From Plant Material Patents (Class 536/128)
  • Patent number: 5994532
    Abstract: The use of amylopectin-type starch obtained from potato that has been subjected to a genetical engineering modification to suppress the formation of amylose-type starch, as a finishing agent in papermaking is described.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: November 30, 1999
    Assignee: Sveriges Starkelseproducenter, Forening Upa
    Inventor: Olle Wikstrom
  • Patent number: 5985666
    Abstract: A transgenic plant cell is provided containing a DNA molecule encoding an enzyme selected from the group consisting of fructosyltransferase, glucosyltransferase B, mutants of glucosyltransferase B, glucosyltransferase C, glucosyltransferase D, mutants of glucosyltransferase D and functional fragments of each enzyme. A transgenic plant regenerated from the plant cell is also provided. A method of improving the ensilability and the nutritional value of plants is also provided comprising introducing into the cells of the plant an expression cassette comprising the above DNA molecule operably linked to a promoter functional in the cells of the plant to yield transformed plant cells, and regenerating a transformed plant from the transformed cells. The transformed plants also provide improved digestibility in ruminants.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: November 16, 1999
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventors: Fran.cedilla.ois J. Loiselle, Scott E. Nichols
  • Patent number: 5962678
    Abstract: Individual sweet glycosides are obtained from the stevia rebaudiana plant. A mixture of sweet glycosides extracted from the stevia rebaudiana plant are processed to remove impurities by using two ion exchange columns. After removing the mixed sweet glycosides from the second column with methanol the solution is dried. Upon refluxing the dried solids in a methanol solution and then cooling the solution, Stevioside precipitates out. The filtrate is further concentrated and cooled to precipitate out Rebaudioside A. This Rebaudioside A can be further purified as can the previously obtained Stevioside.
    Type: Grant
    Filed: February 6, 1998
    Date of Patent: October 5, 1999
    Assignee: Alberta Research Council
    Inventors: John Donald Payzant, James Kenneth Laidler, Robert Maurice Ippolito
  • Patent number: 5959102
    Abstract: The present invention is directed to purifying starch granules from starch-bearing crops, preferably maize, which include treating starch granules with a thermally tolerant, broad pH range proteolytic enzyme that is specific for surface-associated proteins. Also disclosed are purified starch granules which are substantially free of surface-associated proteins. Uses of the isolated starch granules are disclosed.
    Type: Grant
    Filed: June 30, 1997
    Date of Patent: September 28, 1999
    Assignee: Rutgers University
    Inventors: Bruce Wasserman, Chen Mu-Forster
  • Patent number: 5945528
    Abstract: Disclosed is the production of starch decomposition products with a narrow molecular weight distribution, based on the treatment of starch or starch derivatives using high-pressure homogenization. The starch decomposition products are obtained in high yields with a narrow molecular weight distribution.
    Type: Grant
    Filed: May 15, 1997
    Date of Patent: August 31, 1999
    Assignee: Fresenius AG
    Inventors: Klaus Sommermeyer, Michael Gorg, Klaus Henning
  • Patent number: 5936076
    Abstract: The present invention relates to the novel .alpha.-galactosylceramide represented by the formula (A): ##STR1## wherein R represents ##STR2## where R.sub.2 represents H or OH and X denotes an integer of 0-26, or R represents --(CH.sub.2).sub.7 CH.dbd.CH(CH.sub.2).sub.7 CH.sub.3 and R.sub.1 represents any one of the substituents defined by the following (a)-(e):(a) --CH.sub.2 (CH.sub.2).sub.Y CH.sub.3,(b) --CH(OH)(CH.sub.2).sub.Y CH.sub.3,(c) --CH(OH)(CH.sub.2).sub.Y CH(CH.sub.3).sub.2,(d) --CH.dbd.CH(CH.sub.2).sub.Y CH.sub.3, and(e) --CH(OH)(CH.sub.2).sub.Y CH(CH.sub.3)CH.sub.2 CH.sub.3,wherein Y denotes an integer of 5-17.The present invention also relates to an anti-tumor agent and an immunostimulator comprising one or more of the aforementioned compounds as effective ingredients.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: August 10, 1999
    Assignee: Kirin Beer Kabushiki Kaisha
    Inventors: Tatsuo Higa, Koji Akimoto, Yasuhiko Koezuka, Teruyuki Sakai, Masahiro Morita, Takenori Natori
  • Patent number: 5919921
    Abstract: Methods for recovering isoflavones and derivatives thereof from soy molasses are disclosed. In a first embodiment, a method is disclosed in which isoflavones are recovered without any significant conversion of isoflavone conjugates to other forms. In a second embodiment, a method is disclosed whereby isoflavone conjugates are converted to glucosides while in the soy material prior to their recovery. In a third embodiment, a method is disclosed in which isoflavones are converted to their aglucone form while in the soy material and prior to their recovery. Also disclosed are various isoflavone enriched products obtained from soy molasses.
    Type: Grant
    Filed: May 29, 1998
    Date of Patent: July 6, 1999
    Assignee: Protein Technologies International, Inc.
    Inventors: Doyle H. Waggle, Barbara A. Bryan
  • Patent number: 5902796
    Abstract: A bioactive Factor produced, separated and isolated from either an aloe vera leaf or a product derived and processed from an aloe leaf, such as raw aloe vera gel, freeze-dried aloe vera gel extract, bulk acetylated mannan and bulk pharmaceutical mannan, utilizing different sizing processes, their processes or preparations, and their uses. The process of sizing can be accomplished by centrifugation, filtration, ultrafiltration, chromatography, dialysis, selective precipitation, pH adjustment, irradiation, homogenizing, or a combination of such processes. Compounding or mixing two or more different bioactive Factors from aloe at various concentration ratios, each Factor with its own specific bioactivity or bioactivities, to obtain a new bioactive Factor having desired optimal additive or synergistic effects.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: May 11, 1999
    Assignee: Carrington Laboratories, Inc.
    Inventors: David G. Shand, Kenneth Yates, D. Eric Moore, Bill H. McAnalley, Santiago Rodriguez
  • Patent number: 5847109
    Abstract: An isolated galactomannan having at least 50 repeating units of mannose and galactose in a ration of between 0.5-1.0 and 1.8-1.0, and having a protein content of less than 20 wt. %, a saponin content of less than 5 wt. %, and a lipid content of less than 1 wt. %, which can be used as an active ingredient in nutraceutical and cosmetic products.
    Type: Grant
    Filed: November 19, 1996
    Date of Patent: December 8, 1998
    Assignee: Yissum Research Development Company
    Inventors: Nissim Garti, Abraham Aserin, Zecharia Madar, Boaz Sternheim
  • Patent number: 5824798
    Abstract: Genetically engineered modification of potato for suppressing formation of amylose-type starch is described.Three fragments for insertion in the antisense direction into the potato genome are also described. Moreover, antisense constructs, genes and vectors comprising said antisense fragments are described. Further a promoter for the gene coding for formation of granule-bound starch synthase and also the gene itself are described.Also cells, plants, tubers, microtubers and seeds of potato comprising said antisense construct are described.Finally, amylopectin-type starch, both native and derivatized, derived from the potato that is modified in a genetically engineered manner, as well as a method of suppressing amylose formation in potato are described.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 20, 1998
    Assignee: Amylogene HB
    Inventors: Anneli Tallberg, Per Hofvander, Per T. Persson, Olle Wikstrom
  • Patent number: 5824659
    Abstract: The present invention relates to a glucose-rich, mannose-containing oligosaccharide described herein has a molecular weight of approximately 1,000-5,000 daltons and is separated from interfering aloe components. The oligosaccharide inhibits loss of skin immunocompetency which is induced by ultraviolet irradiation. The oligosaccharide is obtained by cellulase cleavage of a precursor block polysaccharide of Aloe (FIG. 1) and has about 75% glucose, about 25% mannose and trace galactose. The precursor polysaccharide has a molecular weight of >2,000,000 daltons, is about 73% hexose with a total hexose to reducing sugar ratio of about 23:1. This polysaccharide is about 7% glucose, about 85% mannose and about 4% galactose. Also described is a method for obtaining an immunoprotective oligosaccharide by treating an Aloe extract with cellulase at a concentration of less than about 2 grams per 215 liters.
    Type: Grant
    Filed: September 4, 1996
    Date of Patent: October 20, 1998
    Assignee: Board of Regents, The University of Texas System
    Inventors: Faith M. Strickland, Ronald P. Pelley, Margaret L. Kripke
  • Patent number: 5821361
    Abstract: Methods for recovering isoflavones and derivatives thereof from soy molasses are disclosed. In a first embodiment, a method is disclosed in which isoflavones are recovered without any significant conversion of isoflavone conjugates to other forms. In a second embodiment, a method is disclosed whereby isoflavone conjugates are converted to glucosides while in the soy material prior to their recovery. In a third embodiment, a method is disclosed in which isoflavones are converted to their aglucone form while in the soy material and prior to their recovery. Also disclosed are various isoflavone enriched products obtained from soy molasses.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: October 13, 1998
    Assignee: Protein Technologies International, Inc.
    Inventors: Doyle Waggle, Barbara Bryan
  • Patent number: 5801240
    Abstract: An improved method of producing semi-refined kappa carrageenan is provided having processing steps including: (a) pre-rinsing carrageenan containing seaweed; (b) cooking the seaweed in a cooking tank containing an aqueous solution of KOH to cause desulfation at the 6-position of the galactose units of the carrageenan, to create recurring 3,6 anhydrous galactose polymers by dehydration and reorientation; (c) washing the seaweed in a neutralizing bath; (d) rinsing the seaweed in water; and, (e) drying and chopping the seaweed, the improvement being monitoring the reaction progress of the desulfation, dehydration and reorientation by continuously measuring oxidation-reduction potential of the aqueous KOH solution and, upon the occurrence of substantial reaction equilibrium of the reorientation, as indicated when the oxidation-reduction potential has reached a pre-determined constant value, stopping the reaction by removal of the seaweed from the aqueous KOH solution.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: September 1, 1998
    Assignee: Tanvest Limited
    Inventors: Christopher S. Rideout, Michael G. Bernabe
  • Patent number: 5789581
    Abstract: A malonylisoflavone glycoside present in soybean is obtained efficiently. In addition, the corresponding isoflavone glycoside and aglycone are obtained from the malonylisoflavone glycoside. An aqueous extract of soybean is adsorbed on an adsorbent, and eluted with an aqueous alcohol solution.
    Type: Grant
    Filed: April 10, 1996
    Date of Patent: August 4, 1998
    Assignee: Kikkoman Corporation
    Inventors: Masaru Matsuura, Akio Obata, Kouichiro Tobe, Nobuyuki Yamaji
  • Patent number: 5786470
    Abstract: Gels are produced from an aqueous soluble hemicellulosic starting medium which is free of glucans and obtainable from testaceous plant material. The starting medium is extracted with a non-acidic reagent and reacted with an oxidizing system comprising a peroxide, together with an oxygenase.The gel material is substantially free of glucans and pectins, and comprises a polysaccharide network comprising a matrix of polysaccharide chain segments with a multiplicity of cross-linking ferulate bridges at regularly spaced intervals along the cross-linked chain segments.
    Type: Grant
    Filed: June 25, 1996
    Date of Patent: July 28, 1998
    Assignee: Dalgety Food Ingredients Limited
    Inventors: Roderick Greenshields, Artis L. Rees
  • Patent number: 5780619
    Abstract: The invention discloses a starch graft poly(meth)acrylate blast media which is effective in paint removal. The media is superior to a physical blend of the components (i.e., starch and acrylic polymers) and to either a starch polymer or an acrylic polymer used singly. The hardness of the media is between 65-90 Shore D.
    Type: Grant
    Filed: June 26, 1996
    Date of Patent: July 14, 1998
    Assignee: U.S. Technology Corporation
    Inventor: Ruben Lenz
  • Patent number: 5777101
    Abstract: The invention relates to a process for the acetylation of lignocellulosic materials (LM) by (a) bringing the LM into intimate contact with an acetylating agent comprising acetic anhydride as the major component at a temperature from 80.degree.-140.degree. C. and (b) bringing the acetylated LM from step (a) into contact with a heated gas inert under the reaction conditions in a stripper at a temperature above 140.degree. C. and reducing the acetic acid or acetic anhydride content of the acetylated LM produced in step (a) to below 10% by weight by stripping. Products fabricated from LMs so treated are highly dimensionally stable.
    Type: Grant
    Filed: July 25, 1996
    Date of Patent: July 7, 1998
    Assignee: A-Cell Acetyl Cellulosics AB
    Inventors: Helen Louise Nelson, David Ian Richards
  • Patent number: 5777102
    Abstract: A method of producing a carrageenan-containing product comprising reacting a carrageenan-containing seaweed starting material in a substantially homogenous mixture of a solvent in which carrageenan is substantially insoluble, and an alkaline aqueous phase, ans subjecting the reacted and washed seaweed to shear stress, and a carrageenan-containing product obtainable by the method.
    Type: Grant
    Filed: June 28, 1995
    Date of Patent: July 7, 1998
    Assignee: Grindsted Products A/S (Danisco)
    Inventor: Peter Fromholt Larsen
  • Patent number: 5767271
    Abstract: Lignan glycosides having a hydroxy radical scavenging activity and represented by the formula: ##STR1## where R is a glycosyl residue selected from the group consisting of glucose, galactosr and fructose, m is an integer of 1 to 3, and n is 0 or 1.
    Type: Grant
    Filed: December 22, 1995
    Date of Patent: June 16, 1998
    Assignee: The Nisshin Oil Mills, Ltd.
    Inventors: Kenichi Kuriyama, Tateo Murui
  • Patent number: 5759597
    Abstract: The use of amylopectin-type starch obtained from potato that has been modified by genetic engineering to suppress the formation of amylose-type starch as a filling agent in the preservation of food-stuff, is described.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: June 2, 1998
    Assignee: Sveriges Starkelseproducenter, Forening UPA
    Inventor: .ANG.ke St.ang.hl
  • Patent number: 5756098
    Abstract: Methods and apparatus are provided for the recovery of organic compounds from fibrous plant materials. Organic compounds which can be recovered from the fibrous plant materials include plant metabolites, such as arabinogalactan and phenols, which can be isolated from the wood, for example, of the Western Larch and Tamarack tree varieties. In addition to the recovery of organic compounds from wood, fibrous wood products also may be isolated, in the form of a clean fiber that can be used, for example, as raw material in wood processing applications or in the manufacture of high quality paper products. In one embodiment, a fibrous plant material first is compressed, to recover a liquid exudate and a first pressed plant fiber product. Optionally, the fibrous plant material, such as wood particles, is compressed in the substantial absence of any added solvent, to produce a pure normal liquid exudate and a first pressed plant product.
    Type: Grant
    Filed: December 12, 1995
    Date of Patent: May 26, 1998
    Assignees: The University of Montana, Larex International, Inc., Crown Iron Works Company
    Inventors: Christopher H. Price, Dale Hedtke, Geoffrey N. Richards, Michael S. Tempesta
  • Patent number: 5747462
    Abstract: The present invention relates to the area of pharmacology; its objective is to solve the technical problem of inflammation, pain, pruritus and local hyperthermia in human beings and animal species. The composition and the subcompositions thereof are obtained from plants of the family Cactaceae, the main methodological steps being a set of processes: production, purification, physicochemical quantification, biotherapeutic evaluation, biopharmaceutical formulation and molecular identification. From the molecular identification a set of molecules is recognized, comprising carbohydrates and an aromatic amine, the general formulae of which are:C.sub.5 H.sub.10 O.sub.5 (RIBOSE),C.sub.6 H.sub.12 O.sub.5 (FUCOSE),C.sub.6 H.sub.12 O.sub.6 (GALACTOSE; MANNOSE; GLUCOSE),C.sub.8 H.sub.11 O.sub.2 N (1-HYDROXY-1-(4-HYDROXYPHENYL)-2-AMINOETHANE),C.sub.10 H.sub.18 O.sub.9 (RIBOFURANOSYLRIBOSE).
    Type: Grant
    Filed: August 16, 1995
    Date of Patent: May 5, 1998
    Assignee: Laboratorio CHile S.A.
    Inventor: Victoria M. Fuentes
  • Patent number: 5734046
    Abstract: A method for manufacturing limonoid glucosides that is superior in terms of industrial productivity is described. The method includes a step in which a raw material composed of citrus juice and/or molasses is passed through a flow passage equipped with an adsorbent having limonoid glucoside adsorptivity, after which the limonoid glucosides that have been adsorbed by the adsorbent in the flow passage are eluted into a solvent using a solvent capable of dissolving the limonoid glucosides, which yields a liquid containing limonoid glucosides.
    Type: Grant
    Filed: February 2, 1996
    Date of Patent: March 31, 1998
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: Yasushi Ifuku, Hisao Maeda, Masaki Miyake, Nobuya Inaba, Shigeru Ayano, Yoshihiko Ozaki, Kazuyuki Maruyama, Shin Hasegawa
  • Patent number: 5712107
    Abstract: The present invention provides methods of making paper utilizing glucans, produced by the glucosyltransferase C enzyme of the species Streptococcus mutans, instead of modified starches. The present glucans are functionally similar to the hydroxethyl modified starch and are particularly useful in the coating step of paper manufacture. The present glucans also exhibit thermoplastic properties and impart gloss to the paper during the coating step.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: January 27, 1998
    Assignee: Pioneer Hi-Bred International, Inc.
    Inventor: Scott Edward Nichols
  • Patent number: 5710260
    Abstract: Sennosides A, B and Al of the formula: ##STR1## which are substantially free from sennosides C, D and Dl, and from aloe-emodin derivatives, are prepared by a process whereina) a sennoside mixture is reduced to rhein-9-anthrone-8-glucoside and aloe-emodin-9-anthrone-8-glucoside,b) a liquid-liquid partitioning of the compounds obtained is carried out between a polar organic solvent which is only partly miscible with water and an aqueous phase andc) the rhein-9-anthrone-8-glycosides contained after the partitioning in the aqueous phase is again oxidized to the corresponding sennosides and these are recovered.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: January 20, 1998
    Assignee: Madaus AG
    Inventors: Alfons Carcasona, Wolf Grimminger, Pentti Hietala, Helga Zaeske, Klaus Witthohn
  • Patent number: 5710270
    Abstract: There is disclosed a water-soluble polysaccharide composed of rhamnose, fucose, arabinose, xylose, galactose, glucose and uronic acid, and a degree of esterification of uronic acid of not more than 50%. This water-soluble polysaccharide is useful as a protein stabilizer. A process for preparing the same and food containing the same is also disclosed.
    Type: Grant
    Filed: May 14, 1996
    Date of Patent: January 20, 1998
    Assignee: Fuji Oil Co., Ltd.
    Inventors: Hirokazu Maeda, Hitoshi Furuta, Ryuji Yoshida, Taro Takahashi, Yoko Sato, Masanori Hisakawa, Susumu Teranishi
  • Patent number: 5708162
    Abstract: Process for the preparation of low molecular weight polysaccharide ethers which can be employed in binders for improving adhesive power and film-forming properties, by oxidative degradation of relatively high molecular weight polysaccharide ethers, which comprises initially introducing a relatively high molecular weight polysaccharide ether in suspension (e.g. in a slurry), adding a perborate or a mixture of perborate and perborate activator, and carrying out the oxidative degradation at a temperature of between 25.degree. and 90.degree. C.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: January 13, 1998
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Josef Hilbig, Reinhard Doenges
  • Patent number: 5705618
    Abstract: A process is described for extracting lignans from flaxseed which comprises contacting a substantially oil-free flaxseed meal with an aliphatic alcohol solvent, e.g. a mixture of methanol or ethanol with water, to extract lignans into the alcohol solvent and separating residual solids from the lignan-rich alcohol solvent. The lignan-rich alcohol solvent is concentrated by removing solvent therefrom and the lignan concentrate obtained is subjected to a base-catalyzed hydrolysis to liberate lignans therefrom in a non-complexed form. Thereafter, the hydrolyzed concentrate is subjected to either a liquid/liquid partition, e.g. by an ethyl acetate/water system, or anion exchange to further enrich the lignans and the lignan-enriched solution thus obtained is subjected to chromatographic separation to isolate lignans at a purity of greater than 90 percent. The lignan, secoisolariciresinol diglucoside, was found in amounts of up to 20 mg per gram of defatted flaxseed.
    Type: Grant
    Filed: March 31, 1995
    Date of Patent: January 6, 1998
    Assignee: Agriculture and Agri-Food Canada
    Inventors: Neil D. Westcott, Alister D. Muir
  • Patent number: 5698200
    Abstract: A composition for controlling a plant disease caused by a plant pathogenic bacterium is disclosed. The composition comprises an activity for inhibiting the growth of the plant pathogenic bacterium and is extracted in an aqueous solvent from particles of malted cereal grain. The composition is used either in dry or wet form by application to plant parts, such as potato seed pieces, that are to be protected from the pathogenic bacteria.
    Type: Grant
    Filed: August 14, 1996
    Date of Patent: December 16, 1997
    Assignee: Lockheed Martin Idaho Technologies Company
    Inventor: Karen B. Barrett
  • Patent number: 5675000
    Abstract: The present invention provides a process for purifying the cinnamoyl-C-glycoside, 8-C-.beta.-D-?2-O-(E)-cinnamoyl!glycopyranosyl-2- ?(R)-2-hydroxy!propyl-7-methoxy-5-methyl-chromone, referred to herein as the "540 compound." In one embodiment of the present invention the 540 compound is purified by extraction from a decolorizing agent with an organic solvent. The extracted product can be further purified by high pressure liquid chromatography. In a second embodiment crude 540 compound, which has not been treated with a decolorizing agent, is purified by passage over neutral alumina or sephadex.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: October 7, 1997
    Assignee: Univera Phytoceuticals, Inc.
    Inventors: Todd Waller, Qi Jia, Abeysinghe Padmapriya
  • Patent number: 5660872
    Abstract: A method for chromatographically separating a polydispersed saccharide composition, wherein said composition is fed into a chromatography column in a metastable state. A low molecular weight saccharide-free polydispersed saccharide composition and its use in foodstuffs or preparations for producing same, are also disclosed.
    Type: Grant
    Filed: September 21, 1995
    Date of Patent: August 26, 1997
    Assignee: Raffinerie Tirlemontoise, S.A.
    Inventors: Jan Van Loo, Karl Booten, Georges Smits
  • Patent number: 5656734
    Abstract: Pectin and Pectocellulosic compositions are prepared by heating and mixing comminuted pectin-containing material to solubilize pectin. Pectin, a pectocellulosic product, or a combination thereof is then recovered. The products produced are incorporated in food and other products.
    Type: Grant
    Filed: October 30, 1995
    Date of Patent: August 12, 1997
    Assignee: Systems Bio-Industries
    Inventor: Robert M. Ehrlich
  • Patent number: 5646130
    Abstract: An oligosaccharide containing about 20 monosaccharide units is provided. This oligosaccharide designated (M.sub.9 G).sub.2 is a copolymer .beta.-D-(1.fwdarw.4) connected mannuronopyranose units and an .alpha.-L-(1.fwdarw.4) connected guluronic acid unit at a ratio of 9:1. In addition, 40-60% of the carboxylic functional groups are esterified with propanol, 2-propanol or methanol, and substantially all of the C.sub.2 carbons and about 50% of the C.sub.3 positions of the residues are sulfated, such that the resulting compound contains about 7-13% organic sulfur. The compounds are used for the prevention and therapy of thrombosis-induced ischemic vascular diseases of the heart and the central nervous system, for treating acute thrombosis-induced brain infarction and in coronary ischemia-induced angina, and for treating hyperlipoproteinemia and lowering the relative amount of cholesterol.
    Type: Grant
    Filed: June 30, 1995
    Date of Patent: July 8, 1997
    Assignee: Ocean University of Oingdao
    Inventor: Guan Hua Shi
  • Patent number: 5627269
    Abstract: Soluble polysaccharides such as pectin and carrageenan are extracted from vegetable matter by passing an extraction fluid through a fixed bed of the polysaccharide-containing vegetable material to simultaneously hydrolyze and extract the polysaccharide from the vegetable material and separate the polysaccharide-containing solution from the remaining solid vegetable material. No separate filtration step is required. A filler can optionally be added to the vegetable material to increase the rate of percolation of the extraction fluid through the bed.
    Type: Grant
    Filed: June 22, 1994
    Date of Patent: May 6, 1997
    Assignee: Hercules Incorporated
    Inventors: David C. Herak, John J. Hoglen
  • Patent number: 5606035
    Abstract: New sesaminol glucosides, which are glucosides of lignan compounds of a specified structure, are effective in preventing oxidation of lipids in an aqueous solvent. Such sesaminol glucosides are produced substantially in pure form by obtaining an aqueous extract from crushed and defatted sesame seeds, processing the extract with .beta.-glucosidase to obtain a processed sesame product which is itself an effective anti-oxidant, and make separations by liquid chromatography under specified conditions.
    Type: Grant
    Filed: July 11, 1994
    Date of Patent: February 25, 1997
    Inventors: Shunrou Kawakishi, Toshihiko Osawa
  • Patent number: 5602111
    Abstract: An agent for inducing a phytoalexin comprising a xyloglucan-oligosaccharide as an active ingredient thereof and a method for inducing a phytoalexin in a plant body comprising an application of a xyloglucan-oligosaccharide to the plant. The present invention is useful for promoting growth of a plant and maintaining freshness of a plant while a crop has been grown, or a vegetable or a fruit has been transported and/or stored.
    Type: Grant
    Filed: November 28, 1994
    Date of Patent: February 11, 1997
    Assignee: Dainippon Pharmaceutical Co., Ltd.
    Inventors: Akira Misaki, Keiji Sekiya, Kazuhiko Yamatoya
  • Patent number: 5602241
    Abstract: A method for continuously precipitating a polysaccharide dissolved in an aqueous solution wherein a non-solvent for the polysaccharide is admixed with the aqueous solution to cause the polysaccharide to precipitate from the solution. The method includes the step of simultaneously feeding the aqueous solution containing the dissolved polysaccharide and the non-solvent through respective constant flow rate-pumps to produce non-pulsating metered first and second streams which are unaffected by pressure changes in the aqueous solution or the non-solvent fed to the respective pumps. The metered streams are simultaneously introduced from the respective pumps into a rotary turbine to mix the solution and the non-solvent and precipitate the polysaccharide. The precipitated polysaccharide is cut with an interlocking cutter which comprises a fixed cutter and a rotary cutter, and a suspension of finely cut polysaccharide particles is continuously withdrawn.
    Type: Grant
    Filed: March 14, 1995
    Date of Patent: February 11, 1997
    Assignees: Shin-Etsu Chemical Co., Ltd., Shin-Etsu Bio, Inc.
    Inventors: Kazumasa Maruyama, Kazuyuki Yamamoto, Shigehiro Nagura, Taira Homma
  • Patent number: 5589591
    Abstract: This invention is composition comprising a highly purified, substantially endotoxin-free polysaccharide preparation suitable for use as a parenterally administered pharmaceutical, and the method for producing the composition. The process produces a substantially endotoxin-free polysaccharide composition using a size separation technique in which the low molecular weight impurities are removed first, with a subsequent separation of the endotoxin from the polysaccharide, again, by size separation. Suitable size separation techniques include gel fitration, or more preferably, ultrafiltration. In the preferred embodiment of the invention, the polysaccharide arabinogalactan is first ultrafiltered using a 10,000 dalton membrane; the low molecular weight impurities (<10,000 da) are discarded.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: December 31, 1996
    Assignee: Advanced Magnetics, Inc.
    Inventor: Jerome M. Lewis
  • Patent number: 5585544
    Abstract: A method of causing somatic cell hybridization between two species of algae by growing somatic algal tissue from each of the two species of algae in close proximity, in a nutrient solution, and isolating and culturing the hybrid somatic shoots that form.
    Type: Grant
    Filed: March 21, 1994
    Date of Patent: December 17, 1996
    Assignee: Northeastern University
    Inventors: Donald P. Cheney, Le Zhong Wang
  • Patent number: 5567812
    Abstract: Previously unrecognized polysaccharide products are extracted from either whole Lesquerella fendleri seed or commercially processed and oil-extracted seed meal or presscake or other seed material. Processes used include the steps of: (1) combining the seed material with an aqueous solution; (2) high speed stirring or sonification of the resultant seed material for the separation of the polysaccharide from the seed; and (3) isolation of the polysaccharide from the aqueous filtrate. The resultant polysaccharides are highly polymeric and enhance solution viscosities over a wide range of pH, bleaching and salt conditions.
    Type: Grant
    Filed: April 15, 1994
    Date of Patent: October 22, 1996
    Assignee: The United States of America, as represented by the Secretary of Agriculture
    Inventors: Thomas P. Abbott, Kenneth D. Carlson, Robert Kleiman
  • Patent number: 5561226
    Abstract: A process is described for the production of a readily water-soluble fructan as well as a well-tolerated renal diagnostic agent containing such a fructan. In the process an aqueous fructan extract obtained from parts of plants is ultrafiltered over a first membrane which retains carbohydrates and proteins with a higher molecular weight but which allows passage of fructan and the filtrate obtained in this way is then filtered in a second ultrafiltration through a membrane which retains fructan but which allows passage of salts and low-molecular substances such as monosaccharides and oligosaccharides. The fructan obtained in this way is used as a renal diagnostic agent together with physiologically tolerated buffer substances at an osmolality which corresponds to that of blood and which has a pH of 5.0 to 7.0.
    Type: Grant
    Filed: November 15, 1993
    Date of Patent: October 1, 1996
    Assignee: Laevosan Gesellschaft mbH
    Inventor: Ernst Nitsch
  • Patent number: 5550227
    Abstract: The invention relates to a method for the preparation of rhamnose from rhamnolipids, for which an acidic emulsion of the rhamnolipid is hydrolyzed at 100.degree. to 200.degree. and subsequently cooled, the aqueous phase of the resulting hydrolysate is separated from the lipid phase, its pH is raised by the addition of a basic compound, any precipitate formed is removed, the remaining solution is concentrated and either processed further directly or chromatographed on ion exchange resin, rhamnose-containing fractions being obtained as eluate, which are processed further as such or worked up into crystalline rhamnose monohydrate.
    Type: Grant
    Filed: May 26, 1994
    Date of Patent: August 27, 1996
    Assignee: S udzucker AG Mannheim/Ochsenfurt
    Inventors: Johann Mixich, Knut M. Rapp, Manfred Vogel
  • Patent number: 5547945
    Abstract: A remitting agent for nephrotic syndrome and hepatopathy symptoms is provided that which comprises water-soluble polysaccharides having poly-D-galacturonic acid as an effective constituent; polysaccharides having the following characteristic properties which are extractable from Tanjin with water or an aqueous solvent:A. Sugar content: 60 to 100%.(1) Sugar composition:40 to 80% of uronic acid (composed almost entirely of D-galacturonic acid) and10 to 30% of neutral sugars(2) Neutral sugar composition:0 to 15% of rhamnose0 to 15% of glucose25 to 55% of galactose30 to 60% of arabinose0 to 15% of mannoseB. Molecular weight: 150,000 to 300,000; the invention also provides a process for producing the above-described polysaccharides which comprises allowing an aqueous extract of Tanjin to pass through a porous polymeric resin, followed by purification through gel filtration chromatography.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: August 20, 1996
    Assignee: JCR Pharmaceuticals Co., Ltd.
    Inventors: Guoji Ye, Jun-ichi Kajihara, Sei Kirihara, Kazuo Kato, Hiroko Abe
  • Patent number: 5530112
    Abstract: A method of producing a gel material and which comprises firstly providing an aqueous soluble hemicellulosic starting medium which is free of glucans and obtainable from testaceous plant material. The starting medium is then extracted with a non-acidic reagent and reacted with an oxidizing system comprising at least one peroxide, together with at least one oxygenase (such as a peroxidase).A gel material which is obtainable from a hemicellulosic starting medium, and which is substantially free of glucans and pectins. The gel material comprises a polysaccharide network for a matrix of polysaccharide chain segments and a multiplicity of cross-linking ferulate bridges. The ferulate bridges are located at regular intervals along the cross-linked segments.
    Type: Grant
    Filed: May 13, 1994
    Date of Patent: June 25, 1996
    Assignee: GB R&D, C Limited
    Inventors: Roderick Greenshields, Artis L. Rees
  • Patent number: 5525151
    Abstract: The present invention relates to a process for preparing a low fat, transparent, stable oat protein containing aqueous solution comprising: preparing an initial stable, translucent aqueous suspension comprising water, an insoluble liquid fraction, a stable, soluble oat protein fraction, a soluble oat fat fraction, and a soluble oat carbohydrate fraction, wherein the oat fat is dissociated from the oat protein; removing the insoluble liquid fraction from the initial suspension; and recovering the stable, soluble oat protein fraction, soluble oat fat fraction, and soluble oat carbohydrate fraction in a final low fat, transparent, stable aqueous solution. The present invention further relates to the low fat, transparent, stable aqueous solution of the above process and a solid mixture containing a stable, soluble oat protein fraction in purified form which provides for a low fat, transparent, stable aqueous solution when put into solution in water.
    Type: Grant
    Filed: April 4, 1995
    Date of Patent: June 11, 1996
    Assignee: The Quaker Oats Company
    Inventors: Marvin K. Lenz, Steven D. Paisley
  • Patent number: 5521305
    Abstract: Recycling materials comprising cellulosic and synthetic fibersDescribed is a process for recycling materials comprising fiber mixtures comprising cellulose fibers, comprising the steps of:i) providing fiber mixtures comprising cellulosic fibers and fibers composed of synthetic polymers, andii) subjecting these mixtures to a microbial hydrolysis in which the cellulosic fibers are completely degraded.The process makes it possible in particular to separate fiber mixtures. For this, the microorganisms and the hydrolyzate are removed in a conventional manner following step ii), and the remaining synthetic polymers are carried off in a conventional manner to be further recycled.
    Type: Grant
    Filed: September 29, 1994
    Date of Patent: May 28, 1996
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Bernd Huber, Gerhard Stein
  • Patent number: 5518710
    Abstract: Simple and efficient methods for extracting high levels of .beta.-glucans from cereal sources are disclosed. The method employs a strong base, such as sodium hydroxide as an initial solvent. If desired, the extract can be further purified to render a .beta.-glucan preparation which can be used directly or stored for future use.
    Type: Grant
    Filed: January 11, 1994
    Date of Patent: May 21, 1996
    Assignee: University of Saskatchewan
    Inventor: Rattan S. Bhatty
  • Patent number: 5514666
    Abstract: Methods for preparing a protein-enriched pectin composition in granular form, and the use of the product in edible foodstuffs and beverages.
    Type: Grant
    Filed: July 25, 1994
    Date of Patent: May 7, 1996
    Assignee: University of Florida
    Inventors: James J. Cerda, Charles W. Burgin
  • Patent number: 5512673
    Abstract: The present invention relates to compounds represented by the following formula (I) ##STR1## (wherein R.sup.1, R.sup.2, R.sup.3, R.sup.4, and R.sup.5 independently represent a hydrogen atom or an acetyl or benzyl group, R.sup.6 represents a hydrogen atom, a hydroxyl, acetoxy, or benzyloxy group, R.sup.7 represents a hydrogen atom, or R.sup.6 and R.sup.7 together my represent another direct bond, and R.sup.8 represents a carboxyl, methoxycarbonyl, hydroxymethyl, or acetoxymethyl group) or salts thereof and a process for the preparation thereof, as well as their utilities in a method for culture, a method for the growth inhibition of moyashi roots, and a method for the growth promotion of moyashi hypocotyls.
    Type: Grant
    Filed: September 30, 1994
    Date of Patent: April 30, 1996
    Assignee: Research Development Corporation of Japan
    Inventors: Koji Hasegawa, Hideo Kakuta, Junya Mizutani
  • Patent number: 5504201
    Abstract: A process for recovering salable cellulose ether solids in an aqueous slurry from a reactor wherein such cellulose ether solids are produced, or in an aqueous slurry from a centrifuge or filter wherein a portion of the cellulose ether solids from the reactor have been removed, comprising flowing the slurry into a hydraulic cyclone at a temperature above the gel point of the cellulose ether solids in such slurry and under conditions which are tailored to the particular cellulose ether solids in the slurry and to the process by which these have been made.
    Type: Grant
    Filed: March 14, 1994
    Date of Patent: April 2, 1996
    Assignee: The Dow Chemical Company
    Inventors: Kenneth C. Reibert, Gregg L. Poppe, John G. Green