Table 2

H2 production rates of various carboxydotrophic hydrogenogenic microbes

OrganismCultivation methodH2 production rate (mmol liter−1 h−1)aSpecific H2 production rate (mmol g−1 h−1)aReference
T. onnurineus NA1 (MC01)Batch123.5b194.7bThis study
T. onnurineus NA1 (wild type)Batch32.9b151.3bThis study
Rhodopseudomonas palustris P4Batch4141 29
Citrobacter sp. strain Y19Batch5.727.1 30
Rhodospirillum rubrum Continuous4.711 31
Rubrivivax gelatinosus CBS-2Continuous2.71.3–33 32
  • a Kinetic parameters were calculated with data from graphs in Fig. S5 in the supplemental material. The unit gram represents dry cell weight.

  • b The values were calculated from data obtained in a bioreactor where 100% CO was continuously fed with a flow rate of 240 ml min−1 (MC01 strain) and 400 ml min−1 (wild-type strain).