Please use this identifier to cite or link to this item: http://hdl.handle.net/1822/8215

TitleEffect of arabinose concentration on dark fermentation hydrogen production using different mixed cultures
Author(s)Danko, Anthony S.
Abreu, A. A.
Alves, M. M.
KeywordsBiohydrogen
Fermentation
Arabinose
Mixed cultures
Issue dateSep-2008
PublisherInternational Association for Hydrogen Energy
JournalInternational Journal of Hydrogen Energy
Citation"International Journal of Hydrogen Energy. ISSN 0360-3199. 33:17 (Sept. 2008) 4527-4532.
Abstract(s)Dark fermentation hydrogen production from arabinose at concentrations ranging between 0 and 100 g/L was examined in batch assays for three different mixed anaerobic cultures, two suspended sludges (S1, S2) obtained from two different sludge digesters and one granular sludge (G) obtained from a brewery wastewater treatment plant. After elimination of the methanogenic activity by heat treatment, all mixed cultures produced hydrogen, and optimal hydrogen rates and yields were generally observed for concentrations between 10 and 40 g/L of substrate. Higher concentrations of arabinose up to 100 g/L inhibited hydrogen production, although the effect was different from inoculum to inoculum. It was evident that the granular biomass was less affected by increased initial arabinose concentrations when calculating the rate of decrease in hydrogen yields versus arabinose concentrations, compared against the two suspended sludges. The largest amount of soluble microbial product produced for all three inocula was for n-butyrate. Also, valeric acid production was observed in some samples.
TypeArticle
URIhttp://hdl.handle.net/1822/8215
DOI10.1016/j.ijhydene.2008.05.060
ISSN0360-3199
Peer-Reviewedyes
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

Files in This Item:
File Description SizeFormat 
Danko_IJHE.pdf222,73 kBAdobe PDFView/Open

Partilhe no FacebookPartilhe no TwitterPartilhe no DeliciousPartilhe no LinkedInPartilhe no DiggAdicionar ao Google BookmarksPartilhe no MySpacePartilhe no Orkut
Exporte no formato BibTex mendeley Exporte no formato Endnote Adicione ao seu ORCID