Carbohydrate Material Recovered Or Purified Patents (Class 435/274)
  • Patent number: 4745058
    Abstract: Cellulose strands are produced by causing a growing medium containing Acetobacter xylinum to flow along a straight-line path over a growing surface. Cellulose fibrils produced by the bacteria arrange themselves in strands on the growing surface. These strands can be converted into threads and/or yarns. The cellulose fibrils produced by Acetobacter xylinum can also be converted to microcrystalline cellulose.
    Type: Grant
    Filed: May 10, 1984
    Date of Patent: May 17, 1988
    Inventor: Philip M. Townsley
  • Patent number: 4742006
    Abstract: A method of producing fructose from aqueous glucose and fructose mixtures by fermenting in one step an aqueous mixture of fructose and glucose with a stable mutant of Zymomonas mobilis, and also producing the stable mutant of Zymomonas mobilis.
    Type: Grant
    Filed: November 6, 1985
    Date of Patent: May 3, 1988
    Assignee: Kernforschungsanlage Julich Gesellschaft mit beschrankter Haftung
    Inventors: Stephanie Bringer, Hermann Sahm
  • Patent number: 4729958
    Abstract: Method of improving the filterability of a microbial broth containing microbial cell matter resulting from the breaking down of cells, which comprises contacting that broth with one or more enzymes having nuclease activity; use of the method for improving the flow of a microbial polysaccharide containing fluid displacement solution which is applied in enhanced oil recovery.
    Type: Grant
    Filed: December 12, 1985
    Date of Patent: March 8, 1988
    Assignee: Shell Oil Company
    Inventors: Jan W. Drozd, Andrew J. Rye
  • Patent number: 4693982
    Abstract: Aqueous guar gum compositions having a very low content of insolubles, the compositions being formed by impregnating free-flowing solid, particulate guar gum with one or more hydrolytic enzymes and thereafter dissolving the particles of guar gum in water.
    Type: Grant
    Filed: May 22, 1985
    Date of Patent: September 15, 1987
    Assignee: Millmaster Onyx Group, Inc.
    Inventors: Walter H. Carter, Vinai K. Srivastava
  • Patent number: 4686185
    Abstract: A microorganism of a new species of the genus Streptomyces having an ability to produce chitinase has been found, and a method of producing chitinase using this microorganism is disclosed.
    Type: Grant
    Filed: July 26, 1985
    Date of Patent: August 11, 1987
    Assignee: Wakunaga Kono Kabushiki Kaisha
    Inventors: Manji Wakunaga, Yasufumi Nishimura
  • Patent number: 4682654
    Abstract: A method of recovering oil from an oil-bearing formation by fractionation, utilizing as oil-recovery means aqueous guar gum compositions having a very low content of insolubles, the compositions being formed by impregnating free-flowing solid, particulate guar gum with one or more hydrolytic enzymes and thereafter dissolving the particles of guar gum in water.
    Type: Grant
    Filed: October 9, 1986
    Date of Patent: July 28, 1987
    Assignee: Millmaster Onyx Group, Inc.
    Inventors: Walter H. Carter, Vinai K. Srivastava
  • Patent number: 4642289
    Abstract: Process for disrupting cells of a polysaccharide-producing microorganism of the genus Pseudomonas, preferably Pseudomonas sp. NCIB 11592, which contain one or more RP4 and/or RP4::Mu.sub.ts plasmids.Pseudomonas sp. NCIB 11592 containing one or more plasmids. Process for preparing polysaccharides by cultivating the latter. Process for displacing a fluid through a well and/or a permeable subsurface formation using the polysaccharides.
    Type: Grant
    Filed: August 21, 1984
    Date of Patent: February 10, 1987
    Assignee: Shell Oil Company
    Inventor: Peter R. Betteridge
  • Patent number: 4481294
    Abstract: Process for disrupting cells by contacting an aqueous, cell-containing medium with a protease enzyme, wherein the enzymic contact is preceded by contact with an ionic surfactant; the polysaccharide solutions thereby produced; and a process for displacing a fluid through a well and/or a permeable subsurface formation communicating with the well, by injecting into the well an optionally diluted, aqueous solution of such a polysaccharide.
    Type: Grant
    Filed: October 20, 1982
    Date of Patent: November 6, 1984
    Assignee: Shell Oil Company
    Inventor: John D. Downs
  • Patent number: 4478939
    Abstract: SPS--A novel pectic-like polysaccharide derived from soy plant cell walls characterized by capability to bind to proteins.SPS-ase--The carbohydrase complex capable of decomposing SPS into decomposition products incapable of attaching to protein, and method for producing SPS-ase by cultivation of an SPS-ase producing microorganism for which preferred microorganism strains are Aspergillus aculeatus CBS 101.43 and Aspergillus japonicus IFO 4408.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: October 23, 1984
    Assignee: Novo Industri A/S
    Inventors: Jens L. Adler-Nissen, Henrik Gurtler, Georg W. Jensen, Hans A. S. Olsen, Steen Riisgaard, Martin Schulein
  • Patent number: 4478940
    Abstract: Purified vegetable protein particularly from soymeal produced by enzymatic treatment to dissolve the remanence employing a novel enzyme composition agent adapted to decompose a hitherto unreported pectic-like polysaccharide capable of binding to proteins.
    Type: Grant
    Filed: December 24, 1981
    Date of Patent: October 23, 1984
    Assignee: Novo Industri A/S
    Inventors: Jens L. Alder-Nissen, Henrick Gurtler, Georg W. Jensen, Hans A. S. Olsen, Steen Riisgaard, Martin Schulein
  • Patent number: 4431734
    Abstract: The filtrability of xanthan gum aqueous solutions is improved by an enzymatic treatment in two successive steps, the first step by means of a polysaccharase and the second step by means of a protease, the operating conditions of each step being such that the corresponding enzyme is active in said step.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: February 14, 1984
    Assignee: Institut Francais du Petrole
    Inventors: Marguerite Rinaudo, Michel Milas, Norbert Kohler
  • Patent number: 4416990
    Abstract: Enzymatic treatment, in aqueous dispersion, of a xanthan gum containing bacteria cell residues and microgels, as impurities, by means of Basidiomycete cellulase, the aqueous dispersion having a pH from 3 to 7 and containing at least 0.1 equivalent/liter of at least one salt of alkali or alkaline-earth metal, said treatment being conducted at a temperature from 25.degree. to 65.degree. C., improved the injectivity and filtrability thereof.
    Type: Grant
    Filed: October 6, 1981
    Date of Patent: November 22, 1983
    Assignee: Institut Francais du Petrole
    Inventors: Marguerite Rinaudo, Michel Milas, Norbert Kohler
  • Patent number: 4410625
    Abstract: A novel Bacillus isolated from the soil is unique in its capacity to produce xanthanase, and is especially productive of the enzyme when cultured in the presence of other soil organisms. Both crude and purified xanthanases recovered from the fermentation broth effectively degrade xanthan gum. Moreover, tolerance of the Bacillus to sodium chloride levels as high as about 4%, render it useful for the in situ degradation of the heteropolysaccharide in petroleum recovery fluids and other thickened industrial brines.
    Type: Grant
    Filed: February 4, 1982
    Date of Patent: October 18, 1983
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventor: Martin C. Cadmus
  • Patent number: 4346175
    Abstract: The disclosure relates to a process for the microbiological modification of hardwood in that a microorganism, or an enzymatically active preparation thereof, specially selected for the hardwood in question, is supplied to the surface of the wood for attack thereof under carefully regulated conditions as regards temperature, relative moisture content, O.sub.2 content and CO.sub.2 content. Thereafter, the process is discontinued in a suitable manner, for example by treatment with steam or hot water, followed by drying; or by drying only.
    Type: Grant
    Filed: October 3, 1978
    Date of Patent: August 24, 1982
    Assignees: Sven-Olof Enfors, Nils Molin, Eugen Montelin
    Inventors: Sven-Olof Enfors, Nils Molin, Eugen Montelin
  • Patent number: 4332894
    Abstract: Water-soluble polysaccharide guar gum, guaran, is altered to convert its properties from those of producing a highly viscous stable dispersion to enable production of a sequence of products that may be separately produced through the selective removal of D-galactopyranosyl side units so as to produce different lengths of molecular segments containing no derivatizing .alpha.-D-galactopyranosyl groups. The structure therefore yields a high viscosity polysaccharide with the ability to form gels of various strengths ranging from very weak gels to strong gels by appropriate selection of the extent to which the .alpha.-D-galactopyranosyl groups are removed.
    Type: Grant
    Filed: August 15, 1980
    Date of Patent: June 1, 1982
    Assignee: Purdue Research Foundation
    Inventor: Roy L. Whistler
  • Patent number: 4330623
    Abstract: Gonococcal antigens are solubilized by a process involving trypsin-digestion.
    Type: Grant
    Filed: February 19, 1980
    Date of Patent: May 18, 1982
    Assignee: Merck & Co., Inc.
    Inventor: Yashwant D. Karkhanis
  • Patent number: 4327183
    Abstract: This invention provides a method for purifying crude fatty acid esters of saccharide containing at least fatty acid glycerides as impurity, and which method comprises decomposing the fatty acid glycerides by the treatment thereof with a lipid splitting enzyme or with a combination of a lipid splitting enzyme and a reducing agent in the presence of water.
    Type: Grant
    Filed: December 5, 1980
    Date of Patent: April 27, 1982
    Assignee: Mitsui Toatsu Chemicals, Inc.
    Inventors: Takayoshi Masuda, Masaru Honjo, Tsutomu Takase, Yoshimoto Watanabe
  • Patent number: 4326037
    Abstract: A method for enhancing the ability of polysaccharides in aqueous solution to flow through a porous medium comprises contacting the polysaccharides with an endoenzyme capable of hydrolyzing at least one of the linkages of the sugar units of the polysaccharides and maintaining the polysaccharides in contact with the enzyme under hydrolysis conditions for a time sufficient to decrease the tendency of the polysaccharides to plug the porous medium yet insufficient to decrease the viscosity of the aqueous polysaccharides by more than 25%. The partially hydrolyzed polysaccharides are useful as thickening agents for flooding water used to recover oil from oil-containing subterranean formations.
    Type: Grant
    Filed: November 1, 1979
    Date of Patent: April 20, 1982
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventors: William L. Griffith, Alicia L. Compere, James W. Holleman
  • Patent number: 4302475
    Abstract: A method of producing milo starch which comprises the steps of immersing refined milo in a weakly acidic solution of sodium chlorite to remove the tannin, grinding the same to provide a starch slurry, and removing the proteins from the latter. The method is capable of producing milo starch of high purity at low cost without causing odor pollution.A method of producing milo starch includes, besides the steps described above, the steps of lactic-fermenting the waste liquid resulting from the immersion of white grain milo, concentrating the liquid, mixing the concentrated liquid with the bran resulting from the refining of milo, and drying the mixture to provide milo feed. By this method, it is possible to produce milo starch without having to provide any special equipment for treating the waste water.
    Type: Grant
    Filed: June 19, 1980
    Date of Patent: November 24, 1981
    Assignee: Bohsei Enterprise, Ltd.
    Inventor: Motoichi Shigehiro
  • Patent number: 4234688
    Abstract: The solution viscosity of a polysaccharide, microbial alginate, produced by culturing strains of Azotobacter vinelandii, is controlled by addition of a protease to the culture broth. The protease can be added during the culture, to obtain a polysaccharide of increased viscosity. Alternatively or additionally protease can also be added after culture but before the polysaccharide is isolated from the broth, for example, to prevent reduction of viscosity during storage. Neutral and alkaline proteases having activity at around pH 7 are particularly suitable.
    Type: Grant
    Filed: March 10, 1978
    Date of Patent: November 18, 1980
    Assignee: Tate & Lyle Limited
    Inventors: Renton C. Righelato, Trevor R. Jarman
  • Patent number: 4233406
    Abstract: A process for the enzymatic streatment of waste water of wheat starch plants in which the waste water is subjected before or alternating with the first steps of the concentration process to a process at least consisting of(a) a heat treatment followed by separation of the solid substance, and(b) a treatment with enzyme preparations exhibiting amylase and/or cellulase and/or hemi-cellulase activity and optionally glucoamylase and/or .beta.-glucanase activity.
    Type: Grant
    Filed: October 13, 1978
    Date of Patent: November 11, 1980
    Assignees: Naarden International N.V., Altenburger Maschinen KG Jaeckering & Co.
    Inventors: Andras J. Wieg, Gunther Jackering
  • Patent number: 4192916
    Abstract: An improved process for producing defatted heparin tissue is disclosed wherein frozen heparin-bearing tissue is particulated, thawed and warmed in a heat exchanger, fermented at temperatures ranging from about 60.degree.-85.degree. F. for 5 to 12 hours and subjected to azeotropic distillation and extraction to substantially remove water and fat. Putrefaction and odor are avoided, the tissue has improved uniformity in biochemical content, is lower in fat content and is capable of high heparin yields when processed according to known procedures. The defatted tissue is exceptionally permeable to heparin recovery solutions and heparin isolation is facilitated.
    Type: Grant
    Filed: April 5, 1978
    Date of Patent: March 11, 1980
    Assignee: A. H. Robins Company, Incorporated
    Inventors: William E. Melby, Charles E. Isdale, Sr., Vernon K. Collins
  • Patent number: 4188467
    Abstract: An improved method of tempering frozen heparin-bearing animal tissue is disclosed wherein the frozen tissue is particulated, thawed and warmed in a heat exchanger and fermented at temperatures ranging from about 60.degree.-85.degree. F. for 5-12 hours. Putrefaction and odor are avoided; the tissue has improved uniformity in biochemical content and is capable of high heparin yields when processed according to known procedures. When the tempered tissue is defatted with an azeotropic solvent, more of the fat is removed and the defatted tissue is more permeable to heparin recovery solutions and heparin isolation is facilitated.
    Type: Grant
    Filed: April 5, 1978
    Date of Patent: February 12, 1980
    Assignee: A. H. Robins Company, Incorporated
    Inventors: William E. Melby, Charles E. Isdale, Sr., Vernon K. Collins