FINAL YEAR THESIS ON EXTRACTION AND CHARACTERIZATION OF ESSENTIAL OIL FROM EUCALYPUS LEAVES FOR PHARMACEUTICAL PURPOSE.

Abstract

Essential oils have gained a renewed interest in several areas in world. Though the raw materials to produce essential oil are highly available in our country, yet there is no enough essential oil production which can satisfy the demand throughout the country. The main objective of this project is to extract and characterize essential oil from eucalyptus leaves for pharmaceutical purpose by using Sox let extraction method. Raw materials were collected and prepared for the experiment through drying, milling and then the extraction of essential oil from eucalyptus leaves was carried out. The major factors considered were extrication time, particle size and solvent to solid ratio. The effect of time .Particle size and Solvent to solid ratio are evaluated. The product was characterized in terms of PH, viscosity, solubility, specific gravity, boiling temperature, evaporation residue, flash point, solubility, acid value, saponification value and iodine number. The maximum product yield was at the particle size , extraction time and solvent to solid ratio . This shows that, increasing extraction time and decreasing particle size increases yield. Characterization value are: PH of , viscosity of maps, flash poit of 50℃ , boiling point 174℃ evaporation residue 98.648%, soluble in alcohol, specific gravity of , acid value of 19.635ml/g, saponification value of 14.00ml/g and iodine number 31.725ml/g. It can be concluded that it is possible to extract essential Oil from eucalyptus (Globules) leaves for pharmaceutical purpose using Soxhlet extraction method