title: Chemical composition of French mimosa absolute oil.
abstract: Since decades mimosa (Acacia dealbata) absolute oil has been used in the flavor and perfume industry. Today, it finds an application in over 80 perfumes, and its worldwide industrial production is estimated five tons per year. Here we report on the chemical composition of French mimosa absolute oil. Straight-chain analogues from C6 to C26 with different functional groups (hydrocarbons, esters, aldehydes, diethyl acetals, alcohols, and ketones) were identified in the volatile fraction. Most of them are long-chain molecules: (Z)-heptadec-8-ene, heptadecane, nonadecane, and palmitic acid are the most abundant, and constituents such as 2-phenethyl alcohol, methyl anisate, and ethyl palmitate are present in smaller amounts. The heavier constituents were mainly triterpenoids such as lupenone and lupeol, which were identified as two of the main components. (Z)-Heptadec-8-ene, lupenone, and lupeol were quantified by GC-MS in SIM mode using external standards and represents 6%, 20%, and 7.8% (w/w) of the absolute oil. Moreover, odorant compounds were extracted by SPME and analyzed by GC-sniffing leading to the perception of 57 odorant zones, of which 37 compounds were identified by their odorant description, mass spectrum, retention index, and injection of the reference compound.
authors.affiliation: LCMBA, UMR CNRS 6001, Université de Nice-Sophia Antipolis, Parc Valrose, 06108 Nice Cedex 2, France.
authors.forename: Rodolphe
authors.initials: R
authors.lastname: Perriot
authors.forename: Katharina
authors.initials: K
authors.lastname: Breme
authors.forename: Uwe J
authors.initials: UJ
authors.lastname: Meierhenrich
authors.forename: Elise
authors.initials: E
authors.lastname: Carenini
authors.forename: Georges
authors.initials: G
authors.lastname: Ferrando
authors.forename: Nicolas
authors.initials: N
authors.lastname: Baldovini
mesh_terms: D005602:France; D031298:Mimosa / Q000737:chemistry*; D009812:Odorants; D010476:Perfume / Q000737:chemistry; D010938:Plant Oils / Q000737:chemistry*; D055549:Volatile Organic Compounds / Q000737:chemistry
chemical_list: D010476:Perfume; D010938:Plant Oils; D055549:Volatile Organic Compounds