Table 4. GC-MS analysis of untoasted RRG wood ethanolic extract

Peak No. Retention time (min) Area Compound name Composition (%)
1 3.14 1682528.1 Furfural 39.18
2 4.399 242208 2-Furancarboxaldehyde, 5-methyl- 5.64
3 6.608 58118.16 Terpinen-4-ol 1.35
4 6.751 191790.36 α-Terpineol 4.47
5 8.622 111124.16 Syringol 2.59
6 8.696 1126221.2 Eugenol 26.22
7 9.297 161653.03 Benzaldehyde, 3-hydroxy-4-methoxy- 3.76
8 10.871 76488.8 2(4H)-Benzofuranone, 5,6,7,7a-tetrahydro-4,4,7a-trimethyl-, (R)- 1.78
9 12.267 139991.54 Syringylaldehyde 3.26
10 17.108 138164.61 Linoleic acid ethyl ester 3.22
11 17.148 366325.91 Ethyl oleate 8.53
Total 100
GC-MS: gas chromatography-mass spectrometry, RRG: river red gum.