title: Locational comparison of essential oils from selected conifers of Himachal Pradesh.
abstract: Nine samples of essential oil from needles of three conifers of Pinacea family namely Abies pindrow, Picea smithiana and Cedrus deodara collected from three different locations of Himachal Pradesh (India) were evaluated using gas chromatography and gas chromatography-mass spectrometry. A total of 31, 17 and 13 compounds were identified from essential oil of A. pindrow, P. smithiana and C. deodara, respectively. Among the characterised components, monoterpenoid hydrocarbons were predominated. α-Pinene, β-pinene, β-merycene, limonene and camphene were characterised as major components. Oil of C. deodara has significant effect of location on its oil composition. Principle component analysis on gas chromatographic data reveals variation in chemical composition which may be attributed to altitude and environmental conditions.
authors.affiliation: a Natural Product Chemistry and Process Development Department , CSIR-Institute of Himalayan Bioresource Technology , Palampur , India.|b Academy of Scientific and Innovative Research , New Delhi , India.
authors.forename: Shruti
authors.initials: S
authors.lastname: Sharma
authors.affiliation: a Natural Product Chemistry and Process Development Department , CSIR-Institute of Himalayan Bioresource Technology , Palampur , India.|b Academy of Scientific and Innovative Research , New Delhi , India.
authors.forename: Vinod
authors.initials: V
authors.lastname: Bhatt
authors.affiliation: a Natural Product Chemistry and Process Development Department , CSIR-Institute of Himalayan Bioresource Technology , Palampur , India.|b Academy of Scientific and Innovative Research , New Delhi , India.
authors.forename: Neeraj
authors.initials: N
authors.lastname: Kumar
authors.affiliation: a Natural Product Chemistry and Process Development Department , CSIR-Institute of Himalayan Bioresource Technology , Palampur , India.|b Academy of Scientific and Innovative Research , New Delhi , India.
authors.forename: Bikram
authors.initials: B
authors.lastname: Singh
authors.affiliation: a Natural Product Chemistry and Process Development Department , CSIR-Institute of Himalayan Bioresource Technology , Palampur , India.|b Academy of Scientific and Innovative Research , New Delhi , India.
authors.forename: Upendra
authors.initials: U
authors.lastname: Sharma
mesh_terms: D028202:Abies / Q000737:chemistry; D000081008:Bicyclic Monoterpenes; D001643:Bridged Bicyclo Compounds / Q000032:analysis / Q000302:isolation & purification; D028203:Cedrus / Q000737:chemistry; D002849:Chromatography, Gas; D053138:Cyclohexenes / Q000032:analysis / Q000302:isolation & purification; D004777:Environment; D008401:Gas Chromatography-Mass Spectrometry; D007194:India; D000077222:Limonene; D039821:Monoterpenes / Q000032:analysis / Q000737:chemistry / Q000302:isolation & purification; D009822:Oils, Volatile / Q000737:chemistry*; D013729:Terpenes / Q000032:analysis / Q000302:isolation & purification; D064028:Tracheophyta / Q000737:chemistry*
chemical_list: D000081008:Bicyclic Monoterpenes; D001643:Bridged Bicyclo Compounds; D053138:Cyclohexenes; D039821:Monoterpenes; D009822:Oils, Volatile; D013729:Terpenes; C010789:beta-pinene; D000077222:Limonene; C019286:camphene; C005451:alpha-pinene
keywords: Abies pindrow; Cedrus deodara; Picea smithiana; essential oil composition; monoterpenoids; principle component analysis