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Table 3 Inhibitor conversion and sugar consumption by A. resinae ZN1 on solid corn stover after acid pretreatment

From: Heterozygous diploid structure of Amorphotheca resinae ZN1 contributes efficient biodetoxification on solid pretreated corn stover

  Furfural HMF Acetic acid HBA Vanillin Syringaldehyde
Inhibitor concentration (mg/g DM) 5.52 ± 0.22 2.26 ± 0.04 15.91 ± 2.05 0.19 ± 0.02 2.41 ± 0.09 1.12 ± 0.36
Complete conversion time (h) 36 36 36 56a 72a 72a
Glucose consumption (mg/g DM) 5.49 ± 1.09 5.49 ± 1.09 5.49 ± 1.09 9.64 ± 0.20 10.08 ± 0.44 10.08 ± 0.44
Xylose consumption (mg/g DM) 3.77 ± 1.75 3.77 ± 1.75 3.77 ± 1.75 18.97 ± 1.09 25.92 ± 6.92 25.92 ± 6.92
Total sugar loss (%) 1.56 ± 0.48 1.56 ± 0.48 1.56 ± 0.48 4.83% ± 0.15 6.08% ± 1.24 6.08% ± 1.24
  1. Condition: 5-L bioreactor, 28 °C, pH 5.5, aeration rate of 1.33 vvm (defined as the air volumetric flowrate in liter per minute to the corn stover feedstock volume in liter). Total sugar loss (%) was calculated for the sum of consumed glucose and xylose divided by the total glucose and xylose contained in the solid pretreated corn stover. Six model inhibitors without formic acid were analyzed due to the very less formic acid on the real solid feedstocks after acid pretreatment. All experiments were carried out in duplicate. Error was calculated as standard deviation
  2. aThe conversion rate about 90% for the three phenolic aldehydes achieved at this time point