Integrated systems for biopolymers and bioenergy production from organic waste and by-products: a review of microbial processes

Table 9 Hydrogen yields of different substrates.

Substrate	Strain	Hydrogen yield	References
Sucrose	Clostridium butyricum CGS5	2.78 [mol H₂ mol⁻¹ substrate]	[159]
Glucose	Escherichia coli strains	2 [mol H₂ mol⁻¹ substrate]	[162]
Glucose	Thermotoga neapolitana	1.6 [mol H₂ mol⁻¹ substrate]	[155]
Molasses	Thermotoga neapolitana	2.6 [mol H₂ mol⁻¹ substrate]	[155]
Rice straw	Thermotoga neapolitana	2.7 [mol H₂ mol⁻¹ substrate]	[156]
Cheese whey	Thermotoga neapolitana	2.4 [mol H₂ mol⁻¹ substrate]	[155]
Cheese whey	Clostridium saccharoperbutylacetonicum ATCC 27021	2.7 [mol H₂ mol⁻¹ substrate]	[161]
Starch	Mesophilic bacterium HN001	2 [mol H₂ mol⁻¹ substrate]	[163]
Starch	Mixed culture from compost	133 [ml H₂ g⁻¹ hexose]	[166]
Cellulose	Mixed culture from sludge	92 [ml H₂ g⁻¹ hexose]	[164]
Mixed waste	Mixed culture from anaerobic digestion sludge	201 [ml H₂ g⁻¹ hexose]	[168]
Food waste	Mixed culture from anaerobic digestion sludge	210 [ml H₂ g⁻¹ hexose]	[167]
Acetate	Rhodopseudomonas palustris WP3-5 in Photobioreactor	62.3 [mol H₂ mol⁻¹ substrate]	[120]
Rice husk	Clostridium butyricum CGS5	17.24 [mmol H2 g⁻¹ cellulose]	[160]

ISSN: 2731-3654