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Molecules 2018, 23(11), 2866; https://doi.org/10.3390/molecules23112866

Essential Oils from Humulus Lupulus scCO2 Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation

1
Supercritical Extraction Department, New Chemical Syntheses Institute, Al. Tysiąclecia Państwa Polskiego 13A, 24-110 Puławy, Poland
2
Import Export J.A. Szałas Company, Garbarska 125A, 26-600 Radom, Poland
*
Author to whom correspondence should be addressed.
Received: 27 September 2018 / Revised: 23 October 2018 / Accepted: 31 October 2018 / Published: 3 November 2018
(This article belongs to the Special Issue Advances in Food Analysis)
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Abstract

Two different extraction methods were used for a comparative study of essential oils obtained from the Humulus lupulus 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 74.13%–89.32% (wt%). Moreover, the first application for determination of the above-mentioned volatile compounds by supercritical fluid chromatography (SFC) with photo-diode array detection (PDA) is presented, which in comparison with gas chromatography coupled with mass spectrometry (GC-MS/MS) resulted in similar values for β-myrcene and α-humulene in obtained samples within less than 1 min. View Full-Text
Keywords: essential oil; extraction techniques; hops extracts; hydrodistillation; Marynka strain; microwave-assisted hydrodistillation essential oil; extraction techniques; hops extracts; hydrodistillation; Marynka strain; microwave-assisted hydrodistillation
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Tyśkiewicz, K.; Gieysztor, R.; Konkol, M.; Szałas, J.; Rój, E. Essential Oils from Humulus Lupulus scCO2 Extract by Hydrodistillation and Microwave-Assisted Hydrodistillation. Molecules 2018, 23, 2866.

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