title: Stable current outputs and phytate degradation by yeast-based biofuel cell.
abstract: In this paper, we report for the first time that Candida melibiosica 2491 yeast strain expresses enhanced phytase activity when used as a biocatalyst in biofuel cells. The polarization also results in an increase of the yeast biomass. Higher steady-state electrical outputs, assigned to earlier production of an endogenous mediator, were achieved at continuous polarization under constant load. The obtained results prove that the C. melibiosica yeast-based biofuel cell could be used for simultaneous electricity generation and phytate bioremediation. In addition, the higher phytase activity obtained by interruptive polarization suggests a new method for increasing the phytase yield from microorganisms.
authors: Department of Biochemistry and Microbiology, 'Paisii Hilendarski' University of Plovdiv, Bulgaria.
authors: Yolina
authors: Y
authors: Hubenova
authors: Danail
authors: D
authors: Georgiev
authors: Mario
authors: M
authors: Mitov
mesh_terms: D010832:6-Phytase / Q000378:metabolism*; D001674:Bioelectric Energy Sources; D001709:Biotechnology / Q000379:methods; D002175:Candida / Q000201:enzymology* / Q000378:metabolism*; D004560:Electricity; D010833:Phytic Acid / Q000378:metabolism*
chemical_list: D010833:Phytic Acid; D010832:6-Phytase
keywords: biocatalysts; biofuel cell; bioremediation; electricity generation; phytase activity; yeast