| |
DSA switchgrass
|
THF-washed DSA switchgrass
|
Lignin recovered from wash liquid of THF-washed DSA switchgrass
|
|---|
|
Lignin subunits
|
|
S
|
27.9
|
40.2
|
30.7
|
|
G
|
52.5
|
50.6
|
48.3
|
|
H
|
19.6
|
9.2
|
21.0
|
|
S/G ratio
|
0.53
|
0.79
|
0.64
|
|
Hydroxycinnamates
|
|
FA
|
16.8
|
33.7
|
10.6
|
|
pCA
|
16.8
|
59.0
|
11.4
|
|
Interunit linkages
|
|
β-O-4
|
18.4
|
40.2
|
9.7
|
|
β-5
|
6.1
|
8.0
|
4.8
|
|
β–β
|
0.6
|
1.2
|
0.5
|
- Compositions are expressed as a fraction of S + G + H
- S: syringyl unit, G: guaiacyl unit, H: p-hydroxyphenyl unit, FA: ferulate, pCA: p-coumarate, β-O-4: β-aryl ether, β-5: phenylcoumaran, β–β: resinol
