Direct Extraction-Separation of Essential Oils from Citrus Peels by Supercritical Carbon Dioxide
- 1 December 1989
- journal article
- research article
- Published by Taylor & Francis in Separation Science and Technology
- Vol. 24 (15) , 1427-1435
- https://doi.org/10.1080/01496398908050661
Abstract
Essential oils from citrus peels were extracted and separated with CO2 under supercritical conditions in a single process. The peels were placed together with ethanol, as an entraining solvent, inside a high pressure cell filled with carbon dioxide at a pressure < 130 bar and a temperature of 35°C. The extract was fractionated in various pressure ranges after achieving equilibrium, and it was analyzed with a gas chromatograph. The initial fraction contained most of the water content of the peels while the following fractions were rich in essential oils. A mechanism for the extraction and separation is also given.This publication has 6 references indexed in Scilit:
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