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: 9777243
    Abstract: Methods for obtaining corn oil from milled corn germ (e.g., dry milled corn germ), involving adding water, at least one acidic cellulase, at least one acidic protease, and at least one phytase to milled corn germ to obtain corn oil.
    Type: Grant
    Filed: January 13, 2015
    Date of Patent: October 3, 2017
    Assignees: The United States of America, as Represented by the Secretary of Agriculture, DANISCO US INC.
    Inventors: Robert A. Moreau, David Johnston, Kevin B. Hicks, Jayarama K. Shetty
  • Publication number: 20170183691
    Abstract: A conversion process provides using different co-cultured cell lines to express different sets of enzymes catalyzing the same process. For example, in a Simultaneous Saccharification and Co-Fermentation (SSCF) process, a starch substrate is converted to alcohol by contacting the substrate with yeast and Aspergillus niger cells. Because A. niger expresses an endogenous glucoamylase and alpha-amylase, these enzymes do not need to be added during the SSCF process.
    Type: Application
    Filed: April 6, 2015
    Publication date: June 29, 2017
    Applicant: Danisco US Inc.
    Inventors: Kathleen A. Clarkson, Matthew T. Reboli, Jacquelyn A. Huitink, Paula Johanna Maria Teunissen, Gopal K. Chotani, Jayarama K. Shetty
  • Patent number: 9677058
    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: Grant
    Filed: December 20, 2012
    Date of Patent: June 13, 2017
    Assignee: DUPONT NUTRITION BIOSCIENCES APS
    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
  • Publication number: 20170143004
    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: July 25, 2016
    Publication date: May 25, 2017
    Applicant: Danisco US Inc.
    Inventors: Oliver Kensch, Klaus Schulze Pellengahr, Birgitta Leuthner, Jayarama K. Shetty, Michael Pepsin, Soren Dalsgaard, Mai Faurschou Isaksen
  • Publication number: 20160257977
    Abstract: The present invention relates to methods for improving fermentation processes, including increasing product yield, reduced viscosity, and/or reduced foaming.
    Type: Application
    Filed: October 21, 2014
    Publication date: September 8, 2016
    Applicant: Danisco US Inc.
    Inventors: Gang Duan, Jayarama K. Shetty, Xin Wang, Hongxian Xu, Xiaoping Zhang, Peng Zhou
  • Patent number: 9428780
    Abstract: The present invention relates to filamentous fungal host cells and particularly Trichoderma host cells useful for the production of heterologous granular starch hydrolyzing enzymes having glucoamylase activity (GSHE). Further the invention relates to a method for producing a glucose syrup comprising contacting a granular starch slurry obtained from a granular starch substrate simultaneously with an alpha amylase and a GSHE at a temperature equal to or below the gelatinization temperature of the granular starch to obtain a composition of a glucose syrup.
    Type: Grant
    Filed: April 16, 2015
    Date of Patent: August 30, 2016
    Assignee: Danisco US Inc.
    Inventors: Toby M. Baldwin, Benjamin S. Bower, Gopal K. Chotani, Nigel Dunn-Coleman, Oreste J. Lantero, Suzanne Lantz, Michael J. Pepsin, Jayarama K. Shetty, Bruce A. Strohm
  • Publication number: 20160201006
    Abstract: Methods for obtaining corn oil from milled corn germ (e.g., dry milled corn germ), involving adding water, at least one acidic cellulase, at least one acidic protease, and at least one phytase to milled corn germ to obtain corn oil.
    Type: Application
    Filed: January 13, 2015
    Publication date: July 14, 2016
    Inventors: Robert A. Moreau, David Johnston, Kevin B. Hicks, Jayarama K. Shetty
  • Publication number: 20160115509
    Abstract: Fungal glucoamylases from Aspergillus fumigatus—expressed in Trichoderma reesei host cells (AfGATR) are provided. Trichoderma reesei host cells express AfGATRs at higher, or at least comparable, levels to natively expressed AfGA Aspergillus fumigatus. AfGATRs, including AfGA1TR and AfGA2TR, exhibit high activity at elevated temperatures and at low pH, so AfGATRs can be used efficiently in a process of saccharification in the presence of alpha-amylase, such as Aspergillus kawachii alpha-amylase (AkAA). AfGATRs advantageously catalyze starch saccharification to an oligosaccharide composition significantly enriched in DP1 (i.e., glucose) compared to the products of saccharification catalyzed by Aspergillus niger glucoamylase (AnGA) or native AfGA expressed in Aspergillus fumigatus. AfGATRs such as AfGA1TR, AfGA2TR or a variant thereof can be used at a lower dosage than AnGA and natively expressed AfGAs to produce comparable levels of glucose.
    Type: Application
    Filed: November 21, 2013
    Publication date: April 28, 2016
    Inventors: Jing Ge, Ling Hua, Sung Ho Lee, Jalsen Li, Jayarama K. Shetty, Zhongmei Tang, Bo Zhang, Kun Zhong
  • Publication number: 20160108448
    Abstract: Fungal glucoamylases from Aspergillus fumigatus that are expressed in Trichoderma reesei host cells (AfGATR) are provided. AfGATRs, including AfGA1TR and AfGA2TR, exhibit high activity at elevated temperatures and at low pH, so AfGATRs can be used efficiently in a simultaneous liquefaction and saccharification process in the presence of alpha amylase, such as Aspergillus kawachii alpha-amylase (AkAA). This greatly reduces the combined run time of liquefaction and saccharification reaction, where the pH and temperature must be readjusted for optimal use of the alpha-amylase or glucoamylase.
    Type: Application
    Filed: November 21, 2013
    Publication date: April 21, 2016
    Inventors: Jing Ge, Ling Hua, Sung Ho Lee, Jayarama K. Shetty, Bruce A. Strohm, Zhongmei Tang, Donald E. Ward
  • Patent number: 9315831
    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: Grant
    Filed: March 13, 2013
    Date of Patent: April 19, 2016
    Assignees: DANISCO US INC., THE GOODYEAR TIRE & RUBBER COMPANY
    Inventors: Collette M. Blake, Gopal K. Chotani, Gang Duan, Douglas Ko, Floor Kooy, Sung Ho Lee, Michael J. Pepsin, Ying Qian, Matt Reboli, Vivek Sharma, Jayarama K. Shetty, Bruce A. Strohm, Pauline Johanna Maria Teunissen, Hongxian Xu
  • Publication number: 20150284756
    Abstract: The present invention relates to filamentous fungal host cells and particularly Trichoderma host cells useful for the production of heterologous granular starch hydrolyzing enzymes having glucoamylase activity (GSHE). Further the invention relates to a method for producing a glucose syrup comprising contacting a granular starch slurry obtained from a granular starch substrate simultaneously with an alpha amylase and a GSHE at a temperature equal to or below the gelatinization temperature of the granular starch to obtain a composition of a glucose syrup.
    Type: Application
    Filed: April 16, 2015
    Publication date: October 8, 2015
    Applicant: DANISCO US INC.
    Inventors: Toby M. Baldwin, Benjamin S. Bower, Gopal K. Chotani, Nigel Dunn-Coleman, Oreste J. Lantero, Suzanne Lantz, Michael J. Pepsin, Jayarama K. Shetty, Bruce A. Strohm
  • Publication number: 20150275255
    Abstract: The present disclosure relates to composition comprising EG cellulase and methods of use, thereof. The compositions are useful, e.g., for reducing the viscosity of plant material slurry.
    Type: Application
    Filed: June 5, 2015
    Publication date: October 1, 2015
    Applicant: DANISCO US INC.
    Inventors: Martien H. Bergsma, Gerhard Konieczny-Janda, Jayarama K. Shetty, Jan Hendrik van Tuijl, Paula Johanna Maria Teunissen
  • Publication number: 20150240279
    Abstract: A method is disclosed for hydrolyzing an alpha-1,3 or alpha-1,6 glucosyl-glucose linkage in a saccharide (disaccharide or oligosaccharide). This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,3 or alpha-1,6 glucosyl-glucose linkage of the saccharide. This method is useful for reducing the amount of oligosaccharides in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Application
    Filed: February 26, 2015
    Publication date: August 27, 2015
    Inventors: KEVIN D NAGY, Erwin Columbus Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Publication number: 20150240278
    Abstract: A method is disclosed for hydrolyzing an alpha-1,5 glucosyl-fructose linkage in a saccharide (disaccharide or oligosaccharide) such as leucrose. This method comprises contacting the saccharide with an alpha-glucosidase enzyme such as transglucosidase or glucoamylase under suitable conditions, during which contacting step the enzyme hydrolyzes at least one alpha-1,5 glucosyl-fructose linkage of the saccharide. This method is useful for reducing the amount of leucrose in a filtrate isolated from a glucan synthesis reaction, for example.
    Type: Application
    Filed: February 26, 2015
    Publication date: August 27, 2015
    Inventors: KEVIN D. NAGY, Erwin Columbus Hago, Jayarama K. Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Publication number: 20150152458
    Abstract: The present teachings provide a method for making a high glucose syrup at a low temperature. In some embodiments, the syrup contains reduced reversion reaction products. The method comprises contacting a starch substrate at a temperature below the starch gelatinization temperature with an enzyme blend comprising a high dose of alpha-amylase and a low dose of glucoamylase. In some embodiments, a blend of two glucoamylases is employed. In some embodiments, a debranching enzyme such as a pullulanase is employed. In some embodiments, the enzymes are staged by adding at different times, or at different temperatures. The present teachings provide for high glucose syrups with fewer reversion products, and allow for higher starch solubilization.
    Type: Application
    Filed: March 26, 2013
    Publication date: June 4, 2015
    Applicant: DANISCO US INC.
    Inventors: Bart Christian Koops, Floor K. Kooy, Sung Ho Lee, Jayarama K. Shetty, Bruce A. Strohm, Arjen Hendrik van Tuijl
  • Publication number: 20150152457
    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 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: June 4, 2015
    Applicant: Danisco US Inc.
    Inventors: Collette Michelle Blake, Gang Duan, Douglas Ko, Floor K. Kooy, Sung Ho Lee, Michael Jay Pepsin, Ying Qian, Matthew T. Reboli, Vivek Sharma, Jayarama K. Shetty, Bruce A. Strohm, Paula Johanna Maria Teunissen, Hongxian Xu
  • Publication number: 20150147786
    Abstract: A process for mechanical destructuring of starch-based biomass was developed that makes use of a short application of high compression, impact, and shearing forces. The biomass may be destructured using a specific energy input that is less than 40% of the total combustible energy of the biomass. The destructured starch-based biomass, with or without saccharification and/or in-feed glycosyl hydrolase enzymes, may be used in feed applications. The destructured starch-based may saccharified to produce syrups and fermentable sugars, and for production of products including ethanol using a biocatalyst.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 28, 2015
    Inventors: KATHLEEN A CLARKSON, F Glenn Gallagher, Aaron Perelman, Luis Fernando Romero Millan, Vivek Sharma, Jayarama K. Shetty, Daniel A. Slanac, Paula Johanna Maria Teunissen
  • Patent number: 9040279
    Abstract: The present disclosure relates to a Bacillus subtilis alpha-amylase (AmyE) or its variants thereof. AmyE or its variants thereof may be used to more efficiently produce fermentable sugars from starch. Also disclosed are a composition comprising a glucoamylase and AmyE or variant thereof and a method of processing starch utilizing the described enzyme composition.
    Type: Grant
    Filed: June 4, 2009
    Date of Patent: May 26, 2015
    Assignee: DANISCO US INC.
    Inventors: Suzanne Breneman, Sung Ho Lee, Vivek Sharma, Jayarama K. Shetty
  • Publication number: 20150140613
    Abstract: Described herein are compositions and methods for enhanced fermentation of molasses using transglucosidase.
    Type: Application
    Filed: October 8, 2014
    Publication date: May 21, 2015
    Applicant: Danisco US Inc.
    Inventors: Gang Duang, Zhenhua Ruan, Jayarama K. Shetty, Hongxian Xu
  • Publication number: 20150111259
    Abstract: The present teachings provide direct conversion of granular starch into a soluble sugar composition comprising a high, very high, and/or ultra high maltose content. The method involves contacting an aqueous slurry of granular starch with an enzyme composition comprising an appropriate ratio of an alpha-amylase and a maltogenic enzyme to produce a soluble starch substrate that is enzymatically converted to a sugar composition containing higher maltose. The process may use more than one temperature to achieve the same.
    Type: Application
    Filed: March 12, 2013
    Publication date: April 23, 2015
    Applicant: DANISCO US INC.
    Inventors: T. Kleinhout, Bart Christiaan Koops, Floor K. Kooy, Sung Ho Lee, Jayarama K. Shetty, Bruce A. Strohm