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Articles by O.O. Dosumu
Total Records ( 2 ) for O.O. Dosumu
  O.O. Oluwaniyi , O.O. Dosumu , G.V. Awolola and A.F. Abdulraheem
  The pH, titratable acidities, proximate and mineral compositions of two natural colourants and three synthetic colourants were determined. The pH and titratable acidity were determined over a period of 14 days at 24 h intervals. The natural colourants were the calyxes of Hibiscus sabdariffa (SL) and the stem of Sorghum bicolour (KD), while the synthetic colourants were Egg Yellow (EY), Chocolate Brown (CB) and Dark Orange (DO). The pH of all samples increased as the number of days increased. The pH of SL was considerable lower than that of other colourants in this study (from 1.6 on day 1 to 2.7 on day 14) thus suggesting high acidity while the other colourants had basic pH (5.6-6.2 on day 1 to 7.4-8.4 on day 14). The natural colourants had higher moisture, lipid, carbohydrate and fibre contents while the synthetic colourants were very high in ash content. The protein contents of the colourants were fairly uniform irrespective of their sources. The synthetic colourants were particularly high in K and Mg while the natural colourants were rich in Ca.
  M.A. Belewu , T. Fagbemi , O.O. Dosumu and M.O. Adeniyi
  Seeds of Adansonia digitata, Voandzeia subterranean (L.) Thouars, Bilighia sapida, Entada africana, Leucana leucocephala and Mucuna preta were evaluated for their nutritional quality and possible inclusion in ruminant diet. The seeds were analysed for their proximate composition, fibre fractions, mineral composition, energy value and the anti-nutritional factors. The results revealed that the seeds contained between 10.5 and 41.4% crude protein, 7.5 and 22.5% ether extract, 15.5 and 19.5% crude fibre, 17.0 and 39.0% acid detergent fibre, 41.0 and 84.0% neutral detergent fibre and 4.38 and 5.46 kcal/100 g ME. It was also observed that the sodium content was between 0.10 and 0.30 mg/100 g, 1.9 and 15.5 mg/100 g calcium, 8.95 and 46.10 mg/100 g magnesium while the potassium was between 8.95 and 45.15 mg/100 g and the iron content falls between 0.17 and 0.95 mg/100 g. Some anti-nutritional factors (tannin and saponin) were detected and quantified. In conclusion, all the seed samples are potential good sources of dietary energy, protein and mineral content in livestock diet.
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