Patents by Inventor Ziya Gunata

Ziya Gunata 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).

  • Method for synthesizing 2-acetyl-1-pyrroline, stable ketal precursors thereof, and isotopically marked analogs
    Patent number: 8597706
    Abstract: The present invention relates to a method for synthetizing a compound of the following formula (I): wherein R is a methyl or ethyl group, n is 1 or 2, and X is a CH2 or CD2 group, from a compound of the following formula (II): wherein R and n are as defined above, and also relates to a method for assaying the compounds of the formula (I) using a corresponding deuterated derivative as an internal reference, as well as to the use of ketal derivatives of compounds of the formula (I) as a stable precursor, in particular in a flavoring composition.
    Type: Grant
    Filed: June 24, 2010
    Date of Patent: December 3, 2013
    Assignees: Centre National de la Recherche Scientifique (CNRS), Universite Montpellier 2 Sciences et Techniques
    Inventors: Alain Morere, Chantal Menut, Yusuf Ziya Gunata, Abdelhamid Agrebi
  • METHOD FOR SYNTHESISING 2-ACETYL-1-PYRROLINE AND THE STABLE PRECURSOR THEREOF, OPTIONALLY ISOTOPICALLY MARKED
    Publication number: 20120100274
    Abstract: The present invention relates to a method for synthetizing a compound of the following formula (I): wherein R is a methyl or ethyl group, n is 1 or 2, and X is a CH2 or CD2 group, from a compound of the following formula (II): wherein R and n are as defined above, and also relates to a method for assaying the compounds of the formula (I) using a corresponding deuterated derivative as an internal reference, as well as to the use of ketal derivatives of compounds of the formula (I) as a stable precursor, in particular in a flavoring composition.
    Type: Application
    Filed: June 24, 2010
    Publication date: April 26, 2012
    Inventors: Alain Morere, Chantal Menut, Yusuf Ziya Gunata, Abdelhamid Agrebi
  • Process for obtaining aroma components and aromas from their precursors of a glycosidic nature, and aroma components and aromas thereby obtained
    Patent number: 6106872
    Abstract: An enzymatic hydrolysis of a glycosidic substrate containing at least one of the said precursors is performed with at least one enzyme chosen in accordance with the structure of the said precursor, to liberate the corresponding monoglycosides by cleavage at a glycoside bond, and, in a second stage, an enzymatic hydrolysis of the product of the first stage is performed with at least one enzyme other than or identical to that/those of the first stage and designed to liberate the aroma components and aromas by cleavage of the aglycone-carbohydrate linkage bond. A vegetable material derived from a fruit such as grape or an aromatic or flowering plant, as well as their derivatives and by-products, is chosen as a glycosidic substrate. Terepenols such as geraniol, linalol, nerol and the like, terpene polyols and alcohols such as phenyl ethyl alcohol and benzyl alcohol, or the like, are obtained, in particular, as aroma components or aromas.
    Type: Grant
    Filed: May 14, 1993
    Date of Patent: August 22, 2000
    Assignees: Gist-brocades NV, Institute National de la Recherche Agronomique (INRA)
    Inventors: Ziya Gunata, Sylvaine Bitteur, Raymond Baumes, Jean-Marc Brillouet, Claude Tapiero, Claude Bayonove, Robert Cordonnier
  • .beta.-glucosidase from filamentous fungi, and uses thereof
    Patent number: 6087131
    Abstract: An acid-stable .beta.-glucosidase that may be prepared from filamentous fungi and has very low glucose inhibition sensitivity is disclosed. Said .beta.-glucosidase is particularly useful for preparing fruit juices and in enzymatic cellulose hydrolysis methods.
    Type: Grant
    Filed: January 6, 1998
    Date of Patent: July 11, 2000
    Assignee: Institut National de la Recherche Agronomique - I.N.R.A.
    Inventors: Yusuf Ziya Gunata, Marie-Jose Vallier, Raymond Baumes, Claude Bayonove
  • Process for obtaining aroma components and aromas from their precursors of a glycosidic nature, and aroma components and aromas thereby obtained
    Patent number: 5985618
    Abstract: A method is disclosed for obtaining aroma components and aromas from their glycosidic precursors containing a .beta.-apioside with the use of .beta.-apiosidase.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: November 16, 1999
    Assignees: Cist-brocades, N.V., Institute National de la Recherche Agronomique
    Inventors: Ziya Gunata, Sylvaine Bitteur, Raymond Baumes, Jean-Marc Brillouet, Claude Tapiero, Claude Bayonove, Robert Cordonnier
  • Process for obtaining aroma components and aromas from their precursors of a glycosidic nature, and aroma components and aromas thereby obtained
    Patent number: 5573926
    Abstract: A method is disclosed for obtaining aroma components and aromas from their glycosidic precursors containing a .beta.-apioside with the use of .beta.-apiosidase.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: November 12, 1996
    Assignees: Gist-brocades, N.V., Institute National de la Recherche Agronomique
    Inventors: Ziya Gunata, Sylvaine Bitteur, Raymond Baumes, Jean-Marc Brillouet, Claude Tapiero, Claude Bayonove, Robert Cordonnier