Browsing by Author "Okoye, U. G."

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    Comparative analysis of macro and micro nutrients of bio waste, compost and vermicompost (using indigenous Lumbricus terrestris) of solanum melongena (fruit) waste
    (CODEN(USA, 2017) Chinweuba, A. J.; Alisa, C. O.; Okoye, U. G.
    There is global demand for organic food due to perceived effects of foods produced with synthetic fertilizers and chemical pesticides. Owing to this, a comparative analysis of macro and micro nutrients in bio waste, compost and vermicompost of Solanum melongena waste were done to ascertain their efficiencies in organic farming. The vermicompost was done with indigenous Lumbricus terrestris (earth worm) in an earthen pot with mixture of Solanum melongena and cow dung in the ratio of 5:1. The biowaste was done in a similar way with exception of cow dung and Lumbricus terrestris. The compost was done similarly with the exception of Lumbricus terrestris. Results showed that macro nutrients (N, P, K, Ca and Mg) and micro nutrients (Fe, Cu, Zn, and Mn) followed this trend; Vermicompost ˃ compost ˃ bio waste, with exception of zinc. Vermicompost and compost of Solanum melongena can be utilized as organic fertilizer in the production of organic foods.
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    ItemOpen Access
    Preliminary study of the potential industrial applications of micro algae (Oscillotoria sp.) oil
    (U. P., 2017) Chinweuba, A. J.; Alisa, C. O.; Okoye, U. G.
    Extraction and characterisation of micro algae (Oscillotoria sp) were done to assay the possible industrial applications of the oil. An open pond system was used to culture the microalgae prior to the oil extraction. Solvent extraction method using n-hexane was used to extract the oil from the algae biomass. The physical and chemical properties of the oil were determined and the results obtained showed that the percentage oil yield was 28. Saponification value of 123mgKOH, iodine value 95g/100g, free fatty acid value of 3.79mg/g and peroxide value of 3.20meq/kg were also obtained. These values showed that Oscillotoria sp oil could be used industrially for the production of alkyd resins, paint polish and body cream.