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Articles by T. Yahaya
Total Records ( 2 ) for T. Yahaya
  E.O. Oladele , P.G.C. Odeigah and T. Yahaya
  The toxic effects of Paint, Battery and Textile effluents respectively on Vigna unguiculata (L.) Walp (Cultivar It 84 E-124) were evaluated in this study. Viable seeds were planted in 25, 50, 75% and neat (undiluted) effluents. Distilled water was used as control. The Physico-chemical characteristics of the effluents were analyzed. Heavy metals such as Zinc being 35.6 mg L-1 in Paint effluent, copper and lead were 10.5 mg L-1 in Battery effluent were found to be above Federal Environmental Protection Agency’s limit suggesting toxic impact on the seedling. Leaf size, stem length and root length were observed to be responsive to the concentration gradient of the effluents. Dry weight declined with a positive response from mean value of 1.18 g for 25% Textile to 0.11 g for 25% Key paint. The test plant indicated high concentration of heavy metals in its biomass, for instance, 75% flash battery with highest fresh weight of 1.75 g except for textile effluent with 1.45 g. Textile effluent was also found to favour chlorophyll formation leading to photosynthesis while the other effluents were found not to be in favour of chlorophyll production. The mean total chlorophyll for control is 56.43 mg g-1, Undiluted Textile being 51.45 mg g-1, while Key paint has 9.11 mg g-1. Howbeit, the severity of toxicity of the industrial effluents follow this trend; key paint higher than flash battery which is higher than textile at the different treatment concentrations of 25, 50, 75% and neat (undiluted). Suggesting that at very low concentration, Vigna unguiculata thrives better in textile effluents contaminated environment than battery and paint effluents. It is suggested that these parameters in cowpea may constitute methods of environmental monitoring.
  T. Yahaya , J. Okpuzor and T. Ajayi
  The bio-protective efficacy of medicinal plants on cells, organs and systems of animals living in industrial societies were assessed. The prophylactic efficacy of Roselle, Moringa, Ginger, Ugwu and their mixture on the hematology and serum protein of albino rats exposed to cement dust were evaluated. Albino rats, grouped into six comprising ten rats per group, were exposed to cement dust at about 200 m from a cement factory. The control group (group 1) was given distilled water, while the test groups (groups 2-6) were given extracts of Roselle, Moringa, Ginger, Ugwu and the mixture of their extracts, respectively. The rats had access to pellet feeds and water ad libitum and were monitored daily for 180 days. The hematology and blood serum analysis of the test rats showed significant (p<0.05) healthy conditions of the packed cell volume, hemoglobin, red blood cells, white blood cells and serum protein compared to the control rats. Furthermore, the blood of the control rats had time-dependent microcytosis, macrocytosis, anisocytosis, hypochromasia, lymphocytosis and eosinophilia. However, the blood of the test rats showed normal to mild anemic conditions observed in the control rats. The results of the study highlight the efficacy and effectiveness of medicinal plants in disease prevention and control. It also calls for various governments’ participation in medicinal plant research by way of funding.
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