|
Materials
|
Solid recovery (%)
|
Released pCA (%)
|
Composition
|
|---|
|
Glucan (%)
|
Xylan (%)
|
Arabinan (%)
|
Lignin (%)
|
|---|
|
NaOH–ethanol
|
|
Pith
|
59.48 ± 0.54
|
94.07 ± 1.34
|
56.15 ± 0.72
|
23.90 ± 0.27
|
2.95 ± 0.14
|
5.40 ± 0.16
|
|
Rind
|
75.85 ± 0.71
|
97.24 ± 2.11
|
50.82 ± 0.17
|
20.21 ± 0.93
|
2.45 ± 0.07
|
10.81 ± 0.09
|
|
Whole stem
|
68.52 ± 0.59
|
95.05 ± 1.57
|
51.98 ± 1.04
|
21.96 ± 0.12
|
2.73 ± 0.20
|
6.32 ± 0.21
|
|
NaOH
|
|
Pith
|
55.74 ± 1.16
|
86.97 ± 0.79
|
54.10 ± 0.35
|
17.26 ± 1.12
|
2.64 ± 0.23
|
7.49 ± 1.06
|
|
Rind
|
73.42 ± 0.78
|
89.72 ± 1.96
|
48.63 ± 1.86
|
18.14 ± 0.89
|
2.12 ± 0.11
|
13.39 ± 0.95
|
|
Whole stem
|
64.34 ± 0.94
|
87.69 ± 1.63
|
51.60 ± 1.03
|
17.21 ± 0.67
|
2.34 ± 0.18
|
9.67 ± 0.64
|
- NaOH–ethanol pretreatment was performed under the following conditions: 1.63% NaOH, 70% ethanol, 66 °C, 3.18 h; 1.90% NaOH, 70% ethanol, 69.8 °C, 1.00 h and 1.46% NaOH, 70% ethanol, 70 °C, 2.19 h for the pith, rind and whole stem, respectively. NaOH pretreatment was performed under the same conditions, except that 70% ethanol was not included
