Table 2.
Chemical composition (% of all chromatogram peak areas) of the lipophilic extractives of young phloem of Pinus pinaster and Pinus pinea from three sites in Portugal (mean and standard deviation of three site per species).
| Chemical family/Compound |
Pinus pinaster |
Pinus pinea |
||||||
|---|---|---|---|---|---|---|---|---|
| Site 1 | Site 2 | Site 3 | Average | Site 1 | Site 2 | Site 3 | Average | |
| Terpenic compounds | 36.1 | 44.7 | 43.1 | 41.3 ± 4.6 | 52.4 | 47.8 | 52.4 | 50.9 ± 2.7 |
| Pimarane-type resin acids | 8.2 | 8.7 | 11.9 | 9.6 ± 2.0 | 11.7 | 14.2 | 12.2 | 12.7 ± 1.3 |
| Pimaric acid | 6.1 | 7.0 | 10.2 | 7.8 ± 2.2 | 7.1 | 7.3 | 7.9 | 7.4 ± 0.4 |
| Isopimaric acid | 2.15 | 1.63 | 1.73 | 1.8 ± 0.3 | 4.60 | 6.89 | 4.2 | 5.2 ± 1.5 |
| Abietane-type resin acids | 27.9 | 36.4 | 31.2 | 31.8 ± 4.3 | 40.7 | 33.7 | 40.2 | 38.2 ± 3.9 |
| Di(dehydroabietc acid) | 1.5 | 3.9 | 2.4 | 2.6 ± 1.2 | nd | nd | nd | nd |
| Dehydroabietic acid | 11.4 | 6.9 | 11.4 | 9.9 ± 2.6 | 23.9 | 17.7 | 23.2 | 21.6 ± 3.4 |
| Abietic acid | 9.1 | 14.4 | 11.7 | 11.7 ± 2.7 | 0.9 | 10.0 | 12.2 | 10.4 ± 1.6 |
| 15-Hydroxy-dehydroabietic acid | 2.5 | 1.5 | 2.2 | 2.1 ± 0.5 | n d | nd | nd | nd |
| 7-Hydroxy-dehydroabietic acid | 3.4 | 2.3 | 3.7 | 3.1 ± 0.7 | 7.5 | 7.9 | 7.8 | 7.7 ± 0.2 |
| Fatty acids | 22.5 | 18.1 | 18.8 | 19.8 ± 2.4 | 14.2 | 20.7 | 13.9 | 16.3 ± 3.8 |
| Saturated fatty acids | 15.0 | 13.1 | 13.1 | 13.7 ± 1.1 | 8.9 | 13.2 | 8.3 | 10.1 ± 2.7 |
| Hexadecanoic acid (palmitic acid C16:0) | 3.0 | 0.3 | 3.4 | 2.2 ± 1.7 | 0.9 | nd | 0.2 | 0.6 ± 0.5 |
| Octadecanoic acid (stearic acid C18:0) | 1.0 | 0.4 | 0.6 | 0.7 ± 0.3 | 0.8 | 1.6 | 1.0 | 1.1 ± 0.4 |
| Eicosanoic acid (arachidic acid C20:0) | 6.1 | 8.9 | 5.6 | 6.9 ± 1.8 | 1.8 | 1.2 | 1.2 | 1.4 ± 0.3 |
| Docosanoic acid (behenic acid C22:0) | 2.0 | 1.4 | 1.4 | 1.6 ± 0.3 | 2.7 | 4.4 | 2.5 | 3.2 ± 1.0 |
| Tricosanoic acid (tricosylic acid C23:0) | 0.9 | 0.5 | 0.9 | 0.8 ± 0.2 | 0.7 | 0.5 | 0.7 | 0.6 ± 0.1 |
| Tetracosanoic acid (lignoceric acid C24:0) | 2.1 | 1.7 | 1.2 | 1.7 ± 0.5 | 2.11 | 5.6 | 2.7 | 3.5 ± 1.9 |
| Unsaturated fatty acids | 6.2 | 4.6 | 4.5 | 5.1 ± 1.0 | 4.5 | 6.8 | 5.1 | 5.5 ± 1.2 |
| 9-Octadecadienoic acid (oleic acid C18:1) | 4.0 | 2.4 | 2.3 | 2.9 ± 1.0 | 2.9 | 5.5 | 4.2 | 4.2 ± 1.3 |
| 9.12.15-Octadecatrienoic acid (linolenic acid C18:3) | 1.2 | 1.2 | 1.2 | 1.2 ± 0.0 | nd | nd | nd | nd |
| 10.16-Dihydroxyhexadecanoic acid (C16:2) | 1.0 | 1.0 | 1.0 | 1.0 ± 0.0 | 1.6 | 1.3 | 0.9 | 1.3 ± 0.4 |
| Methyl 16-hydroxyhexadecanoate | 0.6 | 0.5 | 0.5 | 0.5 ± 0.1 | 0.8 | 0.7 | 0.5 | 0.7 ± 0.2 |
| Methyl 18-hydroxy-9-octadecenoate | 0.9 | nd | 0.81 | 0.9 ± 0.1 | nd | nd | nd | nd |
| Flavonoids | 0.2 | nd | nd | 0.1 ± 0.1 | 3.4 | 0.1 | 1.0 | 1.5 ± 1.7 |
| Catechine (2R-cis) | 0.2 | nd | nd | 0.2 ± 0.0 | 3.4 | 0.1 | 1.0 | 1.5 ± 1.7 |
| Alkanes | 0.3 | nd | 0.3 | 0.2 ± 0.2 | nd | nd | nd | nd |
| Hexacosane | 0.3 | nd | 0.3 | 0.3 ± 0.0 | nd | nd | nd | nd |
| Sterols | 0.9 | 0.4 | 0.7 | 0.7 ± 0.3 | 0.8 | 0.7 | 1.0 | 0.8 ± 0.2 |
| β-Sitosterol | 0.8 | 0.4 | 0.6 | 0.6 ± 0.2 | 0.8 | 0.7 | 1.0 | 0.8 ± 0.2 |
| Stigmast-5-ene | 0.1 | nd | 0.09 | 0.1 ± 0.0 | nd | nd | nd | nd |
| Lignans | 3.0 | 0.7 | 2.2 | 2.0 ± 1.2 | nd | nd | nd | nd |
| Pinoresinol | 3.0 | 0.7 | 2.2 | 2.0 ± 1.2 | nd | nd | nd | nd |
nd - not detected.