The Effect of Some Chemical Elements on the Growth Process (Biomass) of Arthrobacter oxydans 61B
Keywords:
Arthrobacter oxydans 61B, Na, K, Mg, Ca, Cu, Zn, Cr, SiAbstract
This work studied the influence of Mg, Ca, Na, K, Cu, Zn, Cr, and Si ions on the growth and development of chromium-resistant bacteria Arthrobacter oxydans 61B. Mg, Ca, Na, and K ions did not affect the growth and biomass of Arthrobacter oxydans 61B, Mg and Ca ions made a positive contribution to the biomass for 144 hours. Copper and Zinc had a detrimental effect on the logarithmic phase of growth. The addition of Si ions made a significant impact on the development of bacterial biomass. We studied the effect of Si on Zn and Cr(VI) uptake with atomic absorption spectrometry. The given concentration of Si ions (400 μg/ml) on the growth medium significantly increased the uptake of Cr up to 6000 μg/g and up to 240 μg/g for Zn.