Title: | "Essential oil of Plectranthus tenuicaulis leaves from Gabon, source of (R),(E)-6,7-epoxyocimene. An unusual chemical composition within the genus Plectranthus" |
Author(s): | Agnaniet H; Agrebi A; Bikanga R; Makani T; Lebibi J; Casabianca H; Morere A; Menut C; |
Address: | "Laboratoires de Substances Naturelles et de Synthese Organometalliques (LASNSOM), Universite des Sciences et Techniques de Masuku B.P. 943, Franceville, Gabon" |
ISSN/ISBN: | 1934-578X (Print) 1555-9475 (Linking) |
Abstract: | "Water distilled essential oils from leaves of Plectranthus tenuicaulis (Hook. f.) J. K. Morton collected in Gabon were analyzed using GC-FID and GC-MS. The main constituent, unusual within the genus Plectranthus, was isolated and formally identified as being the (+)-(R)-enantiomer of (E)-6,7-epoxyocimene [(E)-myroxide]. This enantiomer, which represents about 75% of the essential oil, has been previously identified as a pheromone emitted by the male fruit-spotting bug Amblypelta nitida; this insect is responsible of destruction of most fruit crops in tropical and subtropical areas. The potential application of P. tenuicaulis essential oil in crop protection programs is discussed and the atypical chemical profile of the gabonese essential oil is compared with those previously reported in the genus Plectranthus (or Coleus)" |
Keywords: | "Alkenes/*chemistry Chromatography, Liquid Gabon Gas Chromatography-Mass Spectrometry Magnetic Resonance Spectroscopy Oils, Volatile/*chemistry Plant Leaves/chemistry Plectranthus/*chemistry/classification Species Specificity;" |
Notes: | "MedlineAgnaniet, Huguette Agrebi, Abdelhamid Bikanga, Raphael Makani, Thomas Lebibi, Jacques Casabianca, Herve Morere, Alain Menut, Chantal eng 2011/04/13 Nat Prod Commun. 2011 Mar; 6(3):409-16" |