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Table 6 Chemical composition (%) of purified extracted xylans

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

Picture of xylan fraction and sample abbreviation Ara Gal Glu Xyl Man UA Xyl/Ara Xyl/UA
2 M-C1 6.72 ± 0.08 0.27 ± 0.01 7.8 ± 0.44 75.0 ± 1.21 0.43 ± 0.05 3.3 11.18 ± 0.31 22.74 ± 0.22
2 M-C2 5.64 ± 0.10 0.31 ± 0.05 5.97 ± 0.51 67.4 ± 1.27 nd 2.46 11.94 ± 0.02 27.38 ± 1.46
2 M-C3 4.64 ± 0.09 0.11 ± 0.04 3.97 ± 0.12 65.1 ± 0.54 nd 1.3 14.05 ± 0.16 50.1 ± 2.05
1 M-C1 7.93 ± 0.13 0.41 ± 0.03 12.27 ± 0.33 73.0 ± 1.0 0.56 ± 0.03 2.48 9.20 ± 0.02 29.42 ± 0.36
1 M-C2 6.83 ± 0.21 0.29 ± 0.0 6.7 ± 0.21 76.4 ± 0.81 nd 2.68 11.19 ± 0.22 28.5 ± 0.60
1 M-C3 5.32 ± 0.11 0.21 ± 0.01 4.56 ± 0.19 72.2 ± 1.12 nd 4.05 13.57 ± 0.08 17.82 ± 0.04
0.5 M-60 min 7.48 ± 0.12 0.6 ± 0.03 21.88 ± 0.67 48.5 ± 1.12 0.28 ± 0.01 2.76 6.49 ± 0.05 17.58 ± 0.04
PLE (No.4) 6.63 ± 0.08 0.49 ± 0.04 13.14 ± 0.15 58.1 ± 0.76 0.51 ± 0.04 3.61 8.76 ± 0.0 16.09 ± 0.23
Untreated bagasse 2.24 ± 0.07 0.72 ± 0.0 36.58 ± 0.13 ara> 25.7 ± 0.79 0.16 ± 0.05 1.87 11.18 ± 0.31 13.75 ± 0.51
  1. 2 M-C1: 1st cycle extraction in 2 M NaOH; 2 M-C2: 2nd cycle extraction in 2 M NaOH; 2 M-C3: 3rd cycle extraction in 2 M NaOH; 1 M-C1: 1st cycle extraction in 1 M NaOH, 1 M-C2: 2nd cycle extraction in 1 M NaOH; 1 M-C3: 3rd cycle extraction in 1 M NaOH, 0.5 M-60 min: 60 min extraction in 0.5 M NaOH; PLE(No4): pressurized liquid extraction using 0.1 M NaOH, at 150 °C, 20 min
  2. Ara arabinose, Gal galactose, Glu glucose, Man mannose, Xyl xylose, UA uronic acids, nd not detected