title: Variation in the volatile constituents of different plant parts of Ligusticopsis wallichiana from western Himalaya, India.
abstract: The essential oil composition of the leaves, stem, flowers and roots of Ligusticopsis wallichiana (DC.) Pimenov & Kljuykov were analyzed by GC-FID and GC-MS methods. Forty-five constituents, forming 93.2%-97.8% of the oil compositions, were dominated by acetylenic (31.5%-92.8%) compounds and sesquiterpenoids (0.3%-44.4%). The leaf essential oil was mainly composed 3,5-nonadiyne (35.8%), beta-selinene (20.9%), alpha-funebrene (10.1%) and (Z)-falcarinol (6.1%). The stem oil was dominated by acetylenic compounds (73.8%) represented by 3,5-nonadiyne (67.8%) and (Z)-falcarinol (5.7%). On the contrary, the major components of the flower essential oil were sesquiterpenoids (37.5%), such as germacrene D (16.6%), alpha-funebrene (7.4%), and acetylenic compounds (31.5%), such as (Z)-falcarinol (21.0%) and 3,5-nonadiyne (10.0%). Monoterpenoids constituted 23.9% of the flower oil with limonene (19.9%) as the single major constituent. The essential oil of the roots was dominated by 3,5-nonadiyne (90.5%). The results showed considerable qualitative and quantitative variations in the essential oil compositions of the different plant parts of L. wallichiana. (Z)-Falcarinol (1.9%-21.0%) and alpha-funebrene (0.1%-10.1%) were reported for the first time from the essential oils of L. wallichiana.
authors.affiliation: CSIR-Central Institute of Medicinal and Aromatic Plants, Research Center, Pantnagar-263 149, Uttarakhand, India. padaliarc@rediffmail.com
authors.forename: Rajendra C
authors.initials: RC
authors.lastname: Padalia
authors.forename: Ram S
authors.initials: RS
authors.lastname: Verma
authors.forename: Amit
authors.initials: A
authors.lastname: Chauhan
authors.forename: Chandan S
authors.initials: CS
authors.lastname: Chanotiya
authors.forename: Anju
authors.initials: A
authors.lastname: Yadav
mesh_terms: D019661:Apiaceae / Q000737:chemistry*; D007194:India; D009822:Oils, Volatile / Q000737:chemistry; D018515:Plant Leaves / Q000737:chemistry*; D010938:Plant Oils / Q000737:chemistry; D018547:Plant Stems / Q000737:chemistry*
chemical_list: D009822:Oils, Volatile; D010938:Plant Oils