title: Kinetic modeling of hydrogen production rate by photoautotrophic cyanobacterium A. variabilis ATCC 29413 as a function of both CO2concentration and oxygen production rate.
abstract: Hydrogen production by cyanobacteria could be one of the promising energy resources in the future. However, there is very limited information regarding the kinetic modeling of hydrogen production by cyanobacteria available in the literature. To provide an in-depth understanding of the biological system involved during the process, the Haldane's noncompetitive inhibition equation has been modified to determine the specific hydrogen production rate (HPR) as a function of both dissolved CO2concentration (CTOT) and oxygen production rate (OPR). The highest HPR of 15 [Formula: see text] was found at xCO2of 5% vol/vol and the rate consequently decreased when the CTOTand OPR were 0.015 k mol m-3and 0.55 mL h-1, respectively. The model provided a fairly good estimation of the HPR with respect to the experimental data collected.
authors.affiliation: a Centre for Renewable Energy , Universiti Tenaga Nasional, Putrajaya Campus , Kajang , Selangor , Malaysia.
authors.forename: Siti Fatihah
authors.initials: SF
authors.lastname: Salleh
authors.affiliation: b Low Carbon Economy Research Group, School of Chemical Engineering , Universiti Sains Malaysia, Engineering Campus, Nibong Tebal , Penang , Malaysia.
authors.forename: Azlina
authors.initials: A
authors.lastname: Kamaruddin
authors.affiliation: b Low Carbon Economy Research Group, School of Chemical Engineering , Universiti Sains Malaysia, Engineering Campus, Nibong Tebal , Penang , Malaysia.
authors.forename: Mohamad Hekarl
authors.initials: MH
authors.lastname: Uzir
authors.affiliation: b Low Carbon Economy Research Group, School of Chemical Engineering , Universiti Sains Malaysia, Engineering Campus, Nibong Tebal , Penang , Malaysia.
authors.forename: Abdul Rahman
authors.initials: AR
authors.lastname: Mohamed
authors.affiliation: a Centre for Renewable Energy , Universiti Tenaga Nasional, Putrajaya Campus , Kajang , Selangor , Malaysia.
authors.forename: Abdul Halim
authors.initials: AH
authors.lastname: Shamsuddin
mesh_terms: D017033:Anabaena / Q000378:metabolism*; D002245:Carbon Dioxide / Q000378:metabolism*; D006859:Hydrogen / Q000378:metabolism*; D007700:Kinetics; D010100:Oxygen / Q000378:metabolism*
chemical_list: D002245:Carbon Dioxide; D006859:Hydrogen; D010100:Oxygen
keywords: Anabaena variabilis; Haldane; biohydrogen; cyanobacteria; kinetic modeling; noncompetitive inhibition