Patents by Inventor Gour S. Choudhury

Gour S. Choudhury 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: 20100151094
    Abstract: Methods, apparatuses, and systems for removing the peels/skins from agricultural produce, such as fruits and vegetables, are disclosed. The peel and/or the connection between the peel and the flesh of the produce can be at least partially destroyed by a caustic fluid and/or steam. Once the peel has been sufficiently loosened from the flesh, forced air may be applied to the surface of the produce to remove the loosened peel and any residual caustic fluid. Using air to remove the loosened peel instead of the conventional use of water significantly reduces the freshwater requirements and substantially reduces the quantity of wastewater discharge with very low concentration of contaminants. The peels, caustic fluid, and water can be collected and separated, after which the peels can be neutralized and fed to livestock, used as fertilizer, or used for pectin production, and the caustic fluid and residual water can recycled into the system.
    Type: Application
    Filed: December 15, 2009
    Publication date: June 17, 2010
    Inventors: Gour S. Choudhury, Bill R. Hachtmann
  • Patent number: 5676986
    Abstract: The present invention relates to a method for proteolytic degradation of fish muscle having protease enzyme which includes distributing the enzyme uniformly throughout the fish muscle and drying the fish muscle thereafter. The present invention also relates to a method of making a food product and includes reducing hydrolyzed fish muscle to a powdered form, and then mixing the fish muscle in powder form with a starchy and/or proteinaceous material to form a mixture which is subsequently subjected to high temperature extrusion processing to form a desired food product. The present invention further relates to processes for tenderizing or causing substantial or complete proteolytic degradation of animal muscle by applying onto the animal muscle, protease enzyme obtained from fish having the enzyme present therein. Also disclosed is the resulting food products resulting from these processes.
    Type: Grant
    Filed: December 21, 1995
    Date of Patent: October 14, 1997
    Assignee: University of Alaska
    Inventor: Gour S. Choudhury
  • Patent number: 5572123
    Abstract: Inclusions such as encysted parasites and spoilage in food products such as fish fillets are detected by immersing the food products in a bath of an electrolyte, such as a saline solution, having substantially the same electrical conductivity as the uncontaminated food product. An electrical current passed through the electrolyte also passes through the food product. Perturbations in the resulting magnetic field produced by the discontinuities in conductivity at the boundaries of the inclusions or of the spoiled article which have substantially different conductivities from that of the electrolyte and unspoiled food products, provide an indication of the presence of the contamination. Production line inspection rates are achieved by conveying the food products through a container filled with electrolyte and past an array of stationary magnetometers.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: November 5, 1996
    Assignees: University of Alaska, Vanderbilt University
    Inventors: John P. Wikswo, Jr., Yu P. Ma, William G. Jenks, Christopher G. Bublitz, Gour S. Choudhury
  • Patent number: 5549920
    Abstract: A method is disclosed which inactivates protease enzyme in fish, such as arrowtooth flounder, having this enzyme in a portion thereof. In the process, the fish are minced and then subsequently mixed with a starchy and/or proteinaceous material to form a mixture which is then subjected to high-temperature, short-time processing in a screw extruder containing a reaction zone. Also disclosed is the resulting food product resulting from this process.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: August 27, 1996
    Assignee: University of Alaska
    Inventor: Gour S. Choudhury
  • Patent number: 5518741
    Abstract: A method for proteolytic degradation of fish muscle having protease enzyme which includes distributing the enzyme uniformly throughout the fish muscle and drying the fish muscle thereafter. The present invention also relates to a method of making a food product and includes reducing hydrolyzed fish muscle to a powdered form, and then mixing the fish muscle in powder form with a starchy and/or proteinaceous material to form a mixture which is subsequently subjected to high temperature extrusion processing to form a desired food product.
    Type: Grant
    Filed: December 22, 1994
    Date of Patent: May 21, 1996
    Assignee: University of Alaska
    Inventor: Gour S. Choudhury
  • Patent number: 5289123
    Abstract: A method for examining an edible product, such as fresh fish flesh, for dielectric inclusions, such as encysted parasites. The product is subjected to a current flow, which may be perturbed or deviated by any hidden inclusions. An electromagnetic effect of perturbed current flow is detected. In a preferred implementation, one or more scans of the external magnetic consequences of the effect of an inclusion allows the discovery and removal of the inclusion.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: February 22, 1994
    Assignee: University of Alaska
    Inventors: Christopher G. Bublitz, Gour S. Choudhury