphorylase enzymes and the uses thereof. More specifically, the invention relates to lactose phosphorylase enzymes created by mutation of a cellobiose phosphorylase from Cellulomonas uda. By introducing mutations in this enzyme, the activity can be switched from cellobiose phosphorylase into lactose phosphorylase.
    Type: Application
    Filed: December 19, 2008
    Publication date: January 13, 2011
    Inventors: Tom Desmet, Manu De Groeve, Wim Soetaert
  • Publication number: 20110003345
    Abstract: The present invention includes compositions and methods for making and using an isolated cyanobacterium that includes a portion of an exogenous bacterial cellulose operon sufficient to express bacterial cellulose, whereby the cyanobacterium produces extracellular glucose. The compositions and methods of the present invention may be used as a new global crop for the manufacture of cellulose, CO2 fixation, for the production of alternative sources of conventional cellulose as well as a biofuel and precursors thereof.
    Type: Application
    Filed: September 8, 2010
    Publication date: January 6, 2011
    Applicant: Board of Regents, The University of Texas System
    Inventors: David R. Nobles, JR., R. Malcolm Brown, JR.
  • Publication number: 20100267658
    Abstract: The present invention relates to a trehalulose-containing composition, its preparation and use.
    Type: Application
    Filed: April 15, 2009
    Publication date: October 21, 2010
    Applicant: Sudzucker Aktiengesellschaft Mannheim/Ochsenfurt
    Inventors: Wolfgang WACH, Thomas ROSE, Michael KLINGEBERG, Siegfried PETERS, Tillmann DÖRR, Stephan THEIS, Jörg KOWALCZYK, Stephan HAUSMANNS
  • Publication number: 20100261894
    Abstract: The invention relates to a method for enzyme cleavage of polysaccharides comprising a first sequence [?4)-?-D-GlcpA-(1?4)-?-L-Rhap3 sulphate-(1?]n and a second sequence [?4)-?-L-IdopA-(1?4)-?-L-Rhap3 sulphate-(1?]m, the first and second sequences respectively comprising two monosaccharide units connected by an osidic bond, wherein said method is such that: said polysaccharide sequences are provided; a microorganism capable of producing an enzyme substance of the lyase class is provided; and said enzyme substance is brought into contact with said polysaccharide sequences in such a way as to bring about cleavage of the osidic bond according to a ?-elimination reaction. The invention is characterised in that a microorganism belonging to the bacteria of the Ochrobactrum genus is chosen for producing said enzyme substance.
    Type: Application
    Filed: June 23, 2008
    Publication date: October 14, 2010
    Inventors: Redouan El Boutachfaiti, Patrice Pheulpin, Bernard Courtois, Josiane Courtois-Sambourg
  • Patent number: 7803601
    Abstract: The present invention includes compositions and methods for making and using an isolated cyanobacterium that includes a portion of an exogenous bacterial cellulose operon sufficient to express bacterial cellulose, whereby the cyanobacterium produces extracellular glucose. The compositions and methods of the present invention may be used as a new global crop for the manufacture of cellulose, CO2 fixation, for the production of alternative sources of conventional cellulose as well as a biofuel and precursors thereof.
    Type: Grant
    Filed: October 3, 2007
    Date of Patent: September 28, 2010
    Assignee: Board of Regents, The University of Texas
    Inventors: David R. Nobles, Jr., R. Malcolm Brown, Jr.
  • Publication number: 20100216195
    Abstract: A novel process is described for production of 6-acyl-sucrose comprising enzymatic acylation of sucrose by an esterifying agent including an organic acid in presence of a lipase or an esterase in a solvent in which the enzyme used is stable. Chlorinated sucrose, the high intensity sweetener trichlorogalactosucrose can be prepared by chlorination and deacylation of 6-acyl sucrose prepared by the process of this invention.
    Type: Application
    Filed: November 28, 2006
    Publication date: August 26, 2010
    Inventors: Rakesh Ratnam, Batchu Chandrashekar, Pampapathy Subramaniyam
  • Publication number: 20100196964
    Abstract: The present invention relates to a process for the production of an aqueous glucose solution from maize or maize kernels. The invention also relates to a glucose solution obtainable by this process, and to its use for the production of organic compounds. The process according to the invention comprises: a) fractionating dry milling of maize kernels, where the maize kernels are separated into a maize-starch-comprising endosperm fraction and a high-oil germ fraction and, if appropriate, a bran fraction; b) enzymatic liquefaction and saccharification of the maize starch in an aqueous suspension of the endosperm fraction, which gives an aqueous glucose solution comprising maize gluten; and c) depletion of the maize gluten and, if appropriate, any bran present from the aqueous glucose solution.
    Type: Application
    Filed: July 4, 2008
    Publication date: August 5, 2010
    Applicant: BASF SE
    Inventors: Matthias Boy, Jong-Kyu Choi, Jin Won Chung, Markus Lohscheidt, Jong In Choi, Jai Yeol Seo, Jörg Braun, Mo Se Kim, Sung-Hyun Kim, Arno Kochner
  • Publication number: 20100173044
    Abstract: Maltobionate has an antioxidative effect in food and feed products. The antioxidant can be produced directly from starch or maltose already present in the food product, using enzymatic catalyzed processes. The antioxidant production can be performed on an isolated fraction of a food product from which it can be added back to the food production process or the final food product. Alternatively, the antioxidant can be produced as an integrated part of the food production process by adding the relevant enzymes to the process.
    Type: Application
    Filed: July 18, 2008
    Publication date: July 8, 2010
    Applicant: Novozymes A/S
    Inventor: Per Munk Nielsen
  • Patent number: 7655836
    Abstract: The present invention relates to methods for increasing the yield of a compound produced by an organism. More particularly, the present invention relates to methods for increasing the total or soluble carbohydrate content or sweetness or increasing the content of an endogenous carbohydrate of a plant tissue by producing a sugar-metabolizing enzyme that catalyzes the conversion of an endogenous sugar (one that is normally produced in the plant) to an alien sugar (one that is not normally produced in the plant at the same developmental stage). The invention also relates to plants and plant parts that produce a sugar-metabolizing enzyme to yield an alien sugar, with the consequence of higher total fermentable carbohydrate content, and to fermentable carbohydrates and other products derived therefrom.
    Type: Grant
    Filed: May 12, 2004
    Date of Patent: February 2, 2010
    Assignee: The University of Queensland
    Inventors: Robert George Birch, Luguang Wu
  • Publication number: 20100009413
    Abstract: Nucleic acid molecules encoding an alternansucrase are provided. Moreover, vectors, host cells and plant cells transformed by the herein-described nucleic acid molecules and plants containing them are provided. Furthermore, methods are described for preparing transgenic plants which synthesize the carbohydrate alternan, because of the insertion of nucleic acid molecules encoding an alternansucrase. Moreover, methods for preparing alternan and products resulting from them are provided.
    Type: Application
    Filed: October 30, 2007
    Publication date: January 14, 2010
    Inventors: Jens Kossmann, Thomas Welsh, Martin Quanz, Karola Knuth
  • Publication number: 20090286289
    Abstract: The present invention includes cell based systems and methods for production of hyaluronate unsaturated disaccharide. The methods and systems include the use of a host cell that produces hyaluronic acid transformed with an expression vector encoding a recombinant chondroitinase AC. Expression of chondroitinase AC in the presence of native hyaluronic acid results in digestion of hyaluronic acid into multiple units of hyaluronate unsaturated disaccharide, which can then be isolated.
    Type: Application
    Filed: March 7, 2009
    Publication date: November 19, 2009
    Inventor: Danny Z. Pang
  • Publication number: 20090285933
    Abstract: The present invention concerns a new ?-galactosidase with transgalactosylating activity isolated from Bifidobacterium bifidum. The ?-galactosidase is capable of converting mellibiose to ?-galactobiose disaccharides which may be incorporated into numerous food products or animal feeds for improving gut health by promoting the growth of bifidobacteria in the gut, and repressing the growth of the pathogenic microflora.
    Type: Application
    Filed: December 19, 2006
    Publication date: November 19, 2009
    Inventors: Georgios Tzortzis, Athanasios K. Goulas, Theodoros Goulas
  • Patent number: 7618795
    Abstract: The present invention relates to a process for enzymatic hydrolysis of granular starch into a soluble starch hydrolysate at a temperature below the initial gelatinization temperature of said granular starch.
    Type: Grant
    Filed: June 25, 2004
    Date of Patent: November 17, 2009
    Assignee: Novozymes A/S
    Inventors: Anders Vikso-Nielsen, Carsten Andersen, Sven Pedersen, Carsten Hjort
  • Publication number: 20090226571
    Abstract: The present invention relates to a method for the production of at least one nonvolatile microbial metabolite in solid form by sugar-based microbial fermentation, in which process a microorganism strain which produces the desired metabolites is grown using a sugar-containing liquid medium with a monosaccharide content of more than 20% by weight based on the total weight of the liquid medium, and the volatile constituents of the fermentation liquor are subsequently largely removed, the sugar-containing liquid medium being prepared by: a1) milling selected starch feedstock from cereal grains; and a2) liquefying the millbase in an aqueous liquid in the presence of at least one starch-liquefying enzyme, followed by saccharification using at least one saccharifying enzyme, where, for liquefaction purposes, at least a portion of the millbase is liquefied by continuous or batchwise addition to the aqueous liquid.
    Type: Application
    Filed: September 6, 2006
    Publication date: September 10, 2009
    Applicant: BASF SE
    Inventors: Stephan Freyer, Markus Pompejus, Oskar Zelder, Markus Lohscheidt, Matthias Boy, Edzard Scholten
  • Patent number: 7563762
    Abstract: The present invention relates in general to the field of biotechnology. The invention particularly relates to a composition and process for stabilizing or preserving biological molecules, as well as devices that comprise correspondingly stabilized or preserved biomolecules.
    Type: Grant
    Filed: July 4, 2003
    Date of Patent: July 21, 2009
    Assignee: Micronas GmbH
    Inventor: Holger Klapproth
  • Publication number: 20090162892
    Abstract: The invention relates to a process for the production of at least one microbial metabolite having at least 3 carbon atoms or at least 2 carbon atoms and at least 1 nitrogen atom by means of sugar-based microbial fermentation, comprising: a) the preparation of a sugar-containing liquid medium with a monosaccharide content of more than 20% by weight from a starch feedstock, the sugar-containing liquid medium also comprising non-starchy solid constituents of the starch feedstock; b) the fermentation of the sugar-containing liquid medium for the production of the metabolite(s); and c) depletion or isolation of at least one metabolite from the fermentation liquor, wherein a microorganism strain which produces the desired metabolite(s) is cultivated with the sugar-containing liquid medium, said liquid medium being obtained by: a1) milling the starch feedstock; and a2) liquefying the millbase in an aqueous liquid in the presence of at least one starch-liquefying enzyme, followed by saccharification using at lea
    Type: Application
    Filed: May 27, 2005
    Publication date: June 25, 2009
    Applicant: BASF AG
    Inventors: Markus Pompejus, Stephan Freyer, Markus Lohscheidt, Oskar Zelder, Matthias Boy
  • Patent number: 7537909
    Abstract: An enzymatic process to obtain 4-O-?-D-galactopyranosyl-D-xylose useful in compositions or solutions in the in vivo evaluation of intestinal lactose activity in humans, that comprises the steps of preparing a reaction mixture of D-xylose, a ?-D-galactopyranoside and a reaction medium that comprises water buffered to a pH between 5.0 and 9.0; adding 10 to 1,000 units of ?-D-galactosidase per gram of ?-D-galactopyranoside; subjecting the reaction mixture to a reaction or a temperature between a temperature higher than the freezing point of the reaction mixture and 45° C., for 2 to 48 hours; for the reaction by deactivation of the ?-D-galactosidase; and to isolate and crystallize the fractions that contain 4-O-?-D-galactopyranosyl-D-xylose from a crystallization mixture selected between mixtures of acetone/methanol in a ratio between 5/1 to 20/1 and mixtures of acetone/water in a ratio between 5/1 to 20/1.
    Type: Grant
    Filed: December 17, 2003
    Date of Patent: May 26, 2009
    Assignees: Consejo Superior de Investigaciones Cientificas, Universidad Autonoma de Madrid
    Inventors: Francisco Javier Cañada Vicinay, Guillerno Corrales Morales, Alfonso Fernández-Mayoralas Alvarez, Manuel Martín Lomas, Juan José Aragón Reyes
  • Publication number: 20090110770
    Abstract: The present invention concerns a ?-galactosidase with transgalactosylating activity isolated from Bifidobacterium bifidum. The ?-galactosidase is capable of converting lactose to a mixture of oligosaccharides which are ?-linked and unexpectedly produces the ?-linked disaccharide galactobiose. The mixture may be incorporated into numerous food products or animal feeds for improving gut health by promoting the growth of bifidobacteria in the gut, and repressing the growth of the pathogenic microflora.
    Type: Application
    Filed: January 23, 2007
    Publication date: April 30, 2009
    Inventors: Georgios Tzortzis, Athanasios K. Goulas, Theodoros Goulas
  • Publication number: 20090053776
    Abstract: The present invention is directed to methods and systems of producing neoagarobiose, useful in whitening melanoma cells and in cosmetics, using polypeptides having neoagarobiosebiohydralase activity, including Aga86E from Saccharophagus degradans. The reaction can be enhanced by including other agarases, including Aga16B, also from S. degradans.
    Type: Application
    Filed: April 30, 2008
    Publication date: February 26, 2009
    Inventors: Steven W. HUTCHESON, Ronald M. WEINER, Nathan A. EKBORG
  • Patent number: 7491518
    Abstract: A novel method of very efficiently elevating the yield of oligosacchrides containing ?-galactosyl, compared with the conventional methods, which comprises treating galactose or a galactose-containing material with a specific ?-galactosidase and thus performing a dehydrocondensation reaction at a high substrate concentration. Anti-candida compositions originating in foods, having a high safety and excellent anti-candida effect and not being restricted in the supply, which contain as the active ingredient oligosacchrides obtained by treating galactose or a galactose-containing material with an ?-galactosidase and thus performing a dehydrocondensation.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: February 17, 2009
    Assignees: Amano Enzyme Inc., Bio Research Corporation of Yokohama, Ensuiko Sugar Refining Co., Ltd.
    Inventors: Masamichi Okada, Shigeharu Mori, Hiroyuki Hashimoto, Koki Fujita, Kozo Hara
  • Publication number: 20080308965
    Abstract: A novel modified thermoplastic starch is manufactured from a native starch using a polysaccharide produced by the fungus species Ophiostoma ulmi, by growing a culture in a yeast extract medium; adding the native starch; mixing, and harvesting the modified thermoplastic starch. The modified thermoplastic starch may be used in the manufacture of a biodegradable plastic which exhibits low water absorbency and high tensile strength. The plastic may be used to manufacture films or moulding products by casting, extrusion, injection, or compression techniques.
    Type: Application
    Filed: June 18, 2007
    Publication date: December 18, 2008
    Inventors: Mohini SAIN, Robert JENG, Martin HUBBES
  • Publication number: 20080299623
    Abstract: The invention relates to the implementation of enzyme-catalysed reactions in the presence of ionic liquids.
    Type: Application
    Filed: May 12, 2008
    Publication date: December 4, 2008
    Inventors: Udo Kragl, Nicole Kaftzik, Sonja Schofer, Peter Wasserscheid
  • Publication number: 20080206822
    Abstract: A sucrose phosphorylase (SP) having improved thermostability obtained by modifying a natural SP and a method for producing the SP having improved thermostability is provided. This SP having improved thermostability has an amino acid residue which is different from that of the natural sucrose phosphorylase, in at least one position selected from the group consisting of a position corresponding to position 14, a position corresponding to position 29 and a position corresponding to position 44 in motif sequence 1; a position corresponding to position 7, a position corresponding to position 19, a position corresponding to position 23 and a position corresponding to position 34 in motif sequence 2; and a position corresponding to position 19 in motif sequence 3, and wherein the enzyme activity of the SP having improved thermostability at 37° C., after heating the SP having improved thermostability in 20 mM Tris buffer (pH 7.0) at 55° C.
    Type: Application
    Filed: August 31, 2004
    Publication date: August 28, 2008
    Inventors: Kazutoshi Fujii, Masae Iiboshi, Michiyo Yanase, Hiroki Takata, Takeshi Takaha, Takashi Kuriki
  • Patent number: 7413880
    Abstract: A test kit for immunochromatography comprising a test strip and a test tube is described. The test strip comprises a detection zone for detecting an analyte in a sample. The test tube accommodates the test strip. The test tube comprises an indicator at a position corresponding to the detection zone of the test strip which is inserted into the test tube.
    Type: Grant
    Filed: January 11, 2006
    Date of Patent: August 19, 2008
    Assignee: Sysmex Corporation
    Inventors: Masako Aki, Shinya Nagai, Takeshi Imoarai
  • Publication number: 20080171367
    Abstract: The invention provides recombinant B. thetaiotaomicron GAG lyase polypeptides. The invention also provides nucleic acid molecules encoding such polypeptides, recombinant expression vectors containing B. thetaiotaomicron GAG lyase nucleic acid molecules, and host cells into which the expression vectors have been introduced. Characterization, diagnostic and therapeutic methods utilizing compositions of the invention are also provided.
    Type: Application
    Filed: November 30, 2007
    Publication date: July 17, 2008
    Applicant: MOMENTA PHARMACEUTICALS, INC.
    Inventor: James Myette
  • Publication number: 20080160582
    Abstract: The invention is directed to novel enzymes that convert sucrose to isomaltulose. More particularly, the present invention discloses novel sucrose isomerases, polynucleotides encoding these sucrose isomerases, methods for isolating such polynucleotides and nucleic acid constructs that express these polynucleotides. Also disclosed are cells, including transformed bacterial or plant cells, and differentiated plants comprising cells, which contain these sucrose isomerase-encoding polynucleotides, as well as extracts thereof. Methods of producing isomaltulose are also disclosed which use the polypeptides, polynucleotides, cells, cell extracts and plants of the invention.
    Type: Application
    Filed: February 2, 2006
    Publication date: July 3, 2008
    Applicant: The University of Queensland of St. Lucia
    Inventors: Robert George Birch, Luguang Wu
  • Publication number: 20080145899
    Abstract: The present invention relates to the enzymatic synthesis of oligosaccharides, including sialylated product saccharides. In particular, it relates to the use of recombinant cells to take up low cost precursors such as glucose, pyruvate and N-actyl-glucosamine, and to synthesize activated sugar moieties that are used in oligosaccharide synthesis. The methods make possible the synthesis of many oligosaccharides using microorganisms and readily available, relatively inexpensive starting materials.
    Type: Application
    Filed: September 19, 2005
    Publication date: June 19, 2008
    Applicant: Neose Technologies Inc
    Inventors: Karl Johnson, Noel J. Byrne, Shawn DeFrees
  • Publication number: 20080131468
    Abstract: The present invention have objects to provide an option of non-reducing saccharide by providing a novel non-reducing saccharide composed of glucose as constituents and to provide a novel enzyme forming the non-reducing saccharide, a method and process for producing the same, a DNA encoding the enzyme, a recombinant DNA and transformant comprising the DNA, a composition comprising the non-reducing saccharide, and uses thereof. The present invention solves the above objects by providing an isocyclomaltooligosaccharide(s) having a structure represented by General Formula 1, a novel isocyclomaltooligosaccharide-forming enzyme, a method and process for producing the same, a DNA encoding the enzyme, a recombinant DNA and transformant comprising the DNA, a composition comprising the isocyclomaltooligosaccharide (s) or a saccharide composition comprising the same, and uses thereof.
    Type: Application
    Filed: September 26, 2005
    Publication date: June 5, 2008
    Inventors: Hikaru Watanabe, Tomoyuki Nishimoto, Michio Kubota, Shigeharu Fukuda, Toshio Miyake
  • Publication number: 20080108113
    Abstract: The invention relates to a process for enriching trehalose from solutions, in which the enrichment is performed using an adsorbent, in which the adsorbent is an aluminosilicate. Preferably, the aluminosilicate is a zeolite. The invention further relates to the enrichment and purification of trehalose from fermentation broths, in particular as a coupled product of production by fermentation of other products of value.
    Type: Application
    Filed: March 18, 2005
    Publication date: May 8, 2008
    Applicant: BASF AG
    Inventors: Matthias Boy, Markus Pompejus, Daniela Klein, Martin Volkert, James Reuben Brown
  • Patent number: 7244582
    Abstract: A biosensor in which a carbohydrate or a derivative of a carbohydrate is used to generate a detectable signal by way of the specific binding to a protein, a virus or a cell.
    Type: Grant
    Filed: October 12, 2004
    Date of Patent: July 17, 2007
    Inventors: Kurt Nilsson, Carl-Fredrik Mandenius
  • Patent number: 7241605
    Abstract: According to the present invention, there can be provided a novel polypeptide having ?1,3-galactosyltransferase activity involved in the synthesis of type 1 sugar chains, a DNA coding for said polypeptide, a recombinant vector comprising said DNA, a transformant carrying said recombinant vector, a process for producing type 1 sugar chain-containing sugar chains and complex carbohydrates by use of said polypeptide or said transformant, an antibody recognizing said polypeptide, a method for detecting or quantifying said polypeptide by use of said antibody, a method for screening a substance correlated with said polypeptide, a method for diagnosis or treatment of cancers in the digestive system by use of said DNA or said antibody, and a method for treatment of cancers in the digestive system by use of a substance obtained by said screening method.
    Type: Grant
    Filed: February 24, 2000
    Date of Patent: July 10, 2007
    Assignee: Kyowa Hakko Kogyo Co., Ltd.
    Inventors: Hisashi Narimatsu, Soichiro Isshiki, Akira Togayachi, Katsutoshi Sasaki
  • Patent number: 7118895
    Abstract: A physiologically active substance of aglycon type, in particular, aglycon isoflavone, can be efficiently produced, without resort to any acid/alkali treatment or fermentation and substantially without changing the physical properties of a material, by treating the material with a sufficient amount of diglycosidase for a sufficient period of time at an appropriate temperature and pH so that a physiologically active substance of glycoside type contained in the material can be converted into the physiologically active substance of aglycon type. Moreover, by using diglycosidase and/or a specific enzyme preparation, the aglycon content in a protein or protein-containing food can be increased and the flavor thereof can be improved.
    Type: Grant
    Filed: March 29, 2001
    Date of Patent: October 10, 2006
    Assignee: Amano Enzyme Inc.
    Inventors: Kazutaka Tsuruhami, Atsuki Toumoto, Masataka Goto, Satoshi Koikeda
  • Patent number: 7078194
    Abstract: Mutant glycosidase enzymes are formed in which the normal nucleophilic amino acid within the active site has been changed to a nonnucleophilic amino acid. These enzymes cannot hydrolyze disaccharide products, but which can still form them. Using this enzyme, oligosaccharides are synthesized by preparing a mixture of an &agr;glycosyl fluoride and a glycoside acceptor molecule; enzymatically coupling the &agr.glycosyl fluoride to the glycoside acceptor molecule to form a glycosyl glycoside product using the mutant glycosidase enzyme; and recovering the glycosyl glycoside product. Particular enzymes include a mutant form of Agrobacterium &bgr.Glucosidase in which the normal glutamic acid residue at position 358 is replaced with an alanine residue.
    Type: Grant
    Filed: April 17, 2001
    Date of Patent: July 18, 2006
    Assignee: The University of British Columbia
    Inventors: Stephen G. Withers, Lloyd MacKenzie, Qingping Wang
  • Patent number: 6987009
    Abstract: A thermostable alpha-glycosidase derived from various Thermococcus, alcaliphilus AEDII12RA is disclosed. The enzymes are produced from native or recombinant host cells and can be utilized in the food processing industry.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: January 17, 2006
    Assignee: Diversa Corporation
    Inventors: Dennis Murphy, John Reid
  • Patent number: 6924129
    Abstract: A method for enzymatically synthesizing a polymer by combining a preselected quantity of an enzyme, a first reactant selected from polymers with at least one carboxylic acid pendant group, a second reactant selected from alcohols, i.e., polyols, in a reaction vessel; heating the reaction vessel to a preselected temperature; and maintaining the reaction vessel at the preselected temperature for a preselected time with mixing, wherein an esterification reaction results at at least one carboxylic acid pendant group of the polymer with one hydroxyl group from the polyol and results in a modified polymer.
    Type: Grant
    Filed: October 23, 2002
    Date of Patent: August 2, 2005
    Assignee: Polytechnic University
    Inventors: Riahcrd A. Gross, Bishwabhusan Sahoo
  • Patent number: 6887689
    Abstract: The present invention refers to a biosensor in which an immobolized carbohydrate or a derivative thereof is used to generate a detectable signal when a protein, a virus or a cell is bound to the carbohydrate surface. The sensor is an optical sensor, a piezoelectric sensor, an electrochemical electrode or a thermistor. A method of binding carbohydrates to a gold surface is also described.
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: May 3, 2005
    Inventors: Kurt Nilsson, Carl-Fredrik Mandenius
  • Publication number: 20040253690
    Abstract: The object of the present invention is to provide a novel process for producing isomaltose and uses thereof and is solved by providing a process for producing isomaltose characterized in that it comprises the steps of allowing &agr;-isomaltosylglucosaccharide-forming enzyme, in the presence or the absence of &agr;-isomaltosyl-transferring enzyme, to act on saccharides, which have a glucose polymerization degree of at least two and &agr;-1,4 glucosidic linkage as a linkage at the non-reducing end, to form &agr;-isomaltosylglucosaccharides, which have a glucose polymerization degree of at least three, &agr;-1,6 glucosidic linkage as a linkage at the non-reducing end, and &agr;-1,4 glucosidic linkage as a linkage other than the non-reducing end, and/or to form cyclo{→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→6)-&agr;-D-glucopyranosyl-(1→3)-&agr;-D-glucopyranosyl-(1→}; allowing isomaltose-releasing enzyme to act on the formed saccharides to release isomaltose; an
    Type: Application
    Filed: March 5, 2003
    Publication date: December 16, 2004
    Inventors: Michio Kubota, Tomoyuki Nishimoto, Takanobu Higashiyama, Hikaru Watanabe, Shigeharu Fukuda, Toshio Miyake
  • Patent number: 6825013
    Abstract: The invention relates to a recombinant DNA molecule which comprises genes for biosynthesizing acarbose and homologous pseudo-oligosaccharides; to oligonucleotide primers for the PCR amplification of the molecule; to proteins which can be obtained by expressing the genes located on a molecule; to vectors and host cells which comprise the above-mentioned DNA molecule; to proteins which are encoded by the DNA molecule; to proteins which are expressed by means of said vectors in said host cells; to processes for preparing acarbose by introducing the characterized genes into appropriate host organisms and/or eliminating these genes from the host organisms; to processes for completing the gene cluster of genes for biosynthesizing acarbose, to processes for isolating analogous gene clusters in organisms other than Streptomyces glaucescens GLA.
    Type: Grant
    Filed: August 7, 2001
    Date of Patent: November 30, 2004
    Assignee: Avantis Pharma Deutschland GmbH
    Inventor: Heinrich Decker
  • Patent number: 6800474
    Abstract: The present invention relates to a trehalose-producing microorganism and a process for producing trehalose. It also to a novel trehalose synthase protein, a trehalose synthase gene, recombinant plasmids carrying said trehalose synthase gene, and transformed microorganism with said recombinant plasmids.
    Type: Grant
    Filed: September 24, 2001
    Date of Patent: October 5, 2004
    Assignee: Cheil Jedang Corporation
    Inventors: Se Yong Lee, Eun Kyung Song, Yearn Hung Park, Sang Ho Kwon, Kwang Ho Lee, Chang Gyeom Kim, Jin Ho Lee, Sung Oh Chung, Yeong Joong Jeon
  • Patent number: 6780624
    Abstract: The present invention is directed to nucleic acids encoding glycosyltransferases, the proteins encoded thereby, and to methods for synthesizing oligosaccharides using the glycosyltransferases of the invention. In particular, the present application is directed to identification a glycosyltransferase locus of Neisseria gonorrhoeae containing five open reading frames for five different glycosyltransferases. The functionally active glycosyltransferases of the invention are characterized by catalyzing reactions such as adding Gal &bgr;1→4 to GlcNAc or Glc; adding GalNAc or GlcNAc &bgr;1→3 to Gal; and adding Gal &agr;1→4 to Gal.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: August 24, 2004
    Assignee: The Rockefeller University
    Inventor: Emil C. Gotschlich
  • Patent number: 6770478
    Abstract: A dehydrated composition is provided that includes freeze-dried erythrocytic cells. Alcohol (e.g., sterol or cholesterol) is at least partially removed from erythrocytic cells including erythrocytic membranes. After removal of at least part of the alcohol, the erythrocytic cells have a low phase transition temperature range, an intermediate phase transition temperature range, and a high phase transition temperature range. The erythrocytic cells may be loaded with an oligosaccharide (e.g., trehalose) which preserves biological properties during freeze-drying and rehydration. A process for increasing cooperativity of a phase transition of an erythrocytic cell. A process for preserving and/or increasing the survival of dehydrated erythrocytic cells, including storing dehydrated erythrocytic cells having a residual water content equal to or less than about 0.30 gram of water per gram of dry weight erythrocytic cells.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: August 3, 2004
    Assignee: The Regents of the University of California
    Inventors: John H. Crowe, Lois M. Crowe, Fern Tablin, Willem F Wolkers, Nelly M. Tsvetkova, Ann F. Oliver
  • Publication number: 20040082022
    Abstract: An artificial plasma-like substance having at least one water soluble polysaccharide oncotic agent selected from the group consisting of high molecular weight hydroxyethyl starch, low molecular weight hydroxyethyl starch, dextran 40 and dextran 70, which is buffered by lactate and has a pre-administration pH of between 4 and 6.5 is disclosed. In one embodiment, the artificial plasma-like solution may have at least two water soluble polysaccharide oncotic agents one of which is eliminated from the circulation slowly and the other of which is eliminated from the circulation quickly. Supplementation of the plasma-like solution with certain ions is described. A system for administration of the plasma-like solution to a subject wherein the system comprises a first and second solution each having particular buffers is described. Methods for the administration of the plasma-like solution are also disclosed.
    Type: Application
    Filed: August 13, 2003
    Publication date: April 29, 2004
    Inventors: Paul E. Segall, Hal Sternberg, Harold D. Waitz, Judith M. Segall
  • Publication number: 20040052781
    Abstract: A vaccine composition is disclosed that comprises polypeptides and fragments of polypeptides containing histidine triad residues or coiled-coil regions, some of which polypeptides or fragments lie between 80 and 680 residues in length. Also disclosed are processes for preventing infection caused by S. pneumoniae comprising administering of vaccine compositions.
    Type: Application
    Filed: April 14, 2003
    Publication date: March 18, 2004
    Inventors: Leslie S. Johnson, John E. Adamou
  • Patent number: 6667165
    Abstract: Methods for improving sensitivity and specificity of polynucleotide synthesis are disclosed. The method includes reversibly blocking thermophilic polymerase activity with non-nucleic acid polyanions in a temperature dependent manner. The methods control target specific primer extension throughout all stages of a DNA or RNA amplification reaction. Corresponding compositions and kits are disclosed.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: December 23, 2003
    Assignee: Eppendorf AG
    Inventor: Lars-Erik Peters
  • Patent number: RE39245
    Abstract: The present invention relates to simplified synthesis, new carbohydrate-based products and practical use of different carbohydrate-based products. Examples of these are (Gal?1-3Gal), GlcNAc?1-3Gal, ?- or ?-glycosides thereof, Gal?1-3Gal- containing tri-, or higher oligosaccharides, ?- or ?-glycosides thereof, GlcNAc?1-3Gal containing tri-, tetra-, or higher oligosaccharides, and derivatives and/or ?- or ?-glycosides thereof, Gal?1-3GalGlcNAc?1-3Gal, ?- or ?-glycosides thereof, Gal?1-3Gal?1-4GlcNAc?1-3Gal?1-4Glc, or other higher oligosaccharides containing the Gal?1-3Gal-structure, ?- or ?-glycosides thereof, modified carbohydrates, di-, tri-, oligo-, or polyfunctional products containing carbohydrate structures, and the use of the products for synthesis, affinity purification, diagnostic applications and therapy.
    Type: Grant
    Filed: December 23, 1996
    Date of Patent: August 22, 2006
    Assignee: Procur AB
    Inventor: Kurt Nilsson
  • Patent number: RE41461
    Abstract: A single, reproducible scheme to simultaneously purify all three of the heparin lyases from F. heparinum to apparent homogeneity is disclosed herein. The kinetic properties of the heparin lyases have been determined as well as the conditions to optimize their activity and stability. Mono-clonal antibodies to the three heparinases are also described and are useful for detection, isolation and characterization of the heparinases.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: July 27, 2010
    Assignees: Massachusetts Institute of Technology, University of Iowa Research Foundation
    Inventors: Daniel L. Lohse, Robert J. Linhardt, Ramnath Sasisekharan, Charles L. Cooney, Robert S. Langer