title: Comparison of Chemical Composition and Antioxidant Activity of Four Essential Oils Extracted from Different Parts of Juniperus excelsa
abstract: The chemical contents and compositions of four essential oils extracted from leaves, branches, fruits and gum-resin of Juniperus excelsa from Jabal Al-Akhdhar in the Sultanate of Oman were studied using infra-red (IR) spectroscopy and gas chromatography-mass spectrometry (GC-MS). IR analysis revealed the presence of C-H, O-H, C=C and C=O functionality bonds with varied intensities. The GC-MS study showed the occurrence of 35 different monoterpenes of which 11 (31.43%) monoterpenes were shared by
journal: Maǧallaẗ ǧāmiʿaẗ al-Sulṭān Qābūs li-l-ʿulūm/Sultan Qaboos University journal for science