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Table 2 Acetoin production from APC by strain IPE5-4-UD-4 through different processes

From: Conversion of cellulose and hemicellulose of biomass simultaneously to acetoin by thermophilic simultaneous saccharification and fermentation

Fermentation process Fermentation time (h) Acetoin
Maximum concentration (g L−1) Yielda (g g−1) Productivityb (g L−1 h−1) CAcetoin/C cAPC
Shake flask SSF 72 12.55 ± 0.28 0.25 0.17 0.46 ± 0.01
Shake flask SHF 72 10.89 ± 0.34 0.22 0.15 0.42 ± 0.01
Fermenter SSF 60 22.76 ± 1.16 0.46 0.38 0.72 ± 0.04
  1. aAcetoin yield was calculated by g acetoin/g substrate
  2. bAcetoin productivity was calculated by maximum concentration of acetoin (g L−1)/fermentation time (h)
  3. cCAcetoin meant the molar concentration of carbon in acetoin, and CAPC meant the molar concentration of carbon in APC