Skip to main content

Advertisement

Table 9 Comparisons of the two detoxification methods for pretreated CSa

From: Biodetoxification of toxins generated from lignocellulose pretreatment using a newly isolated fungus, Amorphotheca resinae ZN1, and the consequent ethanol fermentation

  Glucose Xylose Acetic acid Levulinic acid HMF Furfural DM loss Ethanol yield Water usage
  (mg/g DM) (%) (%, wt/wt) (kg/kg DM)
Original 10.7 ± 0.2 52.6 ± 2.1 12.3 ± 0.1 2.2 ± 0.2 4.1 ± 0.3 6.2 ± 0.5 0.0 10.3 0.0
Biodetoxified 4.0 ± 0.4 22.1 ± 0.8 0.1 ± 0.1 0.6 ± 0.2 3.4 ± 0.2 0.0 ± 0.1 0.0 56.5 0.0
water washing          
L/S ratio 1:1 3.1 ± 0.2 15.3 ± 1.3 3.3 ± 0.0 0.6 ± 0.2 0.8 ± 0.2 1.1 ± 0.1 18.5 ± 0.8 47.4 2.0 ± 0.3
L/S ratio 3:1 2.0 ± 0.0 7.6 ± 0.5 2.1 ± 0.2 0.5 ± 0.3 0.7 ± 0.1 0.9 ± 0.2 21.3 ± 0.6 49.3 6.0 ± 0.6
L/S ratio 5:1 1.2 ± 0.1 6.1 ± 0.0 1.4 ± 0.3 0.2 ± 0.1 0.4 ± 0.1 0.8 ± 0.2 27.2 ± 1.2 45.9 10.0 ± 1.0
  1. aL/S ratio indicates the freshwater usage vs. the weight of the pretreated CS (wt/wt) during the washing step. Conditions for biodetoxification: 25°C for 4 days in a static incubator. Conditions for SSF: 30% (wt/wt) solid loading, 15.0 FPU/g DM, pH 5.0, in the helical stirring bioreactor at 150 rpm. FPU, unit of filter paper cellulase.