Effects of Constant Electric Field on Biodegradation of Phenol by Free and Immobilized Cells of Bradyrhizobium japonicum 273

نویسندگان

چکیده

It is shown that bacteria Bradyrhizobium japonicum 273 were capable of degrading phenol at moderate concentrations either in a free cell culture or by immobilized cells on granulated activated carbon particles. The amount degraded was greater an preparation than culture. application constant electric field during cultivation led to enhanced biodegradation and carbon. highest removal efficiency observed for anode potential 1.0 V/S.H.E. effect better pronounced enzyme activities oxidation benzene ring cleavage very sensitive the first two steps metabolic pathway catalyzed hydroxylase—catechol-1,2-dioxygenase catechol-2,3-dioxygenase. 0.8 V/S.H.E., meta-pathway catechol-2,3-dioxygenase became competitive with ortho-pathway, catechol-1,2-dioxygenase. obtained results showed positive rather due stimulation activity electrochemical oxidation.

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ژورنال

عنوان ژورنال: ChemEngineering

سال: 2021

ISSN: ['2305-7084']

DOI: https://doi.org/10.3390/chemengineering5040075