African Journal of
Microbiology Research

  • Abbreviation: Afr. J. Microbiol. Res.
  • Language: English
  • ISSN: 1996-0808
  • DOI: 10.5897/AJMR
  • Start Year: 2007
  • Published Articles: 5233

Full Length Research Paper

Production of calcium gluconate from cassava by Penicillium citrinum SCG-112

Hai-Yan Sun1,2, Pingjuan Zhao1,2, Juanhua Li1, Enshi Liu1 and Ming Peng1,2*
  1Institute of Tropical Bioscience and Biotechnology, Chinese Academy of Tropical Agricultural Sciences, Key Laboratory of Tropical Crop Biotechnology, Ministry of Agriculture, Haikou 71101, China. 2School of Agriculture, Hainan University, Haikou 571101, China.
Email: [email protected]

  •  Accepted: 14 December 2011
  •  Published: 30 December 2011



The feasibility of using cassava powder as the main material for production of calcium gluconate by Penicillium citrinum SCG-112 was evaluated in this study. The effect of incubation temperature, initial pH of the medium and inoculum size on production of calcium gluconate was investigated. The maximum yield of calcium gluconate (155 g/L) was obtained after 36 h incubation. The result was both technically competitive and economically attractive.


Key words: Calcium gluconate, cassava, Penicillium citrinum.