Compounds Identification in Agar Wood Soaking Water by Using GC-MS

Jok, Veronica Alexander; Zainudin, Mohamad Arif Fadhli; Radzi, Nurhaslina Che; Hamid, Ku Halim Ku

doi:10.18178/ijcea.2016.7.5.602

Cited by 1 publication

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References 9 publications

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“…As the soaking time increased, the acidity of the medium increases too as to corrode the cell wall of the agarwood chips, but over time, it may cause excessive breakage and releasing the chemical compounds to the soaking medium [23]. Further research by Jok et al [24] confirmed that longer soaking time might increase the yield but over soaking will somehow give a lower yield which can result in the wastage of the essential compounds of the agarwood chips into the soaking water. Figure 2 also shows that EP3 has the highest yield of 0.125 %, which is close to oil yield obtained from sample S14, which is 0.13 %.…”

Section: A Effect Of Pre-treatment On Agarwood Oil Yieldmentioning

confidence: 99%

The Effect of Enzymatic Pre-Treatment in Agarwood Oil Extraction

Rahim¹,

Kadri²,

Harun³

2019

Int. J. Adv. Sci. Eng. Inf. Technol.

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Agarwood oil was extracted from a pre-treated agarwood chip soaked in a specific enzyme concentration of 1 %, 3 % and 5 % respectively. The effect of soaking time was also investigated by applying soaking period in the range of 3 to 14 days. Hydrodistillation was carried out using the Clevenger-type apparatus to obtain the essential oil of agarwood chips. Subsequently the quality of the oil and the identification of its oil compounds were analyzed using GC-MS. The morphology of agarwood chips prior to hydrodistillation was characterized using scanning electron microscope (SEM). The SEM results of enzymatic pre-treated sample showed an obvious change in the cell morphology as compared to the sample with standard soaking of 6 days. The highest yield of oil with the amount of 0.125 % is produced from the sample pre-treated with 3 % enzyme concentration as compared to 0.065 % of oil yield from the non-pre-treated sample employing similar soaking days. The GC-MS analysis revealed a total of 335 compounds from all samples of agarwood oil and similar compounds were found in the standard soaking and enzymatic pre-treated samples. Caryophyllene, Gurjunene, and Alloaromadendrene that contributes to the unique odour of agarwood oil are found mostly in all samples. Thus, the enzymatic pre-treatment indicates a comparable yield and oil quality and it is achievable even with a reduced soaking time of 6 days as compared to standard 14 days.

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Section: A Effect Of Pre-treatment On Agarwood Oil Yieldmentioning

confidence: 99%