title: Improvement of biohydrogen production under decreased partial pressure of H2 by Enterobacter cloacae.
abstract: When the partial pressure of H(2) was decreased by lowering the total pressure in the headspace of the reactor in a batch fermentation process from 760 mm Hg to 380 mm Hg containing Enterobacter cloacae, the molar yield of H(2) increased from 1.9 mol to 3.9 mol H(2)/mol glucose. The maximum production rate was 0.017 mmol H(2)/h l at 380 mm Hg. The lag period as well as total batch time of H(2) production decreased using a decreased partial pressure.
authors.affiliation: Fermentation Technology Laboratory, Department of Biotechnology, Indian Institute of Technology, Kharagpur 721 302, India.
authors.forename: Biswajit
authors.initials: B
authors.lastname: Mandal
authors.forename: Kaushik
authors.initials: K
authors.lastname: Nath
authors.forename: Debabrata
authors.initials: D
authors.lastname: Das
mesh_terms: D000399:Air Pressure; D000693:Anaerobiosis / Q000502:physiology; D019149:Bioreactors / Q000382:microbiology; D003624:Darkness; D016972:Enterobacter cloacae / Q000378:metabolism*; D005285:Fermentation / Q000502:physiology; D006859:Hydrogen / Q000378:metabolism*; D007218:Industrial Microbiology / Q000295:instrumentation / Q000379:methods*
chemical_list: D006859:Hydrogen