Patents by Inventor An Amanda Jules Heylen

An Amanda Jules Heylen 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).

  • Separation of rebaudioside A from stevia glycosides using chromatography
    Patent number: 9005444
    Abstract: Disclosed are methods for the chromatographic separation of rebaudioside A from stevioside in glycoside solutions that are derived from stevia. The chromatographic separation may be an adsorb/desorb type of chromatographic separation or a fractionation type of chromatographic separation.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: April 14, 2015
    Assignee: Cargill, Incorporated
    Inventors: Chen-Chou Chiang, Jeffrey C. Evans, John Joseph Hahn, An Amanda Jules Heylen, Andrew Keith Ohmes, Alexander Patist, Troy Allen Rhonemus, Jenna Stangler, Christopher Austin Tyler, Ronny Leontina Marcel Vercauteren
  • CONFECTIONERY PRODUCTS CONTAINING ERYTHRITOL
    Publication number: 20120328756
    Abstract: The present invention relates to a confectionery product, more specifically a hard candy containing an edible acid, and at least 95% w/w erythritol preferably at least 98% w/w erythritol, more preferably at least 99% w/w erythritol. The confectionery product is not containing a binding agent selected from the group consisting of gum Arabic, gelatine and mixtures thereof.
    Type: Application
    Filed: February 24, 2011
    Publication date: December 27, 2012
    Applicant: Cargill, Inc.
    Inventors: An Amanda Jules Heylen, Ronny Leontina Marcel Vercauteren
  • SEPARATION OF REBAUDIOSIDE A FROM STEVIA GLYCOSIDES USING CHROMATOGRAPHY
    Publication number: 20110087011
    Abstract: Disclosed are methods for the chromatographic separation of rebaudioside A from stevioside in glycoside solutions that are derived from stevia. The chromatographic separation may be an adsorb/desorb type of chromatographic separation or a fractionation type of chromatographic separation.
    Type: Application
    Filed: May 13, 2009
    Publication date: April 14, 2011
    Applicant: CARGILL, INCORPORATED
    Inventors: Chen-Chou Chiang, Jeffrey C. Evans, John Joseph Hahn, An Amanda Jules Heylen, Andrew Keith Ohmes, Alexander Patist, Troy Allen Rhonemus, Jenna Stangler, Christopher Austin Tyler, Ronny Leontina Marcel Vercauteren
  • Oxidation of carbohydrates by means of peroxidases and nitroxy radicals
    Patent number: 7517675
    Abstract: A method of oxidising carbohydrates and/or carbohydrate derivatives having primary alcohol groups comprising contacting a reaction medium containing said carbohydrates and/or carbohydrate derivatives with a nitroxy radical mediator and a peroxidase enzyme, characterized in that the initial reaction medium contains at least 10% by weight carbohydrates and/or carbohydrate derivatives, in that the peroxidase enzyme is an oilseed peroxidase and in that a hydroperoxide and an alkali compound are gradually added to the reaction medium such that its pH is maintained at between 3.5 and 10.0 (pH-Stat); use of said method in a process for producing gluconic acid, glucaric acid and/or D-glucuronolactone.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: April 14, 2009
    Assignee: Cerestar Holding B.V.
    Inventors: Ronny Leontina Marcel Vercauteren, An Amanda Jules Heylen
  • Purified acid-stable alpha-amylase from fungal origin
    Patent number: 5962276
    Abstract: The present invention describes a simple and inexpensive purification method for acid-stable fungal alpha-amylase wherein the alpha-amylase is obtained without significant loss of enzyme activity. The purified acid-stable alpha-amylase which is obtained is substantially free from glucoamylase. The method for obtaining an acid-stable alpha-amylase comprises the steps ofadjusting the pH of the enzyme containing solution to a value between 1 and 8,heating the solution to a temperature and for a time sufficient to inactivate glucoamylase,removing the denatured glucoamylase.The purified acid-stable alpha-amylase is used for the conversion of starch. The purified alpha-amylase is also used in an immobilized form.
    Type: Grant
    Filed: February 17, 1998
    Date of Patent: October 5, 1999
    Assignee: Cerestar Hold B.V.
    Inventors: Ronny Vercauteren, Els Ginelle Alexander Dendooven, An Amanda Jules Heylen