Essential Oils from scCO₂ Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation.

Two different extraction methods were used for a comparative study of essential oils obtained from the scCO₂ (sc-supercritical) extract: microwave-assisted hydrodistillation (MAHD) and conventional hydrodistillation (HD). As a result, the best conditions for the maximum essential oil production were determined for the MAHD method at 335 W microwave power for 30 min at water to raw material ratio of 8:3. The obtained essential oils were enriched in β-myrcene in the amount of 74.