Abstract
The composition and antimicrobial activity of the essential oils which were obtained from agarwood originated from Aquilaria sinensis (Lour.) Gilg stimulated by the chemical method (S1) were characterized, taking wild agarwood (S2) and healthy trees (S3) respectively as the positive and negative controls. The chemical composition of S1 was investigated by gas chromatography-mass spectrometry (GC-MS). The essential oil of S1 showed a similar composition to that of S2, being rich in sesquiterpenes and aromatic constituents. However, the essential oil of S3 was abundant in fatty acids and alkanes. Essential oils of S1 and S2 had better inhibition activities towards Bacillus subtilis and Staphyloccus aureus, compared with essential oil of S3. Escherichia coli was not sensitive to any of them.
Highlights
Agarwood, a highly valuable resinous and fragrant heartwood, is used as incense for religious ceremonies, perfumes in the Arab world, ornamental materials, and medicinal components in oriental medicine [1,2]
Dai Haofu et al evaluated the quality of three Chinese agarwood (A. sinensis) samples produced by the methods of nail insetting, holing and trunk breaking, respectively, through gas chromatography-mass spectrometry (GC-MS) [14], but there are no reports about agarwood formed by chemical methods
In order to test the quality of the agarwood originated from A. sinensis stimulated by the chemical method (S1), its chemical composition and relative amount of essential oils were measured by GC-MS, taking the wild agarwood (S2) and healthy trees (S3) as controls
Summary
A highly valuable resinous and fragrant heartwood, is used as incense for religious ceremonies, perfumes in the Arab world, ornamental materials, and medicinal components in oriental medicine [1,2]. It often takes several years for a wild damaged Aquilaria species plant to form agarwood [3]. In order to improve the planting value of Aquilaria trees, great efforts have been made to induce healthy trees to produce these sesquiterpenes and 2-(2phenylethyl) chromone derivatives, forming argarwood [5,10]. Dai Haofu et al evaluated the quality of three Chinese agarwood (A. sinensis) samples produced by the methods of nail insetting, holing and trunk breaking, respectively, through GC-MS [14], but there are no reports about agarwood formed by chemical methods. In order to test the quality of the agarwood originated from A. sinensis stimulated by the chemical method (S1), its chemical composition and relative amount of essential oils were measured by GC-MS, taking the wild agarwood (S2) and healthy trees (S3) as controls. The antimicrobial activities of essential oils of the agarwood originating from A. sinensis were determined
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