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Agarwood from Aquilaria crassna cultivated in Khanh Hoa province was extracted by 5 methods, including hydrodistillation, enzyme-assited, microwave-assisted hydrodistillation, extraction with solvent and supercritical carbon dioxide. The volatile compounds of the products were analyzed by GC-MS. Almost all samples contain some common characteristic components, such as benzylacetone, 10-epi-γ-eudesmol, agarospirol, valerianol, β-eudesmol, α-eudesmol, neopetasane, and dihydrokaranone. However, there were obvious differences in yields, composition, and number of identified components. The application of the more advanced methods for the extraction of agarwood resulted in saving of time and energy, and some improvement of product yield. These methods also lead to unconventional products with characteristic chemical compositions, what requires further investigations.

COMPARATIVE STUDY ON VOLATILE COMPOUNDS OF AGARWOOD FROM KHANH HOA PROVINCE EXTRACTED BY DIFFERENT METHODS