Classification of the Quality of Agarwood Oils from Malaysia using Z-Score Technique

• Main Authors: Nurlaila, Ismail, Mohd Hezri Fazalul, Rahiman, Mohd Nasir, Taib, Nor Azah, Mohd Ali, Mailina, Jamil, Saiful Nizam, Tajuddin
• Format: Conference or Workshop Item
• Language: English
• Published: 2013
• Subjects: TP Chemical technology
• Online Access: http://umpir.ump.edu.my/id/eprint/7481/1/Classification_of_the_Quality_of_Agarwood_Oils_from_Malaysia_using_Z-Score_Technique.pdf; http://umpir.ump.edu.my/id/eprint/7481/; http://dx.doi.org/10.1109/ICSEngT.2013.6650147

This paper presents classification of the quality of agarwood oils from Malaysia using Z-score technique. Six agarwood oil samples named as MU, MUS, MN, MNS, R5 and HD are analyzed by GC-MS to examine their chemical profiles. The extraction showed that at least forty three volatile compounds are found. The Z-score technique is proposed to identify the significant chemical compounds of the agarwood oils. It is found that six chemical compounds are recognized. They are β-agarofuran, α-agarofuran, 10-epi-□-eudesmol, α-eudesmol, dihydrocollumellarin and □-eudesmol. These volatile compounds have different abundances pattern responsible to the different qualities of agarwood oil such as high and low. The Z-score applied in this study give a promising result in discriminating agarwood oil to high and low quality. It is important and useful in solving the grading agarwood oil system which is currently done manually.