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SHORT NOTES: A CHEMOTAXONOMIC STUDY OF THE RESINS FROM THREE DIPTEROCARP SPECIES (Shorea macrophylla, Shorea pinanga, and Shorea hopeifolia)
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A chemotaxonomic study on the resins of Shorea macrophylla, Shorea pinanga, and Shorea hopeifolia was conducted. The dichloromethane extracts were separated into neutral and acidic fractions and then analyzed using GC-MS. The neutral fraction analysis revealed that spathulenol, caryophyllene oxide, aromadendrene oxide, and isoaromadendrene epoxide were the major constituents in all three species. Furthermore, the main compound in the neutral fraction of Shorea hopeifolia was isocaryophyllene which was undetected in the other two species. The major constituent of the acidic fraction of the three species was hexadecanoic acid, while pentadecanoic acid was the major constituent in the acidic fraction of Shorea pinanga and Shorea hopeifolia. Therefore, the presence of sesquiterpenes as well as fatty acids in S. macrophylla, S. pinanga, and S. hopeifolia was discovered to be a marker for identifying the genus Shorea.
Pulp and Paper Research Institute
Title: SHORT NOTES: A CHEMOTAXONOMIC STUDY OF THE RESINS FROM THREE DIPTEROCARP SPECIES (Shorea macrophylla, Shorea pinanga, and Shorea hopeifolia)
Description:
A chemotaxonomic study on the resins of Shorea macrophylla, Shorea pinanga, and Shorea hopeifolia was conducted.
The dichloromethane extracts were separated into neutral and acidic fractions and then analyzed using GC-MS.
The neutral fraction analysis revealed that spathulenol, caryophyllene oxide, aromadendrene oxide, and isoaromadendrene epoxide were the major constituents in all three species.
Furthermore, the main compound in the neutral fraction of Shorea hopeifolia was isocaryophyllene which was undetected in the other two species.
The major constituent of the acidic fraction of the three species was hexadecanoic acid, while pentadecanoic acid was the major constituent in the acidic fraction of Shorea pinanga and Shorea hopeifolia.
Therefore, the presence of sesquiterpenes as well as fatty acids in S.
macrophylla, S.
pinanga, and S.
hopeifolia was discovered to be a marker for identifying the genus Shorea.
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