Firmenich Sa

Yvan Niclass

Christian Starkenmann

Sina Dorothea Escher

Anthony Clark

Myriam Troccaz

Lionel Saudan

Matthijs Van De Waal

Described herein is a precursor compound of formula (I) releasing 2-acetyl-1-pyrroline and a method to release 2-acetyl-1-pyrroline from the precursor compound of formula (I) in the form of any one of its stereoisomers, tautomers, salts or as a mixture thereof, where Rrepresents a hydrogen atom or a Cto Chydrocarbon group optionally including one to three heteroatoms; X represents an amino acid, a peptide or a ORwherein Rrepresents a hydrogen atom or a Cto Chydrocarbon group optionally including one to three heteroatoms and n is 0 when the dotted line represents a single bond or n is 1 when the dotted line represents no bond.

2-acetylpyrroline precursor

A method to confer, enhance, improve or modify the flavor properties of a flavoring composition or flavored article by adding to the composition or article the compound 3-mercaptoheptyl acetate or an optically active enantiomer thereof in an amount effective to provide a flavor base having top notes of the citrus-grapefruit, teas and/or peach type and/or red fruit. The compound is typically added to provide an amount of from 0.0001 to 500 ppm in the flavoring composition or flavored article. Also, the resultant flavored composition or flavored article.

Thiols as flavoring ingredient

The present invention relates to a method for screening compounds having the ability to prevent, suppress or reduce malodor development on body surfaces. In particular, the method allows to efficiently screen for compound having the ability of preventing sweat malodor development caused by volatile sulfur compounds (VSCs). The present invention is based on the finding of the direct precursor of naturally VSCs, which is present in human sweat and which will be metabolized by Staphylococci to VSCs.

Inhibition of sweat malodor

The present invention relates to a method for screening compounds having the ability to prevent, treat or reduce malodor development on body surfaces. In particular, the method allows to efficiently screen for compound having the ability of preventing sweat malodor development caused by volatile sulfur compounds (VSCs). The present invention is based on the finding of the direct precursor of naturally VSCs, which is present in human sweat and which will be metabolized byto VSCs.

The compounds of formulain the form of any one of their isomers or of mixtures thereof, and wherein R represents a hydrogen atom or an acetyl group, Rrepresents a methyl or an ethyl group and Rrepresents a C&#x2013;Clinear or branched alkyl group, are useful for the perfume and flavor industries.

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Perly, Switzerland

Yvan Niclass