Abstract
The potential of Chlorella vulgaris as a feedstock for production of oxalic acid through fermentation process was investigated. Chlorella vulgaris was obtained by blooming in 60:40 industrial effluents and freshwater under natural illumination by submerged fermentation at a retention period of 14days. The Aspergillus niger spores were standardized and inoculated into the algal formulated medium for oxalic acid production and the oxalic acid produced was assayed using gas chromatography-mass spectrophotometry. Result showed that the total carbon, nitrogen and phosphates content of the algal slurry were 9.85ppm, 18.73ppm and 1.75ppm respectively. The optimum temperature for the production of the acid was 30 °C and pH 6 respectively. The GC-MS result revealed that the algal formulations produced 8.48mg/g of oxalic acid. This work indicates that algal formulations would serve as a cheaper substrate for oxalic acid production and recommended for industrial application.
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