Skip to main content

Advertisement

Table 2 Major fermentation products in the batch culture supernatants as a function of sugar substrate

From: Novel monosaccharide fermentation products in Caldicellulosiruptor saccharolyticus identified using NMR spectroscopy

Monosaccharide Acetatea Lactatea Ethanol Ethylene glycol 1,2-propanediolb Glycerola Acetoinc 2,3-butanediolb Hydroxyacetoneb
D-glucose (Glu) 37.2 1.4 4.1 0.0 0.0 3.5 trace 0.4 trace
D-mannose (Man) 25.3 11.3 2.3 0.0d 0.2 2.2 0.1 0.0 1.7
D-arabinose (D-Ara) 32.1 2.2 1.8 23.0a 0.1 3.0 0.0d 0.0 0.0
L-arabinose (L-Ara) 27.0 12.3 6.1 0.0 0.1 1.7 0.1 0.0 3.8
D-xylose (Xyl) 34.6 6.4 2.1 0.0d 0.0 3.3 0.1 0.0 3.5
D-fucose (D-Fuc) 36.6 11.0 3.8 0.9 2.2 9.1 0.0 0.0 0.0
L-fucose (L-Fuc) 33.5 8.0 6.7 0.3 NDe 7.1 0.0 0.0 trace
  1. The unit of the metabolites is mM/OD600.
  2. a The concentrations of major metabolites were determined using HPLC.
  3. b Estimated concentrations were based on manual spectral peak deconvolution, rather than by automated (Chenomx) method.
  4. c Acetoin could be quantified by the Chenomx 7.61 software, not the Chenomx 7.51 version.
  5. d The metabolites could be detected in the continuous cultures, not in the batch cultures.
  6. e Concentration could not be accurately determined.