Ethanol production during D-xylose, L-arabinose and D-ribose fermentation by Bacteroides polypragmatus

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DOIResolve DOI: http://doi.org/10.1007/BF00252587
AuthorSearch for:
TypeArticle
Journal titleApplied Microbiology and Biotechnology
Volume20
Pages111117; # of pages: 7
AbstractThe specific growth rate (μ) during cultivation of Bacteroides polypragmatus in 2.51 batch cultures in 4–5% (w/v) l-arabinose medium was 0.23 h-1 while that in either d-xylose or d-ribose medium was lower (μ=0.19 h-1). Whereas growth on arabinose or xylose occurred after about 6–8 h lag period, growth on ribose commenced after a 30 h lag phase. The maximum substrate utilization rate for arabinose, ribose and xylose in media with an initial substrate concentration of 4–5% (w/v) was 0.77, 0.76, and 0.60 g/l/h respectively. In medium containing a mixture of glucose, arabinose, and xylose, the utilization of all three substrates occurred concurrently. The maximum amount of ethanol produced after 72 h growth in 4–5% (w/v) of arabinose, xylose, and ribose was 9.4, 6.5, and 5.3 g/l, respectively. The matabolic end products (mol/mol substrate) of growth in 4.4% (w/v) xylose medium were 0.73 ethanol, 0.49 acetate, 1.39 CO2, 1.05 H2, and 0.09 butyrate.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada
Peer reviewedNo
NRC numberPATEL1984C
23406
NPARC number9359862
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Record identifier69faa0ff-8397-4afd-b906-d596625ec3fe
Record created2009-07-10
Record modified2016-05-09
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