V.mane Fils

Other

V. Mane Fils S.a.

Joseph Zucca

Jean M Mane

Fanny Lambert

Frédérique Ness

Michel Aigle

Frédéreque Ness

The present invention relates to a process for producing 9-decen-2-one, characterized by the bioconversion of undecylenic acid using a mold, and to its use in perfumery, cosmetics and food flavoring.

Method for producing natural 9-decen-2-one by bioconverting undecylenic acid using a mold, and use in the perfume and food flavoring fields

Yeast comprising at least one gene encoding vanillyl alcohol oxidase, the sequence of which is the sequence SEQ ID No. 1 or any sequence at least 70%, preferably 80%, very preferably 90% homologous to the sequence SEQ ID No. 1, and methods for producing coniferyl alcohol, ferulic acid and vanillin.

System for producing aromatic molecules by bioconversion

A process for the production of natural ferulic acid, coniferyl alcohol and/or vanillin, includes the bio-conversion of eugenol by a bacteria belonging to thegenes including at least one nucleotide sequence SEQ ID NO:1 or SEQ ID NO:8 or any nucleotide sequence having at least 70%, preferably 80% and very preferably 90%, identity with the sequence SEQ ID NO:1 or SEQ ID NO:8.

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The invention relates to a gamma-undecenolactone of formula (i), wherein a lactonic cycle can carry an unsaturation between carbon No. 2 and carbon No. 3 and is preferably saturated, RI is a possibly substituted Calkenyl or alkynyl group having at least one unsaturation, and preferably RI is an CH&#x2550;CH&#x2014;CH&#x2014;CH&#x2014;CH&#x2014;CH&#x2014;CHgroup, the gamma-undecenolactone contains an asymetric carbon in position 4 having (R) or (S) configuration. The biosynthesis of the gamma-undecenolactone and the use thereon for perfumery and for a food flavoring agent are also disclosed.

Gamma-undecenolactone, method for the preparation and use thereof for cosmetics and in the form of food additives

Method for stereoselectively preparing a (R) or (S) gamma-lactone consists in microbially biosynthesizing gamma-lactone, wherein the biosynthesis is carried out from a substrate selected from C5 to C20 fatty acids with the aid of a strain selected from those enabling a stereoselective hydroxylation in C4 of the substrate, in particularsp orsp. The biosynthesis of the gamma-lactone and the use thereof in perfumery and for food flavouring agents are also disclosed.

Stereoselective preparation of gamma-lactones

Biochemical process for preparing aromatic substances

A method for preparing aromatic substances having formula (I), wherein a substrate of formula (II) or an isomer of these precursors, also termed a substrate, in particular selected from those of formula (III), in which formulae R.sub.1 may be a --CH3, --CH2OH, --CHO, --COOH, or (a) radical, R.sub.2 may be a --H, --OH or --O--CH3 radical R.sub.3 may be a --H, --OH or --O--CH3 radical, and R.sub.2 and R.sub.3 may form a methylenedioxy bridge (b), is exposed to the activity of a lipoxygenase. ##STR1##

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Grasse, France

Joseph Zucca