Biofuels in Perspective

Table 11.2 Overview of anaerobic and facultative anaerobic hydrogen producing microorganisms (modified from de Vrije and Claassen, 2003 (9)
Organism Domain T-optimum ( ◦ C) Culturing type Substrate H2/glucose Condition Reference
Mesophiles
Enterobacter aerogenes E.82005 B 38 batch glucose 1.0 (10)
Enterobacter aerogenes E.82005 B 38 chemostat molasses 0.7 (11)
Enterobacter aerogenes HU-101 B 37 chemostat glucose 0.6 (12)
Klebsiella oxytoca HP1 B 38 chemostat glucose 1.0 (13)
Clostridium butyricum B 30 chemostat glucose 1.21–1.64 Butyrate formed (14)
Clostridium acetobutylicum B 34 controlled batch glucose 1.4 (15)
Clostridium sp. No 2 B 36 batch glucose 2.0 (16)
Ruminococcus albus B 37 chemostat cellulose 1.4 (17)
37 chemostat cellulose 1.4 (18)
Thermophiles
Clostridium thermosaccharolyticum B 55 batch glucose 0.69 pH 7 (19)
1.63 pH 6
chemostat glucose 1.44 pH 5.5
Clostridium thermocellum JW20 B 60 batch Cellulose 0.68 No stirring (20)
1.23 Stirred
batch cellobiose 0.61 No stirring
1.01 Stirred
batch glucose 1.8
Clostridium thermocellum JW20 B 60 chemostat glucose 3.5 (21)
Clostridium thermocellum LQRI B 60 batch cellobiose 1.33 No stirring (22)
2.86 Stirred
Clostridium thermocellum 27405 B 60 batch cellobiose 0.82–1.55 No stirring (23)
(Continued)