Patents by Inventor Jayarama K. Shetty

Jayarama K. Shetty has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 8980598
    Abstract: A dry solids staging fermentation process for producing an end-product, such as ethanol is disclosed said process including an initial fermentation step including combining a first fermentable substrate with one or more starch hydrolyzing enzymes and fermenting organisms in a fermentation vessel and a loading step which includes adding a second fermentable substrate to the fermentation vessel wherein the percent dry solids (% DS) of the fermentation broth increases over time.
    Type: Grant
    Filed: June 14, 2005
    Date of Patent: March 17, 2015
    Assignee: Danisco US Inc.
    Inventors: Gopal Chotani, Gang Duan, Craig E. Pilgrim, Jayarama K. Shetty
  • Patent number: 8951764
    Abstract: Embodiments of the present disclosure relate to a process for producing isoprenoid precursor molecules and/or isoprenoids from a starch substrate by saccharification and/or fermentation. The saccharification is effectively catalyzed by a glucoamylase at a pH in the range of 5.0 to 8.0. At a pH of 6.0 or above, the glucoamylase possesses at least 50% activity relative to its maximum activity. The saccharification and fermentation may be performed as a simultaneous saccharification and fermentation (SSF) process.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: February 10, 2015
    Assignee: Danisco US Inc.
    Inventors: Martien H. Bergsma, Anthony R. Calabria, Gopal K. Chotani, William A. Cuevas, Gang Duan, Sung Ho Lee, Ying Qian, Vivek Sharma, Jayarama K. Shetty, Bruce A. Strohm, Paula Johanna Maria Teunissen, Hongxian Xu
  • Publication number: 20150037844
    Abstract: The present teachings provide methods of processing granular starch in slurries containing high dry solids content. The slurries are initially incubated with enzymes at or below the gelatinization temperature. The use of pullulanase and glucoamylase at specified doses allows for improved glucose yields at lower energy cost.
    Type: Application
    Filed: September 7, 2012
    Publication date: February 5, 2015
    Inventors: Sung Ho Lee, Jayarama K. Shetty, Bruce A. Strohm
  • Publication number: 20150010970
    Abstract: The present invention provides means for the production of desired end-products of in vitro and/or in vivo bioconversion of biomass-based feed stock substrates, including but not limited to such materials as starch and cellulose. In particularly preferred embodiments, the methods of the present invention do not require gelatinization and/or liquefaction of the substrate.
    Type: Application
    Filed: July 11, 2014
    Publication date: January 8, 2015
    Applicant: Danisco US Inc.
    Inventors: Gopal K. CHOTANI, Manoj KUMAR, Jeff P. PUCCI, Karl J. SANFORD, Jayarama K. SHETTY
  • Patent number: 8916369
    Abstract: A maltogenic a-amylase from Trichoderma reesei (TrAA) and variants thereof are useful in the production of high-maltose syrups from liquefied starch. Particularly high maltose concentrations are achieved when TrAA is used in the presence of a pullulanase. Expression hosts and encoding nucleic acids useful for producing TrAA and its variants also are provided.
    Type: Grant
    Filed: March 12, 2008
    Date of Patent: December 23, 2014
    Assignee: Danisco US Inc.
    Inventors: Gang Duan, Kathy Qian, Martijn Scheffers, Jayarama K. Shetty, Pieter Van Solingen
  • Publication number: 20140356922
    Abstract: The present invention relates to polypeptides having glucoamylase activity with improved properties and to compositions comprising these polypeptides suitable for use in the production of a food, beverage (e.g. beer), feed, or biofuel. Also described is an improved and cost-effective process for isolating glucoamylases suitable for large scale protein purification procedures. Furthermore, different methods and uses related to glucoamylases according to the invention are disclosed, such as in a brewing process.
    Type: Application
    Filed: December 20, 2012
    Publication date: December 4, 2014
    Inventors: Jacob Flyvholm Cramer, Neville Marshall Fish, Peter Edvard Degn, Igor Nikolaev, Paulien Kruithof, Piet Van Solingen, Sander Van Stigt Thans, Suzy Breneman, Jayarama K. Shetty, Sung Ho Lee
  • Patent number: 8883457
    Abstract: Described are compositions and methods relating to starch processing without a phytase pretreatment step and without adjustment of the slurry pH adjustment.
    Type: Grant
    Filed: January 9, 2013
    Date of Patent: November 11, 2014
    Assignee: Danisco US Inc.
    Inventors: Suzanne Breneman, Thomas S. Green, Michael Jay Pepsin, Vivek Sharma, Jayarama K. Shetty
  • Publication number: 20140273134
    Abstract: The barley-based biorefinery process comprises a method of optimizing the production of ethanol and value-added products from barley feedstock. Specifically, the biorefinery process is an integrated barley treatment process that utilizes essentially all components of barley (including the barley hulls) to efficiently produce ethanol and other value-added liquids and solids.
    Type: Application
    Filed: March 11, 2014
    Publication date: September 18, 2014
    Applicants: DANISCO US INC., The United States of America as represented by the Secretary of Agriculture
    Inventors: Nhuan P. Nghiem, Kevin B. Hicks, David B. Johnston, Justin M. Montanti, Jayarama K. Shetty
  • Publication number: 20140273145
    Abstract: Embodiments of the present disclosure relate to a process for producing isoprene from a starch substrate by saccharification and/or fermentation. The saccharification is effectively catalyzed by a glucoamylase at a pH in the range of 5.0 to 8.0. At a pH of 6.0 or above, the glucoamylase possesses at least 50% activity relative to its maximum activity. The saccharification and fermentation may be performed as a simultaneous saccharification and fermentation (SSF) process.
    Type: Application
    Filed: March 18, 2014
    Publication date: September 18, 2014
    Applicants: THE GOODYEAR TIRE & RUBBER COMPANY, Danisco US Inc.
    Inventors: Martien H. BERGSMA, Anthony R. CALABRIA, Gopal K. CHOTANI, William A. CUEVAS, Gang DUAN, Sung Ho LEE, Ying QIAN, Vivek SHARMA, Jayarama K. SHETTY, Bruce A. STROHM, Paula Johanna Maria TEUNISSEN, Hongxian XU
  • Patent number: 8815560
    Abstract: The present disclosure relates to an enzyme blend comprising a low pH, thermostable alpha-amylase and a Bacillus licheniformis alpha-amylase. The blend can include at least about 1.0 Liquefon Unit (LU) of the B. licheniformis alpha-amylase for every 5.0 Modified Wohlgemuth Unit (MWU) of the low pH, thermostable alpha-amylase. The enzyme blend described is suitable for starch liquefaction and saccharification, ethanol production, and/or sweetener production, among other things. Also provided herein is a method of processing a starch by liquefying the starch with the low pH, thermostable alpha-amylase and the Bacillus licheniformis alpha-amylase, simultaneously or sequentially.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: August 26, 2014
    Assignee: Danisco US Inc.
    Inventors: Glenn E. Nedwin, Vivek Sharma, Jayarama K. Shetty
  • Publication number: 20140234490
    Abstract: Provided herein are variants of Buttiauxella sp. phytases that may be used in industrial applications including methods for starch liquefaction, alcohol fermentations and for enhancing phosphate digestion in foods and animal feeds.
    Type: Application
    Filed: January 22, 2014
    Publication date: August 21, 2014
    Applicant: Danisco US Inc.
    Inventors: Oliver Kensch, Klaus Schulze Pellengahr, Birgitta Leuthner, Jayarama K. Shetty, Michael Pepsin, Soren Dalsgaard, Mai Faurschou Isaksen
  • Patent number: 8785165
    Abstract: Embodiments of the present disclosure relate to a process for producing downstream products, such as high-density glucose syrups and high-glucose fermentation feedstock, from a starch-containing substrate without a pH adjustment before the saccharification step. The saccharification is effectively catalyzed by a glucoamylase at a pH in the range of 5.2 to 5.6.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: July 22, 2014
    Assignee: Danisco US Inc.
    Inventors: Sung Ho Lee, Jayarama K. Shetty, Paula Johanna Maria Teunissen
  • Patent number: 8765439
    Abstract: A maltogenic ?-amylase from Trichoderma reesei (TrAA) and variants thereof in the presence of a glucoamylase are useful in the production of high-glucose syrups from liquefied starch, where the high-glucose syrups produced thereby contain at least about 97% glucose. In this process, TrAA advantageously suppresses the reversion of glucose to malto-oligosaccharides. Expression hosts and encoding nucleic acids useful for producing TrAA and its variants also are provided.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: July 1, 2014
    Assignee: Danisco US Inc.
    Inventors: Gang Duan, Kathy Qian, Martijn Scheffers, Jayarama K. Shetty, Pieter Van Solingen
  • Publication number: 20140178945
    Abstract: The present invention concerns a method of producing glucose from a granular starch substrate comprising, contacting a slurry comprising granular starch obtained from plant material with an alpha-amylase at a temperature below the starch gelatinization temperature of the granular starch to produce oligosaccharides and hydrolyzing the oligosaccharides to produce a mash comprising at least 20% glucose and further comprising fermenting the mash to obtain ethanol.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 26, 2014
    Applicant: Danisco US Inc.
    Inventors: Oreste J. LANTERO, Mian LI, Jayarama K. SHETTY
  • Patent number: 8715755
    Abstract: Methods for the production of substrate, tuber, and grain compositions containing isomalto-oligosaccharides are described. The methods comprise (a) contacting a substrate, tuber or grain containing ungelatinized starch with a maltogenic enzyme and a starch liquefying enzyme to produce maltose; (b) contacting the maltose with a transglucosidic enzyme, wherein the steps (a) and (b) occur at a temperature less than or at a starch gelatinization temperature; and (c) obtaining a substrate, grain or tuber composition having an enzymatically produced isomalto-oligosaccharide, wherein the oligosaccharide is derived from the grain. The maltogenic enzyme can be either exogenous or endogenous to the grain. The contacting steps can be sequential or concurrent. The present invention also describes flour, oral rehydrating solutions, beer adjuncts, food, feed, beverage additives incorporating the grain compositions made as described.
    Type: Grant
    Filed: June 29, 2011
    Date of Patent: May 6, 2014
    Assignee: Danisco US Inc.
    Inventors: Gang Duan, Feng Li, Jayarama K. Shetty, Sridevi Vadakoot
  • Publication number: 20140087430
    Abstract: Embodiments of the present disclosure relate to a process for producing downstream products, such as high-density glucose syrups and high-glucose fermentation feedstock, from a starch-containing substrate without a pH adjustment before the saccharification step. The saccharification is effectively catalyzed by a glucoamylase at a pH in the range of 5.2 to 5.6.
    Type: Application
    Filed: April 27, 2012
    Publication date: March 27, 2014
    Applicant: DANISCO US INC.
    Inventors: Sung Ho Lee, Jayarama K. Shetty, Paula Johanna Maria Teunissen
  • Publication number: 20140087429
    Abstract: The present disclosure relates to an enzyme blend comprising a low pH, thermostable alpha-amylase and a Bacillus licheniformis alpha-amylase. The blend can include at least about 1.0 Liquefon Unit (LU) of the B. licheniformis alpha-amylase for every 5.0 Modified Wohlgemuth Unit (MWU) of the low pH, thermostable alpha-amylase. The enzyme blend described is suitable for starch liquefaction and saccharification, ethanol production, and/or sweetener production, among other things. Also provided herein is a method of processing a starch by liquefying the starch with the low pH, thermostable alpha-amylase and the Bacillus licheniformis alpha-amylase, simultaneously or sequentially.
    Type: Application
    Filed: August 29, 2013
    Publication date: March 27, 2014
    Applicant: Danisco US Inc.
    Inventors: Glenn E. Nedwin, Vivek Sharma, Jayarama K. Shetty
  • Patent number: 8673609
    Abstract: Provided herein are variants of Buttiauxella sp. phytases that may be used in industrial applications including methods for starch liquefaction, alcohol fermentations and for enhancing phosphate digestion in foods and animal feeds.
    Type: Grant
    Filed: April 17, 2009
    Date of Patent: March 18, 2014
    Assignee: Danisco US Inc.
    Inventors: Oliver Kensch, Klaus Schulze Pellengahr, Birgitta Leuthner, Jayarama K. Shetty, Michael Pepsin, Søren Dalsgaard, Mai Faurschou Isaksen
  • Publication number: 20130280774
    Abstract: Provided herein are compositions and methods related to the direct conversion of the starch in a ground or fractionated grain into a fermentable sugar feedstock capable of serving as a carbon source for the industrial production of one or more products by a fermenting organism, such as isoprene, isoprenoid precursor molecules, and/or isoprenoids. Such conversions may be performed at temperatures at or below the initial gelatinization temperature of the starch present in the grain and may utilize one or more isolatable endogenous enzymes present in certain unrefined grains.
    Type: Application
    Filed: March 13, 2013
    Publication date: October 24, 2013
    Inventors: Collette M. BLAKE, Gopal K. CHOTANI, Gang DUAN, Douglas KO, Floor KOOY, Sung Ho LEE, Mike J. PEPSIN, Kathy QIAN, Matt REBOLI, Vivek SHARMA, Jayarama K. SHETTY, Bruce A. STROHM, Paula Johanna Maria TEUNISSEN, Sophia XU
  • Patent number: 8545907
    Abstract: The present disclosure relates to an enzyme blend comprising a low pH, thermostable alpha-amylase and a Bacillus licheniformis alpha-amylase. The blend can include at least about 1.0 Liquefon Unit (LU) of the B. licheniformis alpha-amylase for every 5.0 Modified Wohlgemuth Unit (MWU) of the low pH, thermostable alpha-amylase. The enzyme blend described is suitable for starch liquefaction and saccharification, ethanol production, and/or sweetener production, among other things. Also provided herein is a method of processing a starch by liquefying the starch with the low pH, thermostable alpha-amylase and the Bacillus licheniformis alpha-amylase, simultaneously or sequentially.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: October 1, 2013
    Assignee: Danisco US Inc.
    Inventors: Glenn E. Nedwin, Vivek Sharma, Jayarama K. Shetty