Table 3 Percentages of pyrolysis products from termite-chewed softwood and undigested control at 340°C.
From: Advanced biorefinery in lower termite-effect of combined pretreatment during the chewing process
| Â | Name | Molecular formula | Molecular weight | Retention time (min) | *Control (%) | Chewed softwood (%) |
|---|---|---|---|---|---|---|
1 | Furfural | C5H4O2 | 96 | 5.666 | 0.37 | 0.07 |
2 | 2-methyl-cyclopentanone | C6H10O | 98 | 7.628 | 0.04 | 0.01 |
3 | 2-furanmethanol | C5H6O2 | 98 | 12.257 | 0.03 | NA |
4 | 2-vinyl-9-[3-deoxy-β-d-ribofuranosyl]hypoxanthine | C12H14N4O4 | 278 | 14.013 | 0.10 | 0.10 |
5 | 1-(2-hydroxy-5-methylphenyl)-ethanone | C9H10O2 | 150 | 16.968 | 0.24 | 2.25 |
6 | 2-methoxy-5-(1-propenyl)-,(E)-phenol | C10H12O2 | 164 | 17.917 | 0.20 | 0.23 |
7 | Vanillin | C8H8O3 | 152 | 18.866 | NA | 4.09 |
8 | Vanillin lactoside | C20H28O13 | 476 | 19.164 | 0.23 | NA |
9 | 2-methoxy-4-(1-propenyl)-(E)-phenol | C10H12O2 | 164 | 19.858 | 1.06 | 4.12 |
10 | 2-methoxy-4-propyl-phenol | C10H14O2 | 166 | 20.126 | 0.18 | 1.83 |
11 | 6-methoxy-3-methylbenzofuran | C10H10O2 | 162 | 20.45 | 0.33 | 4.26 |
12 | Levoglucosan | C6H10O5 | 162 | 20.687 | NA | 2.08 |
13 | 1-(4-hydroxy-3-methoxyphenyl)-2-propanone | C10H12O3 | 180 | 21.636 | NA | 0.61 |
14 | 2-methoxy-α,5-dimethyl-benzeneacetaldehyde | C11H14O2 | 178 | 22.153 | NA | 0.93 |
15 | 3-hydroxy-4-methoxy-benzaldehyde | C8H8O3 | 152 | 22.732 | 0.20 | 1.27 |
16 | 4-hydroxy-3-methoxy-benzeneacetic acid | C9H10O4 | 182 | 23.866 | 0.30 | 1.18 |
17 | 4-((1E)-3-hydroxy-1-propenyl)-2-methoxyphenol | C10H12O3 | 180 | 24.319 | NA | 0.12 |
18 | Methoxyphenyl)-5-(3-hydroxy-1-propenyl)-7- methoxy-2,3-dihydro-2-(4-hydroxy-3-3-benzofuranmethanol | C20H22O6 | 358 | 24.487 | NA | 0.20 |
19 | 3,3',5,5'-tetramethyl-2,2'-bifuryl | C12H14O2 | 190 | 25.251 | NA | 0.27 |
20 | Benzeneacetic acid, 4-hydroxy-3-methoxy-, methyl ester | C10H12O4 | 196 | 25.333 | NA | 0.29 |
21 | 4-hydroxy-2-methoxycinnamaldehyde | C10H10O3 | 178 | 25.436 | 1.24 | 7.14 |