Gluconic acid production from cane molasses using Aspergillus carneus

Authors

  • Fentahun Tarekegn Researcher, Process Engineering Division, School of Chemical and Bio Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia
  • S. Anuradha Jabasingh Associate Professor , Process Engineering Division, School of Chemical and Bio Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia

Keywords:

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

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 %).

Author Biography

  • Fentahun Tarekegn, Researcher, Process Engineering Division, School of Chemical and Bio Engineering, Addis Ababa Institute of Technology, Addis Ababa University, Addis Ababa, Ethiopia
    ASSOCIATE PROFESSOR, SCHOOL OF CHEMICAL AND BIOENGINEERING

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Published

2019-12-12

Issue

Vol. 6 No. 3 (2019)

Section

Articles

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