COMPARATIVE PHYSIOCHEMICAL PROPERTIES OF ANACARDIUM OCCIDENTALE AND BLIGHIA SAPIDA SEED OILS

*Famobuwa O. E., Adekunbi E. A., Ojo B. M. and Ogungbemi T. S.

ABSTRACT

A comparative investigation was carried out on the seed oils of A. occidentale and B. sapida for their physiochemical properties. Oils were extracted from the respective powdered seeds using Soxhlet extraction technique giving 17.14± 0.5 and 18.01±0.13% yields for A. occidentale and B. sapida respectively. The seed oils were subjected to physiochemical analysis using standard protocols as prescribed by the American Oil Chemist Society (AOCS) and the American Society for Testing and Materials (ASTM). The chemical characterization of the oils gave iodine values of 78.9±1.5 for A. occidentale oil and 88.7±1.1 for B. sapida oil and saponification values of 187.4 ± 2.7 and 195.8 ± 2.0 respectively for A. occidentale and B. sapida respectively. Similarly, acid values of 3.9±1.2 mg KOH/kg and 5.7±0.6 mg KOH/kg were obtained for A. occidentale and B. sapida seed oils respectively. A. occidentale gave 6.0±1.2 peroxide value as against 10.0±1.0 for B. sapida. The physiochemical results obtained showed that A. occidentale and B. sapida seed oils have the potential for use in a number of industrial applications.

Keywords: Anacardium, Blighia, Seed oil, Physiochemical, Extraction, Dehulling.