ASSESSMENT OF COW DUNG WASTE FOR THE LABORATORY CULTIVATION OF CHLORELLA FOR LIPID PRODUCTIONO.K. AGWA, S.N. IBE AND G.O. ABUAbstract The growth response of Chlorella was studied under conditions of different media (cow dung extract, synthetic and Bangladesh II) maintained at a temperature of 28 ±2oC within a retention period of 21 days. The organism was obtained by blooming to a deep green colour after 5 days in a 10:90 mixture of pond water and cow dung extract. Under natural illumination biomass yields (dry mass) were cow dung medium 1.75mg/ml, synthetic medium 1.08mg/ml and the Bangladesh medium 0.72mg/ml. Chlorella showed potential for lipid production in the cow dung medium with about 13.3%(w/w) lipids in the wet cells, the others were 6.97%(w/w) for wet cells in the synthetic medium and the Bangladesh II medium 3.0%(w/w) lipid content for wet cells. There is a potential of algal biotechnology by using an inexpensive growth medium formulation such as cow dung waste for the cultivation of this algae (Chlorella).
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