Purpose: To determine borneol and other chemical compounds of essential oil derived from the
exudate of
Dryobalanops aromatica
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 
