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Kinetic models of biological hydrogen production by Enterobacter aerogenes

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Abstract

Dark fermentative hydrogen production from glucose by Enterobacter aerogenes was studied. The kinetic models of modified Gompertz and Logistic were employed to investigate the progress of hydrogen production. The predicted maximum hydrogen production (Hmax) by modified Gompertz and Logistic was 11.92 and 11.28 mL, respectively. The kinetic models of modified Gompertz, Logistic, and Richards were used to study biomass growth in batch experiments. The maximum biomass growth (Xmax) by models of modified Gompertz, Logistic, and Richards was 4.90, 4.85, and 4.95 (g L−1), respectively. The modified Gompertz was applied to simulate the consumption of glucose where the maximum degraded glucose (Smax) was obtained 19.77 g L−1. The correlation coefficients of all the models were over 0.97, which illustrate that the models fit the data very well. However, the modified Gompertz model presents higher R2 and lower RSS and is more appropriate than the other models.

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Acknowledgements

This research was supported by Iranian Research Organization for Science and Technology (IROST) (Grant No. 1012195020).

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Correspondence to Khosrow Rostami.

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The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. The authors declare the following financial interests/personal relationships which may be considered as potential competing interests.

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Boshagh, F., Rostami, K. Kinetic models of biological hydrogen production by Enterobacter aerogenes. Biotechnol Lett 43, 435–443 (2021). https://doi.org/10.1007/s10529-020-03051-4

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  • DOI: https://doi.org/10.1007/s10529-020-03051-4

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