Table 24. Abundance of monolignols and linkages in softwood, hardwood and grass417a.
| Percentage
of total amount/linkage [%] |
||||
|---|---|---|---|---|
| Component | Type | Softwood | Hardwood | Grass |
| Monolignol | H (p-coumaryl alcohol) | <5 | 0–8 | 5–33 |
| G (coniferyl alcohol) | >95 | 25–50 | 33–80 | |
| S (sinapyl alcohol) | 0 | 46–75 | 20–54 | |
| Linkages | β-O-4 (phenylpropane β-aryl ether) | 43–50 | 50–65 | 74–84 |
| α-O-4 (phenylpropane α-aryl ether) | 5–7 | <1 | n.d. | |
| 4-O-5 (diaryl ether) | 4 | 6–7 | n.d. | |
| β-5 (phenylcoumaran) | 9–12 | 3–11 | 5–11 | |
| 5-5 (biphenyl and dibenzodioxocin) | 5–7 | <1 | n.d. | |
| β-1 (1,2-diaryl propane) | 1–9 | 1–7 | n.d. | |
| β-β (resinol) | 2–6 | 3–12 | 1–7 | |
a
Reproduced with permission from ref (417). Copyright 2020 Wiley.