Journal
PREPARATIVE BIOCHEMISTRY & BIOTECHNOLOGY
Volume 47, Issue 2, Pages 111-115Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/10826068.2016.1181085
Keywords
Anabaena variabilis; biohydrogen; cyanobacteria; Haldane; kinetic modeling; noncompetitive inhibition
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Funding
- Universiti Sains Malaysia [203/PKT/6723003]
- Ministry of Education, Malaysia
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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 CO2 concentration (C-TOT) and oxygen production rate (OPR). The highest HPR of 15 mLg(cell)(-1) h(-1) was found at xCO(2) of 5% vol/vol and the rate consequently decreased when the C-TOT and OPR were 0.015 k mol m(-3) and 0.55 mL h(-1), respectively. The model provided a fairly good estimation of the HPR with respect to the experimental data collected.
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