Physical properties EOA SD MSD Specific gravity (25°C) 0.8420-0.8460 0.8500 0.8430 Refractive index (20°C) 1.4723-1.4737 1.4710 1.4728 Acid value <5 2.8500 2.8500

Table 2: Physical properties of essential oils from orange peel obtained by steam distillation (SD) and microwave steam distillation (MSD).