Full Length Research Paper

Nutritional Evaluation and Physico-chemical properties of Caesalpina bonduc and Entada gigas oil seeds.

Adeleke, A.E. 1, Adegbite, S.A. 2, Onifade A.P2

Abstract

A comparative study was carried out on the mineral element composition, fatty acid composition and physico-chemical properties of Caesalpinia bonduc and entada gigas seed and oil using Atomic Absorption Spectrophotometer, gas chromatographic technique and standard Analytical methods. The mineral elements composition for C. Bonduc were K (36.68mg/g),Ca (40.98mg/g), Na(475.65mg/g), Mg(13.20mg/g), Zn (61.80mg/g), P(18.5mg/g) Cu(0.06 mg/g), Fe(12.80mg/g) and E. gigas were: K(101.87mg/g), Ca(59.43mg/g) Na(463.57mg/g), Mg(14.20), Zn (66.20mg/g), P(23.86mg/g) Cu(0.08) and Fe (28.3mg/g). The results suggested that C. bonduc and E. gigas were significantly richer in mineral content with sodium (Na) being the most abundant element while the samples were lower in copper (Cu). The fatty acids compositions for C. bonduc and E. gigas showed that the E. gigas seed oil contained of unsaturated fatty acids (57.62) than C. Bonduc seed oil with (13.7%) thus making it more nutritionally important. Also, E. gigas was very rich in essential fatty acids (oleic and linolic) while C. bonduc was richer in saturated fatty acid (non-essential) (palmitic and hexadecadienoic). The physico-chemical properties results for C. bonduc and E. gigas ranges were: Acid value (7.85-8.08), periodic value (0.06-0.10), free fatty acid (2.0 3.33), Iodine value (2.64 5.08), Saponification value (72.93 156), Refractive index (1.441-1.449) and specific gravity. This results in this study suggested that the oils of E.gigas might be useful for domestic consumption due to essential fatty units in it while that of C. bonduc may find applications in industries.

Key words: Physico-chemical properties, Nutritional Evaluation, Caesalpinia bonduc, Entada gigas oil seed.

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