Determination of borneol and other chemical compounds of essential oil of Dryobalanops aromatica exudate from Malaysia
Purpose: To determine borneol and other chemical compounds of essential oil derived from the exudate of Dryobalanops aromatica in Malaysia.
Methods: Exudate was collected from D. aromatica and subjected to fractional distillation to obtain essential oil. Gas chromatography-mass spectrometry (GC-MS) was performed to characterize the composition of the isolated essential oil.
Results: Essential oil (7.58 %) was obtained with the highest yield (3.24 %) in the first 2 h of fractional distillation. Thirty compounds which accounted for 97.56 % of total essential oil composition were identified by GC-MS, and they include sesquiterpenes (46.87 %), monoterpenes (31.05 %), oxygenated monoterpenes (16.76 %) and oxygenated sesquiterpenes (2.13 %). Borneol (0.74 %) was also detected in the essential oil.
Conclusion: Borneol and other terpenoid compounds are present in the essential oil of the exudate of D. aromatica.
Keywords: Exudate, Dryobalanops Aromatica, Fractional distillation, Essential oil, Gas
chromatography-mass spectrometry, Borneol
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