Characterisation of Aquilaria hirta based on morphology evaluation and volatile chemical compound

Lee S. Y., . and Che Mohd Aizal C. M., . and Mohamed R., . and Mohd Syafik M. H., . and Siti Hajar N. S., . and Saiful Nizam T., . Characterisation of Aquilaria hirta based on morphology evaluation and volatile chemical compound. pp. 289-295. ISSN 0128-1283

Aquilaria hirta is one of the agarwood tree species in Malaysia that produces a unique resinous wood and essential oil used in perfumery medicinal cosmetic and religious ceremonies. Currently it has been listed as vulnerable (VU) and threatenad species in the IUCN Red List. This study aims to characterise the morphology of A. hirta via scanning electron microscopic analysis and to identify the volatile chemical compounds of the wood and its essential oil using gas chromatography-flame ionisation detector and gas chromatography-mass spectrometry analyses. Aquilaria hirta was identified by the presence of hirsute on the abaxial side of leaves and midrib. The field emission scanning electron microscope analysis showed plant vessel pits can be seen in the healthy wood images compared with resinous wood images due to presence of resin and microorganisms. A total of 19 compounds were identified in resinous A. hirta wood consisting of 5.97 sesquiterpenes and 20.32 oxygenated sesquiterpenes. The major compounds are kessane -cadinene -caryophyllene -caryophylene and caryophyllene oxide. There were 35 compounds found in A. hirta oil comprising 0.45 monoterpenes 23.51 sesquiterpenes and 19.53 oxygenated sesquiterpenes. Major compounds detected were -cadinene nor-ketoagarofuran allo-aromadendrene -gurjunene and -gurjunene. This study provides a reference for the identification of A. hirta species based on morphology evaluation and volatile chemical compounds profile of the essential oil and wood.

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Abstract

Aquilaria hirta is one of the agarwood tree species in Malaysia that produces a unique resinous wood and essential oil used in perfumery medicinal cosmetic and religious ceremonies. Currently it has been listed as vulnerable (VU) and threatenad species in the IUCN Red List. This study aims to characterise the morphology of A. hirta via scanning electron microscopic analysis and to identify the volatile chemical compounds of the wood and its essential oil using gas chromatography-flame ionisation detector and gas chromatography-mass spectrometry analyses. Aquilaria hirta was identified by the presence of hirsute on the abaxial side of leaves and midrib. The field emission scanning electron microscope analysis showed plant vessel pits can be seen in the healthy wood images compared with resinous wood images due to presence of resin and microorganisms. A total of 19 compounds were identified in resinous A. hirta wood consisting of 5.97 sesquiterpenes and 20.32 oxygenated sesquiterpenes. The major compounds are kessane -cadinene -caryophyllene -caryophylene and caryophyllene oxide. There were 35 compounds found in A. hirta oil comprising 0.45 monoterpenes 23.51 sesquiterpenes and 19.53 oxygenated sesquiterpenes. Major compounds detected were -cadinene nor-ketoagarofuran allo-aromadendrene -gurjunene and -gurjunene. This study provides a reference for the identification of A. hirta species based on morphology evaluation and volatile chemical compounds profile of the essential oil and wood.

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Item Type:	Article
AGROVOC Term:	Plant morphology
AGROVOC Term:	Volatile compounds
AGROVOC Term:	Chemical compounds
AGROVOC Term:	Species
AGROVOC Term:	Electron microscopy
AGROVOC Term:	analysis
AGROVOC Term:	Sesquiterpenoids
AGROVOC Term:	Monoterpenes
AGROVOC Term:	Sampling
AGROVOC Term:	Gas chromatography
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:54
URI:	http://webagris.upm.edu.my/id/eprint/9097

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