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Articles by V.O. Ajibola
Total Records ( 4 ) for V.O. Ajibola
  B.A. Anhwange , V.O. Ajibola and S.J. Oniye
  The seeds of Moringa oleifera Lam (family: Moringaceae) and Detarium microcarpum Guill and Sperr (family: Caesalpiniodeae) were analysed for nutritional and antinutritional contents and chemical properties of the oils extracted from the seeds were also determined. The concentrations (mg g-1) of the essential elements, potassium, calcium, magnesium, sodium, sulphur, phosphorus and iron were 77.4, 20.50, 1.19, 2.999, 3.75, 1.365 and 1.4, respectively for M. oleifera and 105.00, 23.0, 0.22, 2.36,16.25, 1.25 and 3.12 for D. microcarpum, respectively. Moringa oleifera contained higher amount of proteins and lipids (40.19 and 41.58%, respectively) than in D. microcarpum that contained 11.24 and 35.94% of protein and lipids, respectively. The amount of carbohydrate was highest in Detarium microcarpum (42.20%) than M. oleifera (9.11%). Moringa oleifera contained higher concentration of phytate (10.18 mg/100 g), hydrogen cyanide (0.58 mg/100 g) and saponin (2.052%) than D. microcarpum. The iodine values of the oils in M. oleifera and D. microcarpum were 59.48 and 58.02, respectively. Saponification values were in the range of 179-220.66. The acid value, free fatty acid and peroxide values were low (less than 9.0). The ester values of the oils ranged from 173.57-212.54. The high elemental composition, protein, lipid and carbohydrate contents of the seeds suggests that they could serve as supplementary sources of essential nutrients to man and livestock, provided the anti-nutritional content of the seeds are considerably reduced or eliminated.
  B.A., Anhwange , V.O. Ajibola and F.G Okibe
  The seeds of Hibiscus sabdariffa were analysed for nutritional and anti-nutritional factors. The concentration (mg g-1) of minerals indicates potassium to be the highest 1505.0. Magnesium and calcium were 322.2 and 218.2 (mg g-1) respectively. The concentration (mg g-1) of sodium, aluminium, manganese and chlorine were 12.5, 46.6, 7.6 and 24.5 respectively. Protein, lipid, soluble carbohydrate and fibre contents were 19.84, 28.10 33.0 and 6.33% respectively. The result of anti-nutritional factors indicates that the concentration (mg 100 g-1) of phytate, hydrogen cyanide and trypsin inhibitory activity were 5.90, 0.29 and 9.23, respectively. Tannins and saponin contents were 0.16 and 2.20% respectively. The result of the analysis showed that the seeds of Hibiscus sabdariffa could serve as a good food supplement for man and livestock if further processing methods are employ to eliminate the little toxicant inherent in the seeds.
  B.A. Anhwange , V.O. Ajibola and S.J. Oniye
  The seeds of Moringa oleifera (Lam.) Detarium microcarpum (Guill and Perr) and Bauhinia monandra (Kurz.) were analysed for essential, essential trace and non-essential elements. Detarium microcarpum had high amount of potassium (105 mg gG ), sulphur (1.63 mg gG ) and iron (3.12 mg gG ), while B. monandra had high amount of calcium (77.9 mg gG) magnesium (2.87 mg gG ) and phosphorus (1.59 mg gG ) sodium concentration as highest (2.999 mg gG ) in M. oleifera. The concentration 1 1 of essential trace elements in the seeds varied, the iodine (5.42 mg gG ) was found to be 1 highest in D. microcarpum and the lowest was molybdenum (0.011 mg gG ) in M. oleifera. The concentration of the non-essential and rare earth elements (arsenic, lead, tin, nickel, bromine, vanadium, cobalt, rubidium, strontium, yttrium, zirconium, thallium and niobium) were found to be low (<0.70 mg gG ) in 1 the three seeds. The concentration of thallium was 1.10, 1.96 and 1.69 mg gG in M. oleifera, 1 D. microcarpum and B. monandra, respectively. The results indicate that the mineral contents of these wild plants are comparable with average values of common fruits and seeds. Therefore, they could serve as supplementary sources of mineral nutrients for man and livestock.
  S.E. Elaigwu , V.O. Ajibola and F.M. Folaranmi
  Concentration of some metals (Cd, Cu, Fe, Pb and Zn) was measured in Eudrilus eugenia and used to indicate soil pollution resulting from dumpsites located in two cities of northern Nigeria. The result of the current experiment showed that samples from the uncontaminated and dump sites showed in most cases levels of metal to be lower in earthworm than in soil samples. The ratios of the level of metals in earthworm to soil obtained for this work were in all cases less than unity. The metal concentration in both soil and earthworm followed the trend Cu>Fe>Zn>Pb>Cd Dump sites located closest to the highways showed high Pb concentrations.
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