International Journal of Agricultural Research and Review

Suggested method for evaluation of agarwood oil quality,

Abstract

Accepted 21^st June, 2017.

After making GC-MS analysis on Agarwood essential oil (obtained from hydrodistillation) we have data of volatile organic compounds (while non-volatile and semi-volatile compounds, phenylethyl chromones for instance, obtained from Solvent extraction and TLC analysis). From volatile organic compounds said above we pay attention to the so-called Key compounds and Dominant compounds which are defined as follows:

Key compound (KC for short) is the term that includes:

-                      Sesquiterpenes (having a common molecular formula C₁₅H₂₄)

-                      Sesquiterpenoids (having a common molecular formula C₁₅H₂₄O)

-                      Sesquiterpene alcohols (having a common molecular formula C₁₅H₂₆O)

in which Sesquiterpenoids and Sesquiterpene alcohols are called Dominant compound (DC for short).

Practical experiences: The higher content of dominant compound the better aromatic scent and therapeutic effects ^{(1) (2) (3) (4)}

Definition of ∑ , α and β:

∑ = [C₁₅H₂₄] + [C₁₅H₂₄O] + [C₁₅H₂₆O] ;  α =  ; β =    (easily seen β =  )

in which [X] is the content (%) of X.