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Articles by A. Nasiru
Total Records ( 3 ) for A. Nasiru
  A. Nasiru , B.F. Muhammad and Z. Abdullahi
  The current study was conducted to evaluate the effect of holding time and potash concentration on organoleptic properties of cooked red and white meat. Four classes each of red and white meat was used in the study and includes chicken, duck, turkey and rabbit for white meat and beef, chevon, mutton and camel for red meat. The meat was cut into nine different portions and each portion was cooked separately at 60°C and for 5, 10 and 20 min with 0, 5 and 10 g L-1 potash (KCl). The experiment was conducted using 2x3x3 factorial arrangement of completely randomized design. The results show significant difference (p<0.05) in tenderness, flavour, juiciness and overall acceptability between red and white meat. No significant difference (p>0.05) was reorded in meat tenderness and overall acceptability due to coking time. The concentration of potassium used significantly affected (p<0.05) the overall acceptability of cooked meat. It was concluded that cooking meat at 60°C for 20 min with 5 g L-1 potash increased tenderness and overall acceptabilty of meat. Treated mutton was the most preferred meat type by the respondents.
  A.A. Njidda and A. Nasiru
  A study was conducted to determine the chemical composition, in vitro dry matter digestibility and in vtro fermentation of four dorminant browse species in the region of experimentation (Leuceana lecocephala, Moringa Oleafera, Acacia tortilis and Ziziphus mucronata). Crude Protein (CP) (from 13.96% DM for A. tortilis to 19.42% DM for L. leucocephala) except M. oleifera which had the highest (21.42% DM). The range of lignocelluloses (acid detergent fibre, ADF) was from 21.16 g/100 g DM for A. tortilis to 31.39 g/100 g DM for M. oleifera. The netral detergent fibre ranged from 33.31 g/100 g DM for M. oleifera to 58.81 g/100 g DM. CF, EE and ash had a range of 20.00% DM for Z. mucronata to 32.53% DM for M. oleifera, 3.03% DM for A. tortilis to 5.33% DM for Z. mucronata and 10.76% DM for A. tortilis to 17.76% DM for L. leucocephala. The Total Condensed Tannin (TCT) for the browses ranged from 0.25 mg/g DM for M. oleifera to 2.96 mg/g DM for L. leucocephala. Z. mucronata had the highest value for Calcium (Ca), Magnesium (Mg), Sodium (Na) and Potassium (K) except for phosphorus. In vitro gas and methane production was highest in Z. mucronata. The IVDMD ranged from 70.66-72.00%. CP and TCT showed a positive relationship with IVDMD.
  A. Nasiru , A.N. Isah , S.I. Bello , Y.S. Mohammed , M.M. Usman and A.S. Shettima
  Kaolin is a very important substance commonly used in many industrial chemical production processes due to its physical properties such as whiteness and brightness in addition to its chemically inert nature. In its raw form, kaolin contains quite a few numbers of different kinds of impurities that must be removed before it is used for production of other chemicals. Kaolin is beneficiated (treated) for removal of impurities capable of distorting its usage in chemical processes. Thus, this article presents the design and construction of a highly efficient parallel air cyclone system with a feeding capacity of 182 kgh–1 using Computer Aided Process and Equipment Design (CAPED) Software package. The system was tested and the yield obtained is 30.1%. This result is a significant improvement compare to the average yield of 15% reported in literature for a single state cyclone system. In addition, the parallel cyclone has an average pressure drop of 746.7 Pa and the Particle Size Distribution (PSD) analysis shows that the clay content significantly improves from 46% to an average of 65% after beneficiation. The X-ray Diffraction Analysis (XRD) analysis also showed that the level of beneficiation obtained using the rig improved the kaolinite content in the raw kaolin to an average of 67.8%, the quartz in the feed was reduced to an average of 86.3% while the mica in the feed was reduced by an average of 56.7%.
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