Investigations on the spontaneous emitted and hydrodistilled volatiles of Platycladus orientalis (L.) Franco grown in four different biogeographic zones of Jordan. (October 2020)

• Record Type: Journal Article
• Authors: Al-Mahmood, Osama A.; Aboalhaija, Nour H.; Abaza, Ismail F.; Talib, Wamidh H.; Afifi, Fatma U.
• Is Part Of: Biochemical systematics and ecology. Volume 92(2020)
• Publication Date: 2020-10
• Subjects: Cupressaceae -- SPME -- Hierarchical cluster analysis -- Volatile organic compounds -- GC/MS -- Leaves; Chemotaxonomy -- Periodicals; Biochemical variation -- Periodicals; Ecology -- Periodicals; Biochemistry -- Periodicals; Ecology -- Periodicals; Chimiotaxinomie -- Périodiques; Variation biochimique -- Périodiques; Écologie -- Périodiques; 578.012
• DOI: 10.1016/j.bse.2020.104109
• Languages: English
• ISSNs: 0305-1978

Abstract

Abstract: The essential oil of the fresh leaves of Platycladus orientalis (L.), grown in four different biogeographic zones of Jordan, - (the Mediterranean, Irano-Turanian, Saharo-Arabian, and Sudanian penetration) -, were obtained by hydrodistillation and analysed by gas chromatography (GC) and gas chromatography-mass-spectrometry (GC/MS). The actual composition of the spontaneous emitted volatiles was obtained using the solid-phase-micro-extraction (SPME) method and investigated using the same chromatographic and spectroscopic methods. Hydrocarbon monoterpenes dominated the hydrodistilled oils and emissions of all regions. Bicyclic monoterpenes (sabinene, α-pinene, and α-thujene) and monocyclic α-terpinene were detected as the major constituents of the oils and emissions. Additionally, hierarchical cluster analysis (HCA) revealed that the clustering is based on the region of collection rather than the applied methodology. Differences were observed in the quantity of the obtained oils ( P -values <0.01); the highest amount of volatile oil was obtained from samples grown in the Irano-Turanian biogeographic zone. Highlights: Platycladus orientalis L. leaves were collected from four biogeographic zones of Jordan. Essential oils were obtained by hydrodistillation. Determination of the volatile organic compounds (VOCs) by SPME. Hierarchical cluster analysis applied. This is the first determination of the composition of the emitted volatiles.