Fungal Source Patents (Class 435/203)
  • Patent number: 5662901
    Abstract: The invention comprises two grain conditioners. The first grain conditioner, which is suitable for use on all grains, comprises a pectinase, a protease, a beta-glucanase and an amylase. The second grain conditioner, which is designed for use on easier-to-digest grains, comprises a pectinase, a beta-glucanase, an amylase and a hemicellulase. The invention also comprises animal feeds which comprise a grain which has been conditioned with one of the grain conditioners of the invention designed to be effective on that grain and methods of increasing the weight gain and feed utilization efficiency of an animal comprising feeding the novel animal feeds of the invention to the animal. The invention further comprises a method of conditioning a grain which comprises providing the grain, contacting the grain with one of the grain conditioners of the invention designed to be effective on that grain and incubating the grain and grain conditioner together for at least about 30 minutes.
    Type: Grant
    Filed: August 22, 1994
    Date of Patent: September 2, 1997
    Assignees: Loveland Industries, Inc., George A. Jeffreys & Co., Creative Research Laboratories, Inc.
    Inventors: James F. Tobey, Jr., J. Stanley McGee, Charles W. Cobb, William Cortner
  • Patent number: 5652127
    Abstract: According to the invention a method is provided for liquefying starch comprising the steps of adding a sodium composition to the starch prior to or simultaneously with liquefying the starch; adding .alpha.-amylase to the treated starch; and reacting the treated starch for a time and at a temperature effective to liquefy the treated starch. Preferred sodium compositions comprise sodium chloride, sodium bicarbonate, sodium benzoate, sodium sulfate, sodium bisulfite, sodium ascorbate, sodium acetate, sodium nitrate, sodium tartrate, sodium tetraborate, sodium propionate, sodium citrate, sodium succinate, monosodium glutamate, trisodium citrate, sodium phosphate or a mixture thereof.
    Type: Grant
    Filed: June 2, 1995
    Date of Patent: July 29, 1997
    Assignee: Genencor International, Inc.
    Inventors: Colin Mitchinson, Leif P. Solheim
  • Patent number: 5635468
    Abstract: The present invention relates to a liquefying alkaline .alpha.-amylase having the enzymatic properties described below, a production process thereof and a detergent composition containing the same.1) Action:It hydrolyzes .alpha.-1,4-glucosidic linkages in starches, amylose, amylopectin and partial degradation products thereof and from amylose, forms glucose (G1), maltose (G2), maltotriose (G3), maltotetraose (G4), maltopentaose (G5) and maltohexaose (G6). It however does not act on pullulan.2) Isoelectric point:It has an isoelectric point higher than 8.5 when measured by an isoelectric focusing electrophoresis.The amylase according to the present invention has a liquefying activity capable of permitting degrading starches and starchy polysaccharides at high random, and has an optimum pH on the alkaline side. Owing to the high isoelectric point, it can be purified readily. Detergents with the amylase incorporated therein have excellent detergency especially against the soil of smeared food.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: June 3, 1997
    Assignee: Kao Corporation
    Inventors: Katsutoshi Ara, Katsuhisa Saeki, Kazuaki Igarashi, Mikio Takaiwa, Takaaki Uemura, Shuji Kawai, Susumu Ito, Hiroshi Hagihara, Tohru Kobayashi, Atsushi Tanaka, Eiichi Hoshino
  • Patent number: 5631149
    Abstract: There is disclosed a variant-type carbohydrate hydrolase that has been increased transglycosylation activity by substituting another amino acid residue for the tyrosine residue that is present in the active center of the hydrolase, which hydrolase is an amylase or an enzyme analogous to amylase; a gene or a DNA sequence of the carbohydrate hydrolase with mutation introduced into the base sequence that encodes the tyrosine residue; and a vector or a transformant which comprises the DNA sequence. There is also disclosed a method for producing a variety of oligosaccharides and the like by using the variant-type carbohydrate hydrolase.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: May 20, 1997
    Assignee: Director-General Of Agency of Industrial Science and Technology
    Inventors: Ikuo Matsui, Kazuhiko Ishikawa, Sachio Miyairi, Koichi Honda
  • Patent number: 5620873
    Abstract: A process for preparing a dextrin containing a dietary fiber characterized by dissolving a pyrodextrin in water and causing .alpha.-amylase to act on the solution.
    Type: Grant
    Filed: May 8, 1995
    Date of Patent: April 15, 1997
    Assignee: Matsutani Chemical Industries Co., Ltd.
    Inventors: Kazuhiro Ohkuma, Yoshio Hanno, Kazuyuki Inaba, Isao Matsuda, Yasuo Katsuda
  • Patent number: 5561051
    Abstract: The present invention is directed to a method for screening samples for the identification of agents exhibiting potential fungicidal and insecticidal activity for a wide variety of agricultural, medical and pharmaceutical uses. The method utilizes cells that comprise a plasmid-born CTS gene of Saccharomyces cerevisiae, which allows for over expression of chitinase.
    Type: Grant
    Filed: June 14, 1994
    Date of Patent: October 1, 1996
    Assignee: American Cyanamid Company
    Inventor: Sanford J. Silverman
  • Patent number: 5538882
    Abstract: There is disclosed a variant-type carbohydrate hydrolase that has been increased transglycosylation activity by substituting another amino acid residue for the tyrosine residue that is present in the active center of the hydrolase, which hydrolase is an amylase or an enzyme analogous to amylase; a gene or a DNA sequence of the carbohydrate hydrolase with mutation introduced into the base sequence that encodes the tyrosine residue; and a vector or a transformant which comprises the DNA sequence. There is also disclosed a method for producing a variety of oligosaccharides and the like by using the variant-type carbohydrate hydrolase.
    Type: Grant
    Filed: March 2, 1994
    Date of Patent: July 23, 1996
    Assignee: Director-General of Agency of Industrial Science and Techology
    Inventors: Ikuo Matsui, Kazuhiko Ishikawa, Sachio Miyairi, Koichi Honda
  • Patent number: 5536637
    Abstract: A novel method of screening for novel secreted mammalian proteins is described in which mammalian secretory leader sequences are detected using the yeast invertase gene as a reporter system.
    Type: Grant
    Filed: October 24, 1994
    Date of Patent: July 16, 1996
    Assignee: Genetics Institute, Inc.
    Inventor: Kenneth Jacobs
  • Patent number: 5474922
    Abstract: The present invention relates to .beta.-1,4-galactanase derived from A. aculeatus which have (a) a pH-optimum between 3.0 and 5.0, (b) an isoelectric point of 2.5-3.5, (c) a molecular weight of between 30,000 and 50,000, and (d) a temperature optimum between 10.degree. and 50.degree. C.
    Type: Grant
    Filed: July 15, 1993
    Date of Patent: December 12, 1995
    Assignee: Novo Nordisk A/S
    Inventors: Kurt Dorreich, Henrik Dalboge, Jan M. Mikkelsen, Marcel Mischler, Flemming M. Christensen
  • Patent number: 5322778
    Abstract: The present invention relates to a process of liquefying starch wherein the liquefaction step is carried out at pH less than 6. It also relates to the use of antioxidants.
    Type: Grant
    Filed: October 31, 1991
    Date of Patent: June 21, 1994
    Assignee: Genencor International, Inc.
    Inventors: Richard L. Antrim, Leif P. Solheim
  • Patent number: 5252726
    Abstract: A process for expression of a protein product in Aspergillus is disclosed. The process comprises transforming an Aspergillus strain with a vector system comprising DNA-sequences encoding a promoter including upstream activating sequences derived from an A. niger amylase, a suitable marker for selection of transformants, and a DNA-sequence encoding the desired protein product. The process enables industrial production of many different polypeptides and proteins in Aspergillus, preferably A. niger. Examples of such products are chymosin or prochymosin and other rennets, proteases, lipases and amylases. Also disclosed is an effective promoter for expression of a protein in Aspergillus, preferably Aspergillus niger being derived from a gene encoding an A. niger amylase. The A. niger amylases are the neutral and acid stable .alpha.-amylases and a new amylase not so far described and designated XA amylase. Also disclosed is the novel amylase from A. niger XA amylase.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: October 12, 1993
    Assignee: Novo Nordisk A/S
    Inventor: Helle F. Woldike
  • Patent number: 5202250
    Abstract: Cross-linked polyglucans obtained by cross-linking polyglucans having branched chains intermolecularly and/or intramolecularly or cross-linked homooligomers obtained by cross-linking .alpha.-1,4-linked homooligomers of glucose intermolecularly can selectively adsorb glucoamylase and/or .beta.-amylase thereto. By the use of such three-dimensional, cross-linked high molecular weight substances, glucoamylase and .beta.-amylase can be isolated and purified extremely efficiently.
    Type: Grant
    Filed: October 6, 1987
    Date of Patent: April 13, 1993
    Assignee: Hitachi, Ltd.
    Inventors: Masahiko Ishida, Ryoichi Haga, Yuusaku Nishimura, Masami Satoh
  • Patent number: 5068183
    Abstract: A for measurement of .alpha.-amylase activity uses a substrate comprising a malto-oligo saccharide represented by general formula (I) or (V) described below:A - Gn - B (I)A - Gn - I (V)wherein A represents: ##STR1## B represents a monosaccharide or a derivative thereof other than glucose; I represents inositol or a derivative thereof; G represents glucose; and n represents an integer of 3 to 15; in formula (II) or (III), R.sub.1 to R.sub.4 each represents a hydrogen atom, a lower alkyl group or (CH.sub.2)yCOOM (wherein y is 0, 1 or 2 and M represents a hydrogen atom or an alkali metal); and X.sub.1 to X.sub.4 each represents an oxygen atom or a sulfur atom. The method for measurement of .alpha.-amylase activity comprises contacting a substrate containing a malto-oligo saccharide represented by general formula (I) or (V) described above with a sample in the presence of glucosidase and measuring a liberated monosaccharide, inositol or a derivative thereof thereby to measure .alpha.
    Type: Grant
    Filed: January 3, 1991
    Date of Patent: November 26, 1991
    Assignees: Kurita Water Industries, Ltd., Zensuke Ogawa
    Inventor: Zensuke Ogawa
  • Patent number: 5043436
    Abstract: A substrate for measurement of .alpha.-amylase activity comprising a malto-oligo saccharide respresented by general formula (I) or (V) described below:A--Gn--B (I)A--Gn--I (V)wherein A represents: ##STR1## B represents a monosaccharide or a derivative thereof other than glucose; I represents inositol or a derivative thereof; G represents glucose; and n represents an integer of 3 to 15; in formula (II) or (III), R.sub.1 to R.sub.4 each represents a hydrogen atom, a lower alkyl group or (CH.sub.2)yCOOM (wherein y is 0, 1 or 2 and M represents a hydrogen atom or an alkali metal); and X.sub.1 to X.sub.4 each represents an oxygen atom or a sulfur atom.
    Type: Grant
    Filed: November 3, 1987
    Date of Patent: August 27, 1991
    Assignees: Kurita Water Ind., Ltd., Zensuke Ogawa
    Inventor: Zensuke Ogawa
  • Patent number: 5024941
    Abstract: A vector including a DNA sequence encoding a secretory signal sequence substantially identical to the secretory signal-encoding sequence of a glucoamylase gene from Saccharomyces diastaticus or S. cerevisiae; and upstream from the signal-encoding sequence, a DNA sequence capable of promoting transcription in yeast (e.g., a high yield promoter, such as the promoter of the triose phosphate isomerase gene), transcription of the signal-encoding sequence being under the control of the transcription-promoting sequence, a site for the insertion into the vector of a heterologous DNA sequence, in reading frame with the signal-encoding sequence. The vector is useful as an expression vector in yeast.
    Type: Grant
    Filed: December 18, 1985
    Date of Patent: June 18, 1991
    Assignee: BioTechnica International, Inc.
    Inventors: Gregory T. Maine, Robert S. Daves, Robert R. Yocum
  • Patent number: 5023176
    Abstract: The filterability of glucose syrups obtained from impure wheat or other cereal starch is improved by treatment with Disporotrichum. Also the separation of starch from other constituents of impure cereal starch is improved by addition of xylanase before the starch is separated.
    Type: Grant
    Filed: December 2, 1986
    Date of Patent: June 11, 1991
    Assignee: Gist-Brocades N.V.
    Inventor: Paul Ducroo
  • Patent number: 4985082
    Abstract: Amylase treated granular starches provide a microporous matrix material adapted for absorption and releasable containment of functional compositions. The microporous starch granules are chemically derivatized to enhance absorptive and structural properties. Absorbed functional substances are released from the microporous starch matrix under the influence of mechanical compression, by diffusion into a surrounding fluid or as a result of degradation of the granular starch matrix.
    Type: Grant
    Filed: November 20, 1987
    Date of Patent: January 15, 1991
    Assignee: Lafayette Applied Chemistry, Inc.
    Inventor: Roy L. Whistler
  • Patent number: 4902621
    Abstract: An aqueous stabilized enzyme preparation to be used for measuring the amount of .alpha.-amylase in a liquid sample like serum or urine containing a blocked and labeled oligosaccharide being the substrate for the .alpha.-amylase to be measured in the presence of exo-enzymes which aqueous preparation, preferably consisting of two separate solutions is stabilized by adding a buffer, a taurocholic acid derivative, an albumin, and a polyhydric alcohol.
    Type: Grant
    Filed: September 8, 1987
    Date of Patent: February 20, 1990
    Assignee: Akzo N.V.
    Inventor: Peter Witt
  • Patent number: 4870014
    Abstract: This inverntion concerns a glycoamylase gene cloned into the yeast Saccharomyces cerevisiae, method for cloning such a gene into such yeasts and cloning vehicles containing such a gene, suitable for use in Saccharomyces cerevisiae. Yeast containing a glucoamylase gene are of potential use in the brewing industry.
    Type: Grant
    Filed: September 16, 1985
    Date of Patent: September 26, 1989
    Assignee: Canadian Patents and Development Ltd.
    Inventors: Judy A. Eratt, Anwar Nasim
  • Patent number: 4797361
    Abstract: This invention includes a process for producing and using increased quantities of extracellular glycoprotein (particularly cellulolytic) enzymes by permitting the enzyme-producing microbial strain to undergo a preliminary growth phase, preferably at about 37.degree. C., and then an enzyme-secretion phase. Also included is a specific microbial strain, RL-P37 of Trichoderma reesei, which grows well at 37.degree. C. and the cellulasic products thereof.
    Type: Grant
    Filed: September 11, 1987
    Date of Patent: January 10, 1989
    Assignee: Lehigh University
    Inventor: Bland S. Montenecourt
  • Patent number: 4782143
    Abstract: Starch hydrolyzates having a dextrose equivalent value of not more than about 25 which contain up to about 20% glucose by weight and up to about 40% maltose by weight, with the combination of glucose and maltose not exceeding about 40% by weight of the composition.
    Type: Grant
    Filed: April 14, 1986
    Date of Patent: November 1, 1988
    Assignee: Grain Processing Corporation
    Inventors: Alpha L. Morehouse, Pamela A. Sander
  • Patent number: 4727026
    Abstract: A method for the cooking-free saccharification of starch using an amylase produced by Corticium rolfsii AHU 9627 or its variants. According to the method, even a high viscous suspension of 10% (w/v) or more raw-corn starch is almost completely hydrolyzed within 8 hours. The saccharification is proceeded at a higher temperature and a lower pH compared with those in known methods utilizing other amylases which are able to hydrolyze uncooked starch, so that the propagation of the infectious bacteria which would affect the saccharifying efficiency can be avoided.
    Type: Grant
    Filed: May 23, 1986
    Date of Patent: February 23, 1988
    Assignee: Godo Shusei Co., Ltd.
    Inventors: Masahiko Sawada, Kazuhiko Kurosawa, Hiroshi Sasaki, Shoichi Takao
  • Patent number: 4676986
    Abstract: The present invention relates to amylolytic enzymes produced by strains of Schwanniomyces castellii which enzymes are relatively thermolabile under the conditions used to pasteurize beer. The present invention is also concerned with a novel strain of Schwanniomyces castellii which is a derepressed producer of alpha-amylase. Also disclosed is an improved process for the production of low carbohydrate beers and in particular, low calorie beers, from high gravity worts which improvements are facilitated through the use of culture filtrates derived from viable cultures of Schwanniomyces castellii.
    Type: Grant
    Filed: May 20, 1986
    Date of Patent: June 30, 1987
    Inventors: Alexander M. Sills, Graham G. Stewart
  • Patent number: 4605619
    Abstract: Process for preparing fructose by treating starch with alpha-amylase, contacting the resulting liquefied starch with glucoamylase to hydrolyzed said starch to glucose, and isomerizing at least part of the resulting glucose to fructose by contacting said glucose with glucose isomerase. The three enzymes are obtained from organisms of the Basidiomycetes class of fungi.
    Type: Grant
    Filed: March 22, 1984
    Date of Patent: August 12, 1986
    Assignee: Nabisco Brands, Inc.
    Inventors: Robert O. Horwath, Robert M. Irbe
  • Patent number: 4593005
    Abstract: A novel strain Aspergillus K27 belonging to genus Aspergillus which has the same taxonomical characteristics as those of Aspergillus fumigatus except that(1) its conidiophore is colorless and(2) its growing temperature range is between 10.degree. and 55.degree. C., which produces amylolytic enzymes which can hydrolyze alpha-amylase resistant starch as well as usual starch.
    Type: Grant
    Filed: August 6, 1984
    Date of Patent: June 3, 1986
    Assignee: Daikin Industries, Ltd.
    Inventor: Susumu Hizukuri
  • Patent number: 4591560
    Abstract: A process for the saccharification of starch, which comprises saccharifying a raw and/or gelatinized starch by the use of an amylase produced by a fungus belonging to genus Chalara to produce glucose.According to the process of the present invention, the starch is directly saccharified, and glucose can be obtained efficiently.
    Type: Grant
    Filed: December 29, 1983
    Date of Patent: May 27, 1986
    Assignee: Director of National Food Research Institute Ministry of Agriculture, Forstry and Fisheries
    Inventors: Keiji Kainuma, Shoichi Kobayashi
  • Patent number: 4550077
    Abstract: A reagent suitable for .alpha.-amylase determinations. The reagent contains a modified, blocked amylaceous polysaccharide substrate, e.g., starch glyolate, an exating by amylose, a buffer and an enzymatic glucose measuring system. The glycolate substrate is selected such that the ratio of methylated glucose to glucose is between 1:4 to 1:16. The system permits an impid assay in a single vid within 7 minutes and can be automated.
    Type: Grant
    Filed: May 7, 1980
    Date of Patent: October 29, 1985
    Assignee: Electro-Nucleonics, Inc.
    Inventors: J. Eliot Woodbridge, George F. Bulbenko, J. John Marshall
  • Patent number: 4233405
    Abstract: This invention involves a process for the preparation of spray dried enzymes.
    Type: Grant
    Filed: October 10, 1979
    Date of Patent: November 11, 1980
    Assignee: Rohm and Haas Company
    Inventor: Clifford E. Neubeck