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Table 3 Hydrogen production from crude glycerol

From: Conversion of residues and by-products from the biodiesel industry into value-added products

Product Microorganism Initial glycerol Yield References
Photofermentation Rhodopseudomonas palustris 20 mM 6.1 mol/mol (Ghosh et al. 2012b)
Dark fermentation Klebsiella pneumoniae 10 % (v/v) 31.16 mol/g (Rossi et al. 2011)
Photofermentation Rhodopseudomonas palustris 10 mM 4.0 g/g (Sabourin-Provost and Hallenbeck 2009)
Dark fermentation Clostridium pasteurianum 10 g/L 0.775 mol/mol (Lo et al. 2013)
Dark fermentation Klebsiella sp. TR17 10 g/L 44.27 mmol/g (Chookaew et al. 2014a)
Photofermentation Rhodopseudomonas palustris 30 mM 7 mol/mol (Ghosh et al. 2012a)
Dark fermentation Enterobacter aerogenes NRRL B-407 10 g/L 2.51 mmol/L (Sarma et al. 2013b)
Dark fermentation Microbial mixed culture 90 % 0.66 mol/mol (Varrone et al. 2013b)
Dark fermentation Enterobacter aerogenes 20 g/L 25 mmol/L (Sarma et al. 2014)
Photofermentation Rhodopseudomonas palustris 10 mM 34 ml/g/h (Pott et al. 2013)
Dark fermentation Enterobacter aerogenes NRRL B 407 10 g/L 116.41 mmol/L (Sarma et al. 2013a)
Dark fermentation Klebsiella sp. TR17 11.14 g/L 0.27 mol/mol (Chookaew et al. 2014b)
Photofermentation Rhodopseudomonas palustris 50 mM 23–27 ml/g/h (Pott et al. 2014)
Dark fermentation Microbial mixed culture 20 g/L 9 L/L (Varrone et al. 2013a)
Dark fermentation Microbial mixed culture 50 % 0.55 mol/mol (Chookaew et al. 2014a)