Pulverized flower buds of Syzygium aromaticum were extracted by hydro-distillation using Clevenger apparatus at the Wood extraction research laboratory, Department of Chemistry, University of Ibadan, Nigeria. 600 g of crushed S. aromaticum was loaded into 5L round bottom flask and adequate water was added to cover the plant material. The hydrodistillation was carried out according to British Pharmacopoeia specifications . The flask containing the mixture was heated on top of a heating mantle until ebullition began. The heat caused the oil to be released from the plant, passed through the condenser which condensed the aromatic vapor into essential oil. Three hours later, the essential oil was collected in hexane and allowed to evaporate from the oil. The clove oil was dried over anhydrous sodium sulphate to remove traces of water, stored in vials and kept in the freezer prior to analysis. The yield of the oil obtained was calculated and expressed as percentage weight/weight (%w/w) of the oil.