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Table 1 Influence of different concentrations of Fe3+-assisted HAc media on characteristics of hydrolysis residue

From: Catalytic valorization of hardwood for enhanced xylose-hydrolysate recovery and cellulose enzymatic efficiency via synergistic effect of Fe3+ and acetic acid

Fe3+ (wt%) HAc Remaining glucan (%) Remaining lignin (%) Remaining xylan (%) Xylan loss (%) Weight loss (%)
0.04 No 81.3 ± 1.5 94.1 ± 2.5 39.5 ± 2.4 34.9 ± 2.3 31.1 ± 2.4
0.04 Yes 80.3 ± 2.4 68.1 ± 2.6 19.9 ± 1.6 12.5 ± 2.6 41.2 ± 1.8
0.17 Yes 69.9 ± 2.6 61.4 ± 1.9 7.3 ± 1.6 6.5 ± 1.9 51.5 ± 1.6
0.25 Yes 64.5 ± 1.9 57.5 ± 2.0 0 8.9 ± 2.2 55.4 ± 2.5
0.33 Yes 52.6 ± 3.2 44.5 ± 2.9 0 20.2 ± 2.7 63.8 ± 3.5
  1. Except for the conditions explained in the table, others were kept the same. 2.5 g of poplar sawdust was mixed with 25 g of aqueous reaction media. The concentration of HAc solution was 6.5%, and the reaction temperature was maintained at 170 °C