title: Kanokonyl acetate-rich Indian valerian from northwestern Himalaya.
abstract: The volatile composition of rhizomes of Valeriana wallichii DC has been studied by GC, GC/MS and NMR spectroscopy. Sesquiterpenes were shown to be the main constituents (> 89.3%) comprising kanokonyl acetate (42.4%), gamma-curcumene (10.7%), ar-curcumene (7.2%), (Z)-beta-farnesene (3.2%), xanthorrhizol (4.1%), 7-epi-alpha-selinene (2.2%), valeranone (2.0%) and curcuphenol (1.4%). The unique presence of kanokonyl acetate and the complete absence of the earlier reported chemotype marker constituents of Indian valerian viz. maaliol and patchouli alcohol makes the composition significant.
authors.affiliation: Department of Chemistry, Kumaun University, Nainital-263 002, India. mathelacs@rediffmail.com
authors.forename: Chandra S
authors.initials: CS
authors.lastname: Mathela
authors.forename: Rajendra C
authors.initials: RC
authors.lastname: Padalia
authors.forename: Chandan S
authors.initials: CS
authors.lastname: Chanotiya
mesh_terms: D008401:Gas Chromatography-Mass Spectrometry; D007194:India; D019906:Nuclear Magnetic Resonance, Biomolecular; D009904:Optical Rotation; D010938:Plant Oils / Q000737:chemistry*; D027343:Rhizome / Q000737:chemistry; D012717:Sesquiterpenes / Q000737:chemistry / Q000302:isolation & purification*; D013055:Spectrophotometry, Infrared; D014632:Valerian / Q000737:chemistry*
chemical_list: D010938:Plant Oils; D012717:Sesquiterpenes