Aromatherapy: composition of the gaseous phase at equilibrium with liquid bergamot essential oil

摘要

This work compares the composition at different temperatures of gaseous phase of bergamot essential oil at equilibrium with the liquid phase. A new GC鈥揗S methodology to determine quantitatively the volatile aroma compounds was developed. The adopted methodology involved the direct injection of headspace gas into injection port of GC鈥揗S system and of known amounts of the corresponding authentic volatile compounds. The methodology was validated. This study showed that gaseous phase composition is different from that of the liquid phase at equilibrium with it. KeywordsBergamotEssential oilVolatile compoundsGaseous phaseGas chromatography鈥搈ass spectrometryAromatherapy IntroductionPhytotherapy employs fully characterized active ingredients extracted from plants for the treatment and prevention of many diseases.