Converting glycerol into hydrogen, ethanol, and diols with a Klebsiella sp. HE1 strain via anaerobic fermentation
| Autor: | Yung Chung Lo, Chun Yen Chen, Ken Jer Wu, Jo Shu Chang, Wen-Ming Chen, Yeuh Hui Lin |
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| Rok vydání: | 2011 |
| Předmět: |
animal structures
Ethanol integumentary system Hydrogen Strain (chemistry) Chemistry General Chemical Engineering Klebsiella sp chemistry.chemical_element General Chemistry chemistry.chemical_compound Biochemistry Yield (chemistry) embryonic structures Glycerol Fermentation Hydrogen production Nuclear chemistry |
| Zdroj: | Journal of the Taiwan Institute of Chemical Engineers. 42:20-25 |
| ISSN: | 1876-1070 |
| DOI: | 10.1016/j.jtice.2010.04.005 |
| Popis: | An isolated Klebsiella sp. HE1 strain was used to produce H 2 and other energy-rich soluble metabolites from glycerol at different pH values, temperatures, and glycerol concentrations. The highest cumulative hydrogen production (6.89 l), H 2 production rate (11.76 mmol/h/l), and hydrogen yield (0.345 mol H 2 /mol glycerol) were obtained at 35 °C, pH 6.0, and an initial glycerol concentration ( C gly ) of 50 g/l. These conditions are also preferable for producing ethanol, 1,3-propanediol, and 2,3-butanediol with the highest production rate of 6.80 ( C gly = 50 g/l) mmol/h/l, 6.95 ( C gly = 70 g/l) mmol/h/l and 1.17 ( C gly = 50 g/l) mmol/h/l, respectively, and the highest yields of 0.8 ( C gly = 10 g/l), 0.37 ( C gly = 70 g/l), and 0.08 ( C gly = 70 g/l) mol/mol glycerol, respectively. Combining the gaseous (H 2 ) and liquid fuels (alcohols), the highest total energy generation rate was 26.7 kJ/h/l obtained at C gly = 70 g/l, while the best total energy yield was 0.90 kJ/kJ at C gly = 50 g/l. |
| Databáze: | OpenAIRE |
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