Thermophilic biohydrogen production from energy plants by Caldicellulosiruptor saccharolyticus and comparison with related studies

Galina Ivanova, G. Rákhely, K. Kovács

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104 Citations (Scopus)

Abstract

Air-dried samples of sweet sorghum, sugarcane bagasse, wheat straw, maize leaves and silphium were utilized without chemical pretreatment as sole energy and carbon sources for H2 production by the extreme thermophilic bacterium Caldicellulosiruptor saccharolyticus. The specific H2 production rates and yields were determined in the batch fermentation process. The best substrate was wheat straw, with H2 production capacity of 44.7 L H2 (kg dry biomass)-1 and H2 yield of 3.8 mol H2 (mol glucose)-1. Enzymatically pretreated maize leaves exhibited H2 production of 38 L H2 (kg dry biomass)-1. Slightly less H2 was obtained from homogenized whole plants of sweet sorghum. Sweet sorghum juice was an excellent H2 source. Silphium trifoliatum was also fermented though with a moderate production. The results showed that drying is a good storage method and raw plant biomass can be utilized efficiently for thermophilic H2 production. The data were critically compared with recently published observations.

Original languageEnglish
Pages (from-to)3659-3670
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume34
Issue number9
DOIs
Publication statusPublished - May 2009

Fingerprint

sorghum
biomass
Biomass
wheat
Straw
leaves
energy
juices
Bagasse
fermentation
energy sources
glucose
pretreatment
Fermentation
bacteria
drying
Glucose
Bacteria
Drying
Carbon

Keywords

  • Bagasse
  • Caldicellulosiruptor saccharolyticus
  • Energy plants
  • Extreme thermophile
  • Hydrogen production
  • Maize biomass
  • Silphium
  • Sweet sorghum
  • Wheat straw

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

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title = "Thermophilic biohydrogen production from energy plants by Caldicellulosiruptor saccharolyticus and comparison with related studies",
abstract = "Air-dried samples of sweet sorghum, sugarcane bagasse, wheat straw, maize leaves and silphium were utilized without chemical pretreatment as sole energy and carbon sources for H2 production by the extreme thermophilic bacterium Caldicellulosiruptor saccharolyticus. The specific H2 production rates and yields were determined in the batch fermentation process. The best substrate was wheat straw, with H2 production capacity of 44.7 L H2 (kg dry biomass)-1 and H2 yield of 3.8 mol H2 (mol glucose)-1. Enzymatically pretreated maize leaves exhibited H2 production of 38 L H2 (kg dry biomass)-1. Slightly less H2 was obtained from homogenized whole plants of sweet sorghum. Sweet sorghum juice was an excellent H2 source. Silphium trifoliatum was also fermented though with a moderate production. The results showed that drying is a good storage method and raw plant biomass can be utilized efficiently for thermophilic H2 production. The data were critically compared with recently published observations.",
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author = "Galina Ivanova and G. R{\'a}khely and K. Kov{\'a}cs",
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