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Articles by A.A. Ogunnowo
Total Records ( 2 ) for A.A. Ogunnowo
  A.A. Ogunnowo , C.N. Ezekiel , C.P. Anokwuru , Y.A. Ogunshola and O.O. Kuloyo
  The possibility of producing a highly competitive water-soluble hard soap fortified with O. gratissimum extract (Ts) which will inhibit the growth and activity of Candida and staphylococci was investigated in comparison to a commercial standard soap (Ss) and the control soap without an extract (Cs). The standard agar well diffusion method and broth micro-dilution assay technique were used for the antimicrobial potency determination of the soap samples and Minimal Inhibitory Concentrations (MIC) respectively. The pH range of the soap samples was 9.8-10.2 ±0.2. Ts had clear forest green coloration as compared to the creamy appearance of Ss and Cs. The moisture content (%), foamability (cm) and total fatty matter (%) values for Ts were 19.7±0.02, 13.4±0.03 and (10.0±0.01), respectively. The inhibitory activity of soap fortified with O. gratissimum against all Candida sp. and Staphylococci was significant over Cs but insignificant towards Ss (p<0.05). The sensitivity values (mm) for C. albicans, C. parapsilosis and the staphylococci to Ts ranged between 9.5±0.02-23.1±0.01, 8.7±0.00-21.5±0.02 and 6.5±0.01-26.5±0.02, respectively, as compared to their low sensitivity to Cs, (6.2±0.01-17.0±0.00), (6.5±0.01-15.8±0.00) and (6.2±0.01-18.0±0.00), respectively. The MIC was 0.0312 and 0.0156 g mL-1 for the Ss and Cs and Ts, respectively for all isolates (Candida and staphylococci). On an overall, Ts was highly comparable with Ss as compared to the Cs in terms of general acceptability, texture and fragrance and other analyzed parameters.
  K.O. Ogunwenmo , O.A. Oyelana , O. Ibidunmoye , G. Anyaso and A.A. Ogunnowo
  Effluent-laden water bodies have increasingly been used as sources of irrigation for arable crops to ensuring year round food production and sufficiency. Toxicity of living tissues may result from substances accumulated in the growth medium through the food chain. In order to assess the suitability or otherwise of some industrial wastewater for irrigation purposes, germination experiment was performed on seeds of Amananthus hybridus and Celosia argentea presoaked in 50 and 100% concentration of brewery, textile and paint effluent for 30 min to 3 h. Longer duration of seeds in presoaked medium (3 h) increased germination rate (0.92) and percentage (95%) of A. hybridus significantly (p<0.05) to optimum level in 50% diluted brewery effluent. Though, the effluent generated gradual increase in germination of C. argentea with increasing presoaking period, the maximum germination (25 and 35%) was below the control untreated seeds (45%). Fifty percent textile effluent favoured germination in A. hybridus up to the control level (70%) at 2 h with higher rate (0.63). Germination decreased (45%) significantly (p<0.05) beyond 2 h. One hundred percent and 50% textile effluent significantly decreased (p<0.05) germination in A. hybridus (5-20%) and C. argentea (5-10%), respectively and totally toxic to C. argentea at 100%. The rate and percentage seed germination of A. hybridus and C. argentea decreased significantly (p<0.05) as the presoaking period increased in paint effluent becoming toxic beyond 1 and 1½ h, respectively. Industrial effluent may be environmentally harmful if not properly treated or diluted.
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