. "Supercritical Fluid Extraction of Essential Oils - Results of Joint Research" . . . . "RIV/67985858:_____/06:00055186!RIV07-AV0-67985858" . "Peppermint, thyme, and sage herbs and yarrow flowers were extracted with supercritical and liquid carbon dioxide at the pressure 9-13 MPa and the temperature 25-60 oC., Two extraction periods were clearly distinguished. Almost pure essential oil was extracted in the first, fast period. The extraction was then retarded, and waxes and water prevailed over the essential oil in the extract collected in the second period that was controlled by essential oil-matrix interaction. To demonstrate how the interaction affects the extraction of essential oils from seeds, thermodynamic modelling of limonene+vegetable oil+CO2 equilibrium was applied. Compared to hydrodistillation, the extracts contain less monoterpenes due to the low efficiency of their collection in cooled trap, but the yield of diterpene manool was, compared to hydrodistillation, more than twofold. The extraction of sage essential oil carried out at 9-13 MPa and 25-50 oC was most efficient at 13 MPa and 50 oC."@en . . "Na\u0165 m\u00E1ty peprn\u00E9, mate\u0159\u00EDdou\u0161ky a \u0161alv\u011Bje a kv\u011Bty \u0159eb\u0159\u00ED\u010Dku byly extrahov\u00E1ny nadkritick\u00FDm a kapaln\u00FDm oxidem uhli\u010Dit\u00FDm p\u0159i tlaku 9-13 MPa a teplot\u011B 25-60 oC. Byly z\u0159eteln\u00E9 dv\u011B extrak\u010Dn\u00ED periody. V prvn\u00ED period\u011B se rychle extrahovala t\u00E9m\u011B\u0159 \u010Dist\u00E1 silice, ve druh\u00E9 period\u011B se extrakce zpomalila vlivem interakce silice s matric\u00ED a v extraktu p\u0159eva\u017Eovaly kutikul\u00E1rn\u00ED vosky a voda. Oproti produktu hydrodestilace obsahoval CO2 extrakt m\u00E9n\u011B monoterpen\u016F, proto\u017Ee jejich z\u00E1chyt v trapce nebyl \u00FApln\u00FD, ale zato v\u00FDt\u011B\u017Eek diterpenu manoolu byl v\u00EDce ne\u017E dvojn\u00E1sobn\u00FD. Optim\u00E1ln\u00ED podm\u00EDnky pro extrakci \u0161alv\u011Bjov\u00E9 silice, testovan\u00E9 p\u0159i tlku 9-13 MPa a teplot\u011B 25-50 oC, byly 13 MPa and 50 oC. Termodynamick\u00FDm modelov\u00E1n\u00EDm syst\u00E9mu limonen+rostlinn\u00FD olej+CO2 jsme uk\u00E1zali, jak interakce terpenu s rostlinn\u00FDm olejem ovliv\u0148uje extrakci silic ze semen."@cs . "3" . "502487" . "CS - St\u00E1tn\u00ED svaz Srbska a \u010Cern\u00E9 Hory" . "[D0F4218B9E69]" . "Supercritical Fluid Extraction of Essential Oils - Results of Joint Research"@en . "Bocevska, M." . . "7"^^ . . "P(IAA4072102), Z(AV0Z40720504)" . "12" . "Supercritical Fluid Extraction of Essential Oils - Results of Joint Research" . "1"^^ . "Aleksovski, S." . "4"^^ . . . "solute-matrix interaction; collection efficiency; fractionation"@en . "Supercritical Fluid Extraction of Essential Oils - Results of Joint Research"@en . "1451-9372" . "Superkritick\u00E1 extrakce silic \u2013 v\u00FDsledky spole\u010Dn\u00E9ho v\u00FDzkumu"@cs . "Superkritick\u00E1 extrakce silic \u2013 v\u00FDsledky spole\u010Dn\u00E9ho v\u00FDzkumu"@cs . "168;174" . . "Stateva, R. P." . . "RIV/67985858:_____/06:00055186" . . . "Sovov\u00E1, Helena" . . . . . "Peppermint, thyme, and sage herbs and yarrow flowers were extracted with supercritical and liquid carbon dioxide at the pressure 9-13 MPa and the temperature 25-60 oC., Two extraction periods were clearly distinguished. Almost pure essential oil was extracted in the first, fast period. The extraction was then retarded, and waxes and water prevailed over the essential oil in the extract collected in the second period that was controlled by essential oil-matrix interaction. To demonstrate how the interaction affects the extraction of essential oils from seeds, thermodynamic modelling of limonene+vegetable oil+CO2 equilibrium was applied. Compared to hydrodistillation, the extracts contain less monoterpenes due to the low efficiency of their collection in cooled trap, but the yield of diterpene manool was, compared to hydrodistillation, more than twofold. The extraction of sage essential oil carried out at 9-13 MPa and 25-50 oC was most efficient at 13 MPa and 50 oC." . "Chemical Industry & Chemical Engineering Quarterly" .