Table 1.
Composition of cell-wall dehydrogenation polymers (CWDHPs) and their alkali-insoluble residues
|
CWDHP |
Alkaline pretreatment (°C) |
Concentration in CWDHP or alkali-insoluble residues (%) |
||||
|---|---|---|---|---|---|---|
| Lignin | Glucose | Xylose | Arabinose | Galactose | ||
| Control |
None |
20.2aa |
29.6 g |
x11.5b |
16.2b |
7.3bc |
| |
70 |
16.2b |
32.0f |
11.4b |
16.5b |
8.0a |
| |
100 |
17.6b |
34.0e |
11.4 b |
16.5b |
7.1d |
| |
130 |
16.9b |
35.9d |
12.9a |
18.3a |
5.6e |
| EGCG |
None |
18.4ab |
30.4 fg |
11.5b |
16.0b |
7.4b |
| |
70 |
8.9c |
40.9c |
11.6b |
14.9 c |
7.1 cd |
| |
100 |
6.5d |
43.5b |
9.9c |
12.3d |
7.2 cd |
| |
130 |
5.5d |
48.8a |
9.7c |
10.8e |
4.4f |
|
Analysis of variance |
|
|
|
|
|
|
| CWDHP |
† |
*** |
*** |
*** |
*** |
|
| Pretreatment |
*** |
*** |
** |
** |
*** |
|
| CWDHP X Pretreatment Interaction | *** | *** | *** | *** | *** | |
The CWDHP were formed with monolignols (control) or with monolignols plus epigallocatechin gallate (EGCG) and pretreated with 0.075 M sodium hydroxide (15% w/w loading) at various temperatures.
a Means within columns with unlike letters differ (P < 0.05).
† P < 0.1; * P < 0.05; ** P < 0.01, *** P < 0.001.