Kanokonyl acetate-rich Indian valerian from northwestern Himalaya.
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.
Mathela
Chandra S
CS
Department of Chemistry, Kumaun University, Nainital-263 002, India. mathelacs@rediffmail.com
Padalia
Rajendra C
RC
Chanotiya
Chandan S
CS
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*
D010938:Plant Oils; D012717:Sesquiterpenes