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Table 5 Pressurized liquid extraction (PLE) experimental design

From: Extraction of sugarcane bagasse arabinoxylan, integrated with enzymatic production of xylo-oligosaccharides and separation of cellulose

PLE NaOH (M) Temp Time Ara Gal Glu Xyl Lignin Cellulose Hemicellulose Xylan extraction yield
(% of total xylan)
1 0.05 150 10 1.28 0.26 53.60 23.61 19.31 48.24 22.14 12.82
2 0.05 50 10 1.64 0.54 40.96 22.77 25.93 36.86 21.97 13.49
3 0 150 20 0.73 0.34 45.62 24.33 27.84 41.06 22.36 11.94
4 0.1 150 20 0.92 0.18 60.46 22.92 13.05 54.41 21.14 16.74
5 0 100 10 1.52 0.54 42.28 24.13 28.35 38.06 23.05 9.21
6 0 50 20 1.43 0.51 41.52 23.53 25.82 37.36 22.42 11.69
7 0.1 50 20 1.92 0.51 42.38 23.01 25.18 38.14 22.40 11.78
8 0.1 100 30 1.63 0.39 49.88 24.35 18.44 44.89 23.21 8.59
9 0.05 100 20 1.84 0.46 45.83 25.36 23.68 41.25 24.35 4.08
10 0 100 30 1.46 0.52 42.25 24.19 23.98 38.03 23.04 9.24
11 0.05 50 30 1.59 0.52 42.12 23.30 29.50 37.91 22.38 11.87
12 0.05 100 20 1.78 0.44 45.59 24.52 23.47 41.03 23.97 5.61
13 0.1 100 10 1.77 0.44 48.31 24.45 20.20 43.48 23.47 7.58
14 0.05 150 30 1.15 0.21 53.58 23.68 17.08 48.22 22.04 13.21
15 0.05 100 20 1.89 0.48 45.21 25.44 23.35 40.69 24.48 3.58
  1. Conditions, chemical composition of monosaccharides (%) and polymeric sugar contents in the remaining residue, and extracted xylan yields (with three replicates in experiments are shown. No.9, 12 and 15 with STDV 1.05 in xylan extraction yield). The cellulose and hemicellulose were calculated from the monosaccharide yields as explained in Table 2
  2. Ara arabinose, Gal galactose, Glu glucose, Xyl xylose