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Gluconic acid production from cane molasses using Aspergillus carneus

Fentahun Tarekegn, S. Anuradha Jabasingh

Abstract


Gluconic acid is a multifunctional organic acid, non-volatile, non-corrosive, non-toxic, readily biodegradable, with environmentally friendly properties. In this study, gluconic acid was produced from the treated molasses using Aspergillus carneus strain under the submerged fermentation. The parameters were studied using the four-factor, three-level Box-Behnken design using  using Design Expert ® version 11. The acid produced was characterized using the Fourier transform infrared spectroscopy. The optimum values of the parameters were observed at a temperature 30 °C, Carbon source concentration of 250 g/L, pH of 7 and incubation time of 7 days  for the maximum yield of gluconic acid (61.96 %).

Keywords


Gluconic acid, Molasses, Aspergillus carneus, Submerged fermentation, Box-Behnken design, Optimization, Yield.

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References


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