title: [Aromatic and polyphenolic composition of infused peppermint, Mentha x piperita L].
abstract: The qualitative and quantitative composition of the main aromatic and polyphenolic constituents of Mitcham type peppermint (Mentha x piperita L.) tisane, were examined and compared with those of leaves before and after infusion. The original peppermint leaves contained 2.4% essential oil of which menthol was 0.99%, total polyphenolic compounds 19% and total flavonoid compounds 12% comprising eriocitrin 7%, luteolin-7-rutinoside 1.5%, hesperidoside 0.6% and total hydroxycinnamic compounds 7% (rosmarinic acid 1.4%). The tisane contained 21% of the original essential oil corresponding to 25 mg/l, with increased alcohol and ketone contents and lower contents of hydrophobic terpenecarbons, oxides and esters. It contained also a high proportion of the polyphenolic compounds (about 750 mg/l) corresponding to an extraction yield of 75%. In consequence the monograph "Peppermint leaf" of the Pharmacopoeia should be amended.
authors.affiliation: Laboratoire de Pharmacognosie et Phytothérapie, Faculté de Pharmacie, Clermont-Ferrand.
authors.forename: F
authors.initials: F
authors.lastname: Duband
authors.forename: A P
authors.initials: AP
authors.lastname: Carnat
authors.forename: A
authors.initials: A
authors.lastname: Carnat
authors.forename: C
authors.initials: C
authors.lastname: Petitjean-Freytet
authors.forename: G
authors.initials: G
authors.lastname: Clair
authors.forename: J L
authors.initials: JL
authors.lastname: Lamaison
mesh_terms: D009822:Oils, Volatile / Q000032:analysis / Q000737:chemistry*; D010636:Phenols / Q000032:analysis / Q000737:chemistry*; D010936:Plant Extracts / Q000008:administration & dosage / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*; D017365:Spices
chemical_list: D009822:Oils, Volatile; D010636:Phenols; D010936:Plant Extracts; D010938:Plant Oils
vernacular_title: Composition aromatique et polyphénolique de l'infusé de Menthe, Mentha x piperita L.