Supercritical CO2 Extraction of Volatile Thymoquinone from Monarda didyma and M. fistulosa Herbs.

0455763 - ÚCHP 2016 RIV NL eng J - Článek v odborném periodiku
Sovová, Helena - Sajfrtová, Marie - Topiař, Martin
Supercritical CO2 Extraction of Volatile Thymoquinone from Monarda didyma and M. fistulosa Herbs.
Journal of Supercritical Fluids. Roč. 105, OCT (2015), s. 29-34. ISSN 0896-8446. E-ISSN 1872-8162.
[European Meeting on Supercritical Fluids /14./. Marseille, 18.05.2014-21.05.2014]
Grant CEP: GA TA ČR TA01010578
Institucionální podpora: RVO:67985858
Klíčová slova: supercritical fluid extraction * kinetics * volatile oil
Kód oboru RIV: CI - Průmyslová chemie a chemické inženýrství
Impakt faktor: 2.579, rok: 2015

Volatile oil rich in thymoquinone (TQ) was extracted from dry aerial parts of scarlet bee balm (Monarda didyma) and wild bergamot (Monarda fistulosa) with supercritical CO2. The optimum extraction conditions were determined as 12 MPa and 40 degrees C for both yield (0.6 mg TQ/g M. didyma and 1.7 mg TQ/g M. fistulosa) and high TQ concentration in extract (5.2 and 10.2% w/w, resp.). The difference in the extraction kinetics of volatile oil and cuticular waxes was examined. The supercritical fluid extraction was compared with hydrodistillation and Soxhlet extraction with hexane. Substantial thymoquinone loss during hydrodistillation was confirmed. The extraction with hexane ensured maximum TQ yields (0.7 and 2.1 mg/g, resp.) but TQ concentration in the extracts was lower (2.6 and 3.8%).
Trvalý link: http://hdl.handle.net/11104/0256379