Bioaugmentation enhances dark fermentative hydrogen production in cultures exposed to short-term temperature fluctuations.

ABSTRACT: Hydrogen-producing mixed cultures were subjected to a 48-h downward or upward temperature fluctuation from 55 to 35 or 75 °C. Hydrogen production was monitored during the fluctuations and for three consecutive batch cultivations at 55 °C to evaluate the impact of temperature fluctuations and bioaugmentation with synthetic mixed culture of known H₂ producers either during or after the fluctuation. Without augmentation, H₂ production was significantly reduced during the downward temperature fluctuation and no H₂ was produced during the upward fluctuation. H₂ production improved significantly during temperature fluctuation when bioaugmentation was applied to cultures exposed to downward or upward temperatures. However, when bioaugmentation was appli

SUBMITTER: Okonkwo O 

PROVIDER: S-EPMC6942602 | biostudies-literature | 2020 Jan

REPOSITORIES: biostudies-literature