Hyperthermophile bioelectrochemical systems are seldom investigated although their superior control of microbial consortium and thermodynamic advantages. Hyperthermophilic Thermotogales, for instance, are able to produce hydrogen and lactic acid from wastes better than mesophilic bacteria. Here, the electrostimulation of Thermotoga neapolitana in single-chamber electrochemical bioreactors is studied.

The glucose fermentation under CO₂ pressure, as model metabolism, was tested at 80 °C.

Results show that a dynamic polarization (±0.8 to ±1.2 V) drives glucose fermentation and biofilm stasis on electrodes. Under this condition, production of lactic acid (33 vs 12 mM) and yields of acetate and hydrogen (with lactic/acetic acid ratio of 1.18) were higher than those achieved with static polarization or open-circuit.

Dynamic polarization is possibly exploitable to stimulate T. neapolitana in a hyperthermophile electrochemical system for various applications including control of power-to-gas processes or production of value-added products (hydrogen and lactic acid) from sugary wastes.

尽管超嗜热菌的生物电化学系统具有出色的微生物联盟控制和热力学优势，但很少进行研究。例如，嗜热嗜热菌比嗜温细菌能更好地从废物中产生氢和乳酸。在这里，研究了单腔电化学生物反应器中Thermotoga neapolitana的电刺激。

在80°C下测试了作为模型代谢的CO ₂压力下的葡萄糖发酵。

结果表明，动态极化（±0.8至±1.2 V）驱动葡萄糖发酵和电极上的生物膜滞留。在这种条件下，乳酸的产生（33 vs 12 mM）以及乙酸和氢的收率（乳酸/乙酸比为1.18）要比静态极化或开路时要高。

动态极化有可能被利用来在嗜热嗜热菌电化学系统中刺激T. neapolitana，用于各种应用，包括控制气制过程或由含糖废物生产增值产品（氢和乳酸）。