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Developing a thermophilic hydrogen-producing co-culture for efficient utilization of mixed sugars

Zeidan, Ahmad LU and van Niel, Ed LU (2009) In International Journal of Hydrogen Energy 34(10). p.4524-4528
Abstract
Previous studies on the extreme thermophile Caldicellulosiruptor saccharolyticus revealed that the organism produces high yields of hydrogen on glucose and xylose, the major components of lignocellulosic hydrolysates. Preliminary experiments on mixed sugar substrates, however, indicated that xylose was preferred over glucose. The sugar preference

of some other extreme thermophiles, including Caldicellulosiruptor owensensis, Caldicellulosiruptor kristjanssonii and newly enriched, thermophilic compost sludge microflora, was investigated in an attempt to find complementary organisms to C. saccharolyticus for rapid and efficient utilization of lignocellulosic sugars. The behavior of C. owensensis

and C. kristjanssonii... (More)
Previous studies on the extreme thermophile Caldicellulosiruptor saccharolyticus revealed that the organism produces high yields of hydrogen on glucose and xylose, the major components of lignocellulosic hydrolysates. Preliminary experiments on mixed sugar substrates, however, indicated that xylose was preferred over glucose. The sugar preference

of some other extreme thermophiles, including Caldicellulosiruptor owensensis, Caldicellulosiruptor kristjanssonii and newly enriched, thermophilic compost sludge microflora, was investigated in an attempt to find complementary organisms to C. saccharolyticus for rapid and efficient utilization of lignocellulosic sugars. The behavior of C. owensensis

and C. kristjanssonii appeared to be similar to that of C. saccharolyticus, either in pure cultures or in co-cultures with the latter. Co-culturing C. saccharolyticus with the enriched compost microflora resulted in fast, simultaneous consumption of both glucose and xylose in the medium with a relatively high specific hydrogen production rate, 40 mmol 1/(gCDW).h, and high volumetric productivity, 22.5 mmol/l.h. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
defined co-culture, extreme thermophiles, Caldicellulosiruptor saccharolyticus, Hydrogen production
in
International Journal of Hydrogen Energy
volume
34
issue
10
pages
4524 - 4528
publisher
Elsevier
external identifiers
  • wos:000267173700033
  • scopus:65949093076
ISSN
1879-3487
DOI
10.1016/j.ijhydene.2008.07.092
language
English
LU publication?
yes
id
8d27927e-32f3-4d4b-9d2d-9fd4d16ce1e8 (old id 1299767)
date added to LUP
2009-02-17 16:40:07
date last changed
2017-06-18 03:58:05
@article{8d27927e-32f3-4d4b-9d2d-9fd4d16ce1e8,
  abstract     = {Previous studies on the extreme thermophile Caldicellulosiruptor saccharolyticus revealed that the organism produces high yields of hydrogen on glucose and xylose, the major components of lignocellulosic hydrolysates. Preliminary experiments on mixed sugar substrates, however, indicated that xylose was preferred over glucose. The sugar preference<br/><br>
of some other extreme thermophiles, including Caldicellulosiruptor owensensis, Caldicellulosiruptor kristjanssonii and newly enriched, thermophilic compost sludge microflora, was investigated in an attempt to find complementary organisms to C. saccharolyticus for rapid and efficient utilization of lignocellulosic sugars. The behavior of C. owensensis<br/><br>
and C. kristjanssonii appeared to be similar to that of C. saccharolyticus, either in pure cultures or in co-cultures with the latter. Co-culturing C. saccharolyticus with the enriched compost microflora resulted in fast, simultaneous consumption of both glucose and xylose in the medium with a relatively high specific hydrogen production rate, 40 mmol 1/(gCDW).h, and high volumetric productivity, 22.5 mmol/l.h.},
  author       = {Zeidan, Ahmad and van Niel, Ed},
  issn         = {1879-3487},
  keyword      = {defined co-culture,extreme thermophiles,Caldicellulosiruptor saccharolyticus,Hydrogen production},
  language     = {eng},
  number       = {10},
  pages        = {4524--4528},
  publisher    = {Elsevier},
  series       = {International Journal of Hydrogen Energy},
  title        = {Developing a thermophilic hydrogen-producing co-culture for efficient utilization of mixed sugars},
  url          = {http://dx.doi.org/10.1016/j.ijhydene.2008.07.092},
  volume       = {34},
  year         = {2009},
}