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| rdf:type
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| Description
| - Biologically active lignans from caulomas (stems) and leaves of Schisandra chinensis were extracted with supercritical carbon dioxide at the pressures 20–27 MPa, temperatures 40, 50 and 60 C, and solvent-to-feed ratio 36–43. Six major lignans were determined by means of HPLC: schizandrin, gomisin A, deoxyschizandrin, g-schizandrin, gomisin N and wuweizisu C. At the optimum conditions 27 MPa and 50 C, the extraction yield of lignans from caulomas was 1.3% dry weight and their content in the extract was higher than 32 wt.%. At the optimum conditions for CO2 extraction from S. chinensis leaves, 27MPa and 60 C, the yield of lignans was 0.22% d.w. and the yield of (E)-cinnamic acid was 0.18% d.w. Addition of 2–4% ethanol to CO2 increased the extraction rate but not the final yield of lignans. The solubility of extracted substances in supercritical CO2 was estimated from their extraction rates.
- Biologically active lignans from caulomas (stems) and leaves of Schisandra chinensis were extracted with supercritical carbon dioxide at the pressures 20–27 MPa, temperatures 40, 50 and 60 C, and solvent-to-feed ratio 36–43. Six major lignans were determined by means of HPLC: schizandrin, gomisin A, deoxyschizandrin, g-schizandrin, gomisin N and wuweizisu C. At the optimum conditions 27 MPa and 50 C, the extraction yield of lignans from caulomas was 1.3% dry weight and their content in the extract was higher than 32 wt.%. At the optimum conditions for CO2 extraction from S. chinensis leaves, 27MPa and 60 C, the yield of lignans was 0.22% d.w. and the yield of (E)-cinnamic acid was 0.18% d.w. Addition of 2–4% ethanol to CO2 increased the extraction rate but not the final yield of lignans. The solubility of extracted substances in supercritical CO2 was estimated from their extraction rates. (en)
- Biologicky aktivní lignany byly extrahovány z kaulomů (stonků) a listů Schisandry chinensis superkritickým oxidem uhličitým při tlaku 20-27 MPa, teplotě 40, 50 a 60 C, a poměru rozpouštědla k navážce 36-43 g/g. Kapalinovou chromatografií bylo stanoveno 6 hlavních lignanů: schizandrin, gomisin A, deoxyschizandrin, g-schizandrin, gomisin N a wuweizisu C. Při extrakci z kaulomů byly optimální podmínky 27 MPa a 50 C, výtěžek lignanů byl 1,3 % sušiny a jejich obsah v extraktu byl větší než 32 %. Při extrakci z listů byly optimální podmínky 27 MPa a 60 C, výtěžek lignanů byl 0,22 % sušiny a výtěžek kyseliny skořicové byl 0,18 % sušiny. Přídavkem 2-4 % etanolu k CO2 vzrostla rychlost extrakce, ale nezvýšil se konečný výtěžek lignanů. Z extrakční rychlosti byla vyhodnocena rozpustnost jednotlivých složek v superkritickém CO2. (cs)
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| Title
| - Supercritical Fluid Extraction of Lignans and Cinnamic Acid from Schizandra chinensis.
- Supercritical Fluid Extraction of Lignans and Cinnamic Acid from Schizandra chinensis. (en)
- Superkritická extrakce lignanů a kyseliny skořicové ze Schisandry chinensis. (cs)
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| skos:prefLabel
| - Supercritical Fluid Extraction of Lignans and Cinnamic Acid from Schizandra chinensis.
- Supercritical Fluid Extraction of Lignans and Cinnamic Acid from Schizandra chinensis. (en)
- Superkritická extrakce lignanů a kyseliny skořicové ze Schisandry chinensis. (cs)
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| skos:notation
| - RIV/67985858:_____/07:00091190!RIV08-AV0-67985858
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| http://linked.open.../vavai/riv/strany
| |
| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
| - P(GA203/01/0550), P(IAA4072102), P(KSK4040110), V, Z(AV0Z40720504)
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| http://linked.open...iv/cisloPeriodika
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| http://linked.open...vai/riv/dodaniDat
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| http://linked.open...aciTvurceVysledku
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| http://linked.open.../riv/druhVysledku
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| http://linked.open...iv/duvernostUdaju
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| http://linked.open...titaPredkladatele
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| http://linked.open...dnocenehoVysledku
| |
| http://linked.open...ai/riv/idVysledku
| - RIV/67985858:_____/07:00091190
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - supercritical extraction; solubility; lignans (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Journal of Supercritical Fluids
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| http://linked.open...in/vavai/riv/obor
| |
| http://linked.open...ichTvurcuVysledku
| |
| http://linked.open...cetTvurcuVysledku
| |
| http://linked.open...vavai/riv/projekt
| |
| http://linked.open...UplatneniVysledku
| |
| http://linked.open...v/svazekPeriodika
| |
| http://linked.open...iv/tvurceVysledku
| - Opletal, L.
- Sovová, Helena
- Sajfrtová, Marie
- Bártlová, Milena
- Křenková, M.
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| http://linked.open...n/vavai/riv/zamer
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| issn
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| number of pages
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| is http://linked.open...avai/riv/vysledek
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