bioremediation

Developing the Algorithm of Increasing the Destructive Potential of Pseudomonas putida SU12 Native Strain Extracted From Phenol-Contaminated Soils

Authors: Ilyina N. A., Ksenofontova O. Y., Tretyakova S. E., Tikhomirova E. I.

The article presents the development of methodological approaches to increasing destructive potential of Pseudomonas putida SU12 native strain extracted from phenol-contaminated soils. The cyclic selective method on gradual increase of phenol concentration in optoelectronics environment in combination with intermediate stage of accumulative culture is described. The authors proposed a discrete, stepwise increase in the concentration of phenol in elective media depending on degree of its destruction.

Biosorption of Cu (II) by an Exopolysaccharide Isolated from Enterobacter Cloacae K7

Authors: Grinev V. S., Fedonenko Y. P., Neshko А. А., Kryuchkova E. V., Lyubun E. V., Turkovskaya O. V.

An extracellular polysaccharide (EPS) produced by the gram- negative nonpathogenic rhizosphere bacteria Enterobacter cloa- cae K7 was isolated and characterized. The process of biosorption of Cu(II) cations from aqueous solution by the isolated exopoly- saccharides was investigated. The maximum sorption capac- ity was 0.17 mM/mg of EPS or 12 g of Cu(II) per g of EPS at pH 5, T = 25 °C, and incubation for 30 min.