Simultaneous production of pullulan and biosorption of metals by Aureobasidium pullulans strain CH-1 on peat hydrolysate
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Nikolic, Snezana D.
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It was demonstrated that during the growth of Aureobasidium pullidans strain CH-1 on the acid hydrolysate of peat from the Vlasina Lake, the content of metals (Cu, Fe, Zn, Mn, Pb, Cd, Ni and Cr) decreased due to biosorption. The reduction in the metal content was found to be in the range (%): 38.2-62.2, 67.7-97.3, 0.02-62.05, 0.05-23.97, 0.16-4.24, 3.45-51.72, 1.18-35.82, 0.86-44.44, for Cu, Fe, Zn, Mn, Pb, Cd, Ni and Cr, respectively. During this process, the metals were accumulated in the biomass, while pullulan, an extracellular polysaccharicle produced by Aureobasichum pullidans strain CH-1, was found not to bind the above-mentioned metals.
Кључне речи:peat / Aureobasidium pullulans / metals / biosorption / pullulan
Извор:Bioresource Technology, 2008, 99, 14, 6673-6677
- Elsevier Sci Ltd, Oxford