Abstract

In the present study, characteristics of seeds and oil extracted by soxhlet with hexane from Manga groundnut (Arachis hypogeal) are evaluated. The percentage composition of the Manga groundnut seeds is: lipid content (47.43±1.6%), protein content (32.64±0.26%) and Total carbohydrates (17.56±1.33%), moisture (7.58±0.86) and ash (5.67±0.98). The major nutrients (mg/100 g of seeds) found in the seeds are: potassium (2070.00±0.97) magnesium (350.00±0.84), calcium (45.00±0.67) and phosphate (672.19±0.97) and sodium (12.5±0.5). The physical properties of the oil extracts showed the state to be fluid at room temperature (25-30°C) and the color to be pale- yellow or golden-yellow, in general. Chemical properties of the oil extracts, Acid value (Av) 4.56 (oleic acid); Peroxide value (Pv) (2.48 meq O2/Kg), Saponification value (Sv) (258.06 mg KOH/g) and an Iodine value (Iv) of 100.93±1.88 mg/100 were been evaluated. The oil contains high levels of oleic acid C18: 1 (53.18%), followed by linoleic acid C18: 2 (29.74%) and palmitic acid C16: 0 (12.43%). There is slight fraction of stearic acid C18: 0 (1.52%) and Behenic acid C 22: 0 (1.21%). The DSC cooling curves reveal that: cooling point = -12.9°C and cooling enthalpy = 49.64 J/g. The results of the present analytical study show that Manga groundnut oil could be useful as edible oils and for industrial applications.

Keywords:

Characterization, extraction, manga groundnut, nutritional value, seed oil,

References

Competing interests

The authors have no competing interests.

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The authors have no competing interests.