Extraction of fennel ( Mill.) seeds with supercritical CO: Comparison with hydrodistillation
作者： B DAMJANOVIC , Z LEPOJEVIC , V ZIVKOVIC , A TOLIC
DOI: 10.1016/J.FOODCHEM.2004.07.019
关键词:
摘要: Ground fennel (Foeniculum vulgare Mill.) seeds, growing wild in Montenegro, were extracted with supercritical CO2 (SC-CO2) at a flow rate of 0.2 kg CO2/h under varying extraction conditions order to determine yield, composition and organoleptic characteristics extract. The extracts obtained compared seed oil isolated by hydrodistillation. In the SC-CO2, as well hydrodistilled oil, major compounds trans-anethole (68.6–75.0%) (62.0%), methylchavicol (5.09–9.10%) (4.90%), fenchone (8.40–14.7%) (20.3%), respectively. With pressure from 80 150 bar temperature 40 57 °C, it was found that, for selected herb material, optimal SC-CO2 (high percentage trans-anethole, significant content reduced co-extracted cuticular waxes) are: pressure, 100 bar; temperature, °C; time, 120 min. Organoleptic tests confirmed that possessed less intense aroma than SC-CO2.
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