Wolffia globosa as a biocatalyst in plant-based biofuel cells

The rootless duckweed Wolffia globosa, not explored toward electrogenicity till now, is investigated as a putative biocatalyst in Plant-based Biofuel Cells (P-BFC) for the electrical current generation and its basic metabolic changes during polarization are depicted. After short adaptation period, open-circuit voltage of P-BFC, utilizing W. globosa an anodic biocatalyst, reaches values 630 mV. At connected external resistor 1 kΩ electric circuit, stable densities 170±10 mA m-2 achieved. outputs depend on potential, reaching negative ca. -200 mV (vs. SHE). produces electrochemically active compound, acting electron shuttle. intensifies metabolism, expressed double increased glucose starch content along with 1.82 times higher specific amylase activity 70.0±2.8 U g-1 wet biomass organelle-enriched fractions biocatalysts plants compared to control. results reveal that can be utilized P-BFC simultaneous electricity carbohydrate protein content.