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15.
Nutritional Quality of Seed and Physicochemical Properties of Oil of
Guinea peanut (Bombax glabra Pasq.)
*Bello, M.O.,1 Olawore, N.O.,1 Fapojuwo, O.O.,2
Falade, O.S.3 and Adewusi, S.R.A.3
1
Department of Pure and Applied Chemistry 2 Department of Food
Science and Engnr, Ladoke Akintola University of Technology,
Ogbomoso, Nigeria.3 Department of Chemistry, Obafemi Awolowo
University, Ile- Ife, Nigeria.
* Corresponding author:
mobello427@yahoo.com,
08033598709.
Abstract:
The proximate composition of the seed, concentration of mineral
elements and physicochemical properties of the seed oil of
Guinea peanut (Bombax glabra) were determined using standard
methods, the fatty acids profile was by gas chromatograph after
their conversion to methyl esters. The moisture content, crude
protein, crude fat, crude fibre, ash and carbohydrate in g/100g
were 24.13, 34.09, 52.67, 12.01, 7.86 and 15.92 respectively.
The seed oil serves as a good source of essential elements. The
physical properties of the oil indicated that it could be used
as lubricant at low temperature and suitable for deep- frying
purposes while the chemical properties revealed that the acid,
free fatty acid, peroxide and iodine values of the seed oil were
low suggesting their uses as non drying oil. The high fuel
potential of the oil could enhance its conversion to biodiesel.
The gas chromatograph of the oil showed that the concentrations
of total saturated fatty acids were 57.92 % with hexadecenoic
acid predominating having 51.41%; total monoene fatty acids,
10.61 % and total triene fatty acid, 0.28 %. The high level of
saturated fatty acids and low level of monoene and polyene would
account for the low iodine value and other chemical and physical
properties observed.
KEYWORDS: Bombax glabra; proximate composition;
physicochemical properties; seed oil; fatty acids profile.
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