Component analysis of orange peel essential oils obtained as a result of different distillation times for hydrodistillation and cold press was determined using a gas chromatography (Agilent 7890A) mass detector (Agilent 5975C) device (GC/MS-FID). Analyzes were carried out with reference to the method used by Özek et al. (2010) . First of all, orange peel essential oil samples were diluted with hexane at a ratio of 1:50. In the chromatographic analysis, a capillary column (HP Innowax Capillary; 60.0 m × 0.25 mm × 0.25 μm) was used as the column, and helium gas at a flow rate of 0.8 mL min -1 was used as the carrier gas. The injection block temperature was set to 250°C. The column temperature program was adjusted as 60°C (10 minutes), from 60°C to 220°C at 4°C/minute and 220°C (10 minutes). The data of Wiley7n, Oil Adams, and Nist05 libraries were used to identify the essential oil components of the samples. The percentage of each essential oil compoenents was determined by using flame ionization dedector values.