The aim of the study was to investigate the possibilities of enriching the most volatile chamomile (Chamomilla recutita (L.) Rauschert) compounds in extracts by supercritical carbon dioxide extraction and to analyse them by headspace gas chromatography (HSGC). HSGC was combined with mass spectrometry for identification of the compounds. The present study shows that extraction using supercritical carbon dioxide is a convenient method for isolating volatile oils. Also the most volatile components of essential oils, that are normally lost during isolation, can be enriched in an extract obtained by supercritical carbon dioxide extraction.
Vuorela, H., Holm, Y., Hiltunen, R., Harvala, T., & Laitinen, A. (1990). Extraction of the volatile oil in Chamomile flowerheads using supercritical carbon dioxide. Flavour and Fragrance Journal, 5(2), 81-84. https://doi.org/10.1002/ffj.2730050204