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).

  • Publication number: 20230131928
    Abstract: Described is a process for releasing soluble starch hydrolysates or hydrolysed starch syrup from substantially intact corn kernels during high temperature steeping at a temperature at or above the gelatinization temperature of starch in the corn kernels, and the recovery of protein and oil-enhanced, carbohydrate-depleted residuals that are ideally suited for use as high quality animal feed or other food-grade products.
    Type: Application
    Filed: March 26, 2021
    Publication date: April 27, 2023
    Inventors: ROBERT I CHRISTENSEN, JAYARAMA K SHETTY
  • Publication number: 20230002749
    Abstract: Described are polypeptides having glucoamylase activity, compositions comprising such polypeptides, and methods of using such polypeptides and compositions.
    Type: Application
    Filed: November 9, 2017
    Publication date: January 5, 2023
    Inventors: Jacob Flyvholm Cramer, Jing Ge, Marc Anton Bernhard Kolkman, Igor Nikolaev, Jayarama K. Shetty, Zhongmei Tang, Wilhelmus Antonius Van Der Kleij, Zhiyong Xie, Bo Zhang, Zhengzheng Zou
  • Publication number: 20220333141
    Abstract: The present invention relates to a dry grind ethanol process in which post-distillation backset is subjected to aerobic fermentation to remove components that are inhibitory to an ethanolagen, such as yeast, allowing the utilization of an increased amount of post-distillation backset during the initial preparation of starch-containing substrates for the dry grind ethanol process. Aerobic fermentation of the post-distillation backset allows substantially higher backset recycle, resulting in fresh water savings and increased sustainability.
    Type: Application
    Filed: September 9, 2020
    Publication date: October 20, 2022
    Inventors: Gopal K. CHOTANI, Jaclyn Diana DEMARTINI, Jacob Andrew LATONE, Vivek SHARMA, Jayarama K. SHETTY
  • Patent number: 11278041
    Abstract: Processes of treating grain (e.g., corn), involving milling the grain to produce milled grain wherein the grain germ remains intact in the milled grain, and producing a mixture by mixing the milled grain with water and at least one enzyme selected from the group consisting of protease, alpha amylase, glucoamylase, cell wall degrading enzyme, and mixtures thereof, wherein the pH of the mixture is optionally adjusted to a pH of about 3.5 to about 6.5, and incubating the mixture for about 1 to about 3 hours to produce an incubated mixture.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: March 22, 2022
    Assignees: The United States of America, as represented by the Secretary of Agriculture, DANISCO US INC.
    Inventors: David Johnston, Jayarama K. Shetty, Bart C. Koops
  • Publication number: 20210047664
    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: August 25, 2020
    Publication date: February 18, 2021
    Inventors: JING GE, Ling Hua, Sung Ho Lee, Jalsen Li, Jayarama K. Shetty, Zhongmei Tang, Bo Zhang, Kun Zhong
  • Patent number: 10767207
    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: Grant
    Filed: February 21, 2019
    Date of Patent: September 8, 2020
    Assignee: Danisco US INC
    Inventors: Jing Ge, Ling Hua, Sung Ho Lee, Jalsen Li, Jayarama K Shetty, Zhongmei Tang, Bo Zhang, Kun Zhong
  • Publication number: 20200163360
    Abstract: Processes of treating grain (e.g., corn), involving milling the grain to produce milled grain wherein the grain germ remains intact in the milled grain, and producing a mixture by mixing the milled grain with water and at least one enzyme selected from the group consisting of protease, alpha amylase, glucoamylase, cell wall degrading enzyme, and mixtures thereof, wherein the pH of the mixture is optionally adjusted to a pH of about 3.5 to about 6.5, and incubating the mixture for about 1 to about 3 hours to produce an incubated mixture.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: David Johnston, Jayarama K. Shetty, Bart C. Koops
  • Patent number: 10472657
    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: Grant
    Filed: May 24, 2018
    Date of Patent: November 12, 2019
    Assignee: DUPONT INDUSTRIAL BIOSCIENCES USA, LLC
    Inventors: Kevin D. Nagy, Erwin F. Columbus-Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Patent number: 10428362
    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: Grant
    Filed: May 10, 2018
    Date of Patent: October 1, 2019
    Assignee: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D. Nagy, Erwin F. Columbus-Hago, Jayarama K. Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Publication number: 20190177757
    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: February 21, 2019
    Publication date: June 13, 2019
    Inventors: Jing Ge, Ling Hua, Sung Ho Lee, Jalsen Li, Jayarama K Shetty, Zhongmei Tang, Bo Zhang, Kun Zhong
  • Publication number: 20190048376
    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: May 24, 2018
    Publication date: February 14, 2019
    Inventors: KEVIN D. NAGY, ERWIN F. COLUMBUS-HAGO, JAYARAMA K. SHETTY, SUSAN MARIE HENNESSEY, ROBERT DICOSIMO, LING HUA, RODRIGO RAMIREZ, ZHONGMEI TANG, ZHEYONG YU
  • Publication number: 20180273999
    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: May 10, 2018
    Publication date: September 27, 2018
    Inventors: KEVIN D NAGY, ERWIN F. COLUMBUS-HAGO, JAYARAMA K. SHETTY, SUSAN MARIE HENNESSEY, ROBERT DICOSIMO, LING HUA, RODRIGO RAMIREZ, ZHONGMEI TANG, ZHEYONG YU
  • Patent number: 9999238
    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: June 8, 2017
    Date of Patent: June 19, 2018
    Assignee: DANISCO US INC
    Inventors: Oliver Kensch, Klaus Schulze Pellengahr, Birgitta Leuthner, Jayarama K Shetty, Michael J. Pepsin, Soeren Dalsgaard, Mai Faurschou Isaksen
  • Patent number: 9988657
    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: Grant
    Filed: February 26, 2015
    Date of Patent: June 5, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: Kevin D Nagy, Erwin Columbus Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu
  • Patent number: 9982284
    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: Grant
    Filed: February 26, 2015
    Date of Patent: May 29, 2018
    Assignee: E I DU PONT DE NEMOURS AND COMPANY
    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: 20180125094
    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: June 8, 2017
    Publication date: May 10, 2018
    Inventors: OLIVER KENSCH, KLAUS SCHULZE PELLENGAHR, BIRGITTA LEUTHNER, JAYARAMA K SHETTY, Michael J. PEPSIN, SOEREN DALSGAARD, MAI FAURSCHOU ISAKSEN
  • Publication number: 20180112203
    Abstract: The present teachings provide an amylase with maltogenic properties. Nucleic acids encoding the maltogenic amylase and variants thereof, expression vectors, formulations, and host cells are also provided. Additional embodiments of the present teachings provide various methods of use and methods of manufacturing.
    Type: Application
    Filed: November 15, 2013
    Publication date: April 26, 2018
    Applicant: DANISCO US INC.
    Inventors: RICHARD R. BOTT, LING HUA, ZHEN QIAN, CHRISTOPHER L. RIFE, JAYARAMA K. SHETTY, ZHONGMEI TANG, ZHEYONG YU, BO ZHANG
  • Publication number: 20180030483
    Abstract: A process of enhanced bio-alcohol production from molasses is provided herein. The process comprises contacting molasses with sodium benzoate, potassium sorbate or a mixture thereof followed by yeast fermentation resulting in at least 6% increased alcohol production. Also included within the scope of the present invention is a process for producing co-product containing reduced glycerol.
    Type: Application
    Filed: March 1, 2016
    Publication date: February 1, 2018
    Applicant: DANISCO US INC.
    Inventors: Gang DUAN, Vipul GOHEL, Jayarama K. SHETTY
  • Publication number: 20170332663
    Abstract: Processes of treating grain (e.g., corn), involving milling the grain to produce milled grain wherein the grain germ remains intact in the milled grain, and producing a mixture by mixing the milled grain with water and at least one enzyme selected from the group consisting of protease, alpha amylase, glucoamylase, cell wall degrading enzyme, and mixtures thereof, wherein the pH of the mixture is optionally adjusted to a pH of about 3.5 to about 6.5, and incubating the mixture for about 1 to about 3 hours to produce an incubated mixture.
    Type: Application
    Filed: March 27, 2017
    Publication date: November 23, 2017
    Inventors: David Johnston, Jayarama K. Shetty, Bart C. Koops
  • Publication number: 20170314050
    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: November 2, 2017
    Inventors: KEVIN D NAGY, Erwin Columbus Hago, Jayarama K Shetty, Susan Marie Hennessey, Robert Dicosimo, Ling Hua, Rodrigo Ramirez, Zhongmei Tang, Zheyong Yu