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Suggested method for evaluation of agarwood oil quality,
Associate Professor Dinh xuan Ba
Accepted 21st 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.