title: Constituents of Cypriol Oil (Cyperus scariosus R.Br.): N-Containing Molecules and Key Aroma Components.
abstract: Cypriol oil, the essential oil from Cyperus scariosus R.Br., has been investigated to reveal minor nitrogen-containing molecules and minor components responsible for the odor. A total of 21 nitrogenous components are reported, of which epi-guaipyridine (32 mg/kg), guaia-9,11-dienpyridine (9 mg/kg), and cananodine (10 mg/kg) were the most abundant. A new ketone, cyperen-8-one, with a significant woody, ambery odor could also be isolated and identified along with a novel lactone, cyperolactone, and an alcohol. Rotundone was found to have the highest odor-activity value of the measured compounds and, together with the other ketones, contributes to the woody-amber character of cypriol oil.
authors.affiliation: Givaudan Schweiz AG , Ueberlandstrasse 138, CH-8600 Dübendorf, Switzerland.
authors.forename: Robin A
authors.initials: RA
authors.lastname: Clery
authors.affiliation: Givaudan Schweiz AG , Ueberlandstrasse 138, CH-8600 Dübendorf, Switzerland.
authors.forename: Julie R L
authors.initials: JR
authors.lastname: Cason
authors.affiliation: Givaudan Schweiz AG , Ueberlandstrasse 138, CH-8600 Dübendorf, Switzerland.
authors.forename: Veronika
authors.initials: V
authors.lastname: Zelenay
mesh_terms: D029786:Cyperus / Q000737:chemistry*; D005421:Flavoring Agents / Q000737:chemistry*; D008401:Gas Chromatography-Mass Spectrometry; D015394:Molecular Structure; D009822:Oils, Volatile / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry*
chemical_list: D005421:Flavoring Agents; D009822:Oils, Volatile; D010938:Plant Oils
keywords: Cyperaceae; Cyperus scariosus; aroma; cyperen-8-one; cyperolactone; cypriol; guaia-9,11-dienpyridine; nagarmotha; volatiles