title: Identification and analysis of piperitone in red wines.
abstract: The present study concerns the search for new aroma compounds associated with the flavor of aged and prematurely aged red wines. Sensory descriptive analysis associated with gas chromatography-olfactometry was first performed to find specific odoriferous zones. One of the zones, reminiscent of mint, was found in red wines with a prune flavor. Thanks to several analytical approaches including preparative gas chromatography, p-menth-1-en-3-one (piperitone), has been identified in red wines. The olfactory detection threshold of this terpene reminiscent of mint was 0.9μg/L in model hydroalcoholic solution and 70μg/L in red wines. Chiral multidimensional GC-MS was used to show that piperitone was present mainly in the (R) form in red wines. The concentration of piperitone in aged red wines ranged from a few ng/L to 435ng/L, but the level was not linked to the age of the wine nor to its premature evolution.
authors.affiliation: Seguin Moreau France, Z.I. Merpins, B.P. 94, F-16103 Cognac, France; Univ. Bordeaux, ISVV, EA 4577, Unité de recherche OENOLOGIE, F-33882 Villenave d'Ornon, France. Electronic address: alexandre.pons@u-bordeaux.fr.
authors.forename: Alexandre
authors.initials: A
authors.lastname: Pons
authors.affiliation: Seguin Moreau France, Z.I. Merpins, B.P. 94, F-16103 Cognac, France; Univ. Bordeaux, ISVV, EA 4577, Unité de recherche OENOLOGIE, F-33882 Villenave d'Ornon, France.
authors.forename: Valérie
authors.initials: V
authors.lastname: Lavigne
authors.affiliation: Univ. Bordeaux, ISVV, EA 4577, Unité de recherche OENOLOGIE, F-33882 Villenave d'Ornon, France; INRA, ISVV, USC 1366 Œnologie, F-33140 Villenave d'Ornon, France.
authors.forename: Philippe
authors.initials: P
authors.lastname: Darriet
authors.affiliation: Univ. Bordeaux, ISVV, EA 4577, Unité de recherche OENOLOGIE, F-33882 Villenave d'Ornon, France; INRA, ISVV, USC 1366 Œnologie, F-33140 Villenave d'Ornon, France.
authors.forename: Denis
authors.initials: D
authors.lastname: Dubourdieu
mesh_terms: D000328:Adult; D000081005:Cyclohexane Monoterpenes; D005638:Fruit; D008401:Gas Chromatography-Mass Spectrometry; D006801:Humans; D027541:Mentha; D008875:Middle Aged; D039821:Monoterpenes / Q000032:analysis*; D064367:Olfactometry; D012903:Smell; D013649:Taste; D055549:Volatile Organic Compounds / Q000032:analysis; D014920:Wine / Q000032:analysis*; D055815:Young Adult
chemical_list: D000081005:Cyclohexane Monoterpenes; D039821:Monoterpenes; D055549:Volatile Organic Compounds; C496656:piperitone
keywords: (+) Piperitone (PubChem CID: 61362); (−) Piperitone (PubChem CID: 107561); 3-Methyl-2,4-nonanedione (PubChem CID: 529481); Flavor; Piperitone; Piperitone (PubChem CID: 6987); Preparative gas chromatography; Red wine