[Effect of initial substrate concentrations and pH on hydrogen production from xylose with Clostridium butyricum T4].
We studied the effect of initial pH and substrate concentrations on the conversion of xylose to hydrogen by Clostridium butyrium T4 at pH 5.0-8.5 and substrate concentrations 5-40 g/L. The cumulative hydrogen volume and the specific hydrogen production rate increased and then decreased with increasing initial pH or substrate concentrations. At initial pH 6.5 and substrate concentration 20 g/L, the cumulative hydrogen production and the specific hydrogen production rate reached the maximum value of 4.26 L/L and 18.86 mmol-H2/h g-DCW (dry cell weight).
State Key Laboratory of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China.
Jie
J
Qiu
Jifei
J
Xu
Nanqi
N
Ren
D046972:Clostridium butyricum / Q000254:growth & development / Q000378:metabolism*; D003470:Culture Media; D005285:Fermentation; D006859:Hydrogen / Q000032:analysis / Q000378:metabolism*; D006863:Hydrogen-Ion Concentration; D013379:Substrate Specificity; D014994:Xylose / Q000378:metabolism*
D003470:Culture Media; D006859:Hydrogen; D014994:Xylose