TITLE:
Extraction and Modelling of Oil from Eucalyptus camadulensis by Organic Solvent
AUTHORS:
Khalid M. Abed, Badoor M. Kurji, Basma A. Abdul-Majeed
KEYWORDS:
Extraction, Eucalyptus Oil, Modeling
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.3 No.8,
August
7,
2015
ABSTRACT: This work was conducted to study the extraction of eucalyptus oil from natural plants (Eucalyptus
camadulensis leaves) by organic solvents. the effects of the main operating parameters were studied;
type of solvent (n-hexane and ethanol), time to reach equilibrium, the temperature (45°C to
65°C) for n-hexane and (45°C to 75°C) for ethanol, solvent to solid ratio (5:1 to 8:1 (v/w)), agitation
speed (0 to 900 rpm) and the particle size (0.5 to 2.5 cm) of fresh leaves to find the best processing
conditions for the achieving maximum oil yield. The concentration of eucalyptus oil in solvent was
measured by using UV-spectrophotometer. The results (for n-hexane) showed that the agitation
speed of 900 rpm, temperature 65°C with solvent to solid ratio 7:1 (v/w) of particle size 0.5 cm for
210 minute give the highest value of oil (68.5 wt%). Similar conditions for ethanol with the exception
of the temperature (75°C) give the highest yield of oil (65.07 wt%).