Comparative study of essential oils of onion and garlic by thin-layer methods chromatography and gas chromatography-mass spectrometry
AUTHORS : Baigarov D.S. | Nefedova A.V. | Kiseleva T.L. | Ustynyuk L.A.
RELEVANT UNIVERSITIES : Institute of Homeopathy and Naturotherapy of the Federal Scientific Clinical Experimental Center
traditional methods of diagnosis and treatment of Roszdrav, Moscow
YEAR : 2008
A comparative study of essential oils from raw materials of various varieties of onion and common garlic (by TLC, densitometry and chromatography-mass spectrometry) was carried out in a comparative aspect. It was found that all the studied essential oils of garlic and onion are complex mixtures, consisting of more than 480 compounds, of which 3-5 compounds are present in amounts of more than 5.0 wt.%, About 10 – in amounts of more than 1.0% , about 50 compounds in an amount of more than 0.1%, more
than 100 substances in an amount of more than 0.01%, and the content of the rest is in the range of
0.001%. About 20 components of essential oils have been identified, accounting for about 75–85% of the
oil mass. All of them belong to sulfur-containing compounds (mono-, di-, tri- and tetrasulfides of linear and
cyclic structure, thiophene and its derivatives, etc.). Terpenoids, alcohols, aldehydes,
