Attributes | Values |
---|
rdf:type
| |
Description
| - Extraction efficiency of different solvents extracting two main phenolic compounds from spruce needles was tested. Although 80% aqueous methanol is most frequently used for this type of material, it was found that pure methanol is a more suitable extraction solvent. A two-step extraction of crushed needles with water and methanol was a good alternative. Greater yields of p-hydroxyacetophenone than catechin extracted from uncrushed versus crushed needles indicate that sample preparation prior analysis is important as it significantly influences the results.
- Extraction efficiency of different solvents extracting two main phenolic compounds from spruce needles was tested. Although 80% aqueous methanol is most frequently used for this type of material, it was found that pure methanol is a more suitable extraction solvent. A two-step extraction of crushed needles with water and methanol was a good alternative. Greater yields of p-hydroxyacetophenone than catechin extracted from uncrushed versus crushed needles indicate that sample preparation prior analysis is important as it significantly influences the results. (en)
- Byla zjišťována extrakční účinnost různých činidel a postupů při extrakci dvou hlavních fenolických látek ve smrkovém jehličí, p-hyfroxyacetophenonu a katechinu. Přestože se k extrakci nejčastěji používá 80% metanol, jako nejúčinnější se projevil metanol čistý. Dobrou alternativou extrakce v čistém metanolu byla dvoustupňová extrakce rozdrcených jehlic (voda+metanol). Drcení vzorků ovlivnilo množství extrahovaných látek, což ukazuje na důležitost přípravy vzorků před analýzou. (cs)
|
Title
| - Extraction of p-hydroxyacetophenon and catechin from Norway spruce needles. Comparison of different extraction solvents
- Extraction of p-hydroxyacetophenon and catechin from Norway spruce needles. Comparison of different extraction solvents (en)
- Extrakce p-hydroxyacetophenonu a katechinu ze smrkového jehličí. Srovnání různých extrakčních činidel (cs)
|
skos:prefLabel
| - Extraction of p-hydroxyacetophenon and catechin from Norway spruce needles. Comparison of different extraction solvents
- Extraction of p-hydroxyacetophenon and catechin from Norway spruce needles. Comparison of different extraction solvents (en)
- Extrakce p-hydroxyacetophenonu a katechinu ze smrkového jehličí. Srovnání různých extrakčních činidel (cs)
|
skos:notation
| - RIV/67985939:_____/05:00028359!RIV06-AV0-67985939
|
http://linked.open.../vavai/riv/strany
| |
http://linked.open...avai/riv/aktivita
| |
http://linked.open...avai/riv/aktivity
| - P(GA206/05/0269), Z(AV0Z60050516)
|
http://linked.open...iv/cisloPeriodika
| |
http://linked.open...vai/riv/dodaniDat
| |
http://linked.open...aciTvurceVysledku
| |
http://linked.open.../riv/druhVysledku
| |
http://linked.open...iv/duvernostUdaju
| |
http://linked.open...titaPredkladatele
| |
http://linked.open...dnocenehoVysledku
| |
http://linked.open...ai/riv/idVysledku
| - RIV/67985939:_____/05:00028359
|
http://linked.open...riv/jazykVysledku
| |
http://linked.open.../riv/klicovaSlova
| - Picea abies; phenolic compounds; extraction (en)
|
http://linked.open.../riv/klicoveSlovo
| |
http://linked.open...odStatuVydavatele
| - DE - Spolková republika Německo
|
http://linked.open...ontrolniKodProRIV
| |
http://linked.open...i/riv/nazevZdroje
| - Analytical and Bioanalytical Chemistry
|
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
| - Sýkora, D.
- Kovářová, Marcela
- Volka, K.
- Vosmanská, M.
- Fähnrich, J.
|
http://linked.open...n/vavai/riv/zamer
| |
issn
| |
number of pages
| |