Journal of Advanced Chemical Engineering

Ilham Mardad

Publications

• Research Article
  Effect of Carbon, Nitrogen Sources and Abiotic Stress on Phosphate Solubilization by Bacterial Strains Isolated from a Moroccan Rock Phosphate Deposit
  Author(s): Ilham Mardad, Aurelio Serrano and Abdelaziz SoukriIlham Mardad, Aurelio Serrano and Abdelaziz Soukri
  
  Experiments were conducted to evaluate the solubilization of tri-calcium phosphate (TCP) by phosphate-solubilizing bacterial isolates PSB 4, 5 and 6 identified as Enterobacter sp., Bacterium DR172, and Enterobacter hormaechei, respectively, in addition to Acinetobacter sp. used as a positive control strain. The study was carried out in culture media using different carbon and nitrogen sources, and under different abiotic stress conditions such as high salt, pH, and temperature. The effect of EDTA on growth was also tested. Organic acids produced by the PSB isolates were also determined by reverse phase HPLC. The isolates behave differently with different types of N- and C-sources and seem to adapt to different conditions, with glucose significantly promoting TCP solubilization in allcases. The highest production of orthophosphate (866 mg.L-1, pH 3.2) was showed by Enterobacter hormaec.. View More»
  DOI: 10.4172/2090-4568.1000102

  Abstract PDF