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| rdf:type
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| Description
| - Detailně byla studována strukturní kriteria pro sloučeniny podílející se na tvorbě barevných látek při zpracování cibulových zelenin. Byla sledována schopnost 20 kódovaných aminokyselin, spolu se šesti přirozeně se vyskytujícími thiosulfináty a jejich analogy. Bylo zjištěno, že nezbytnými strukturními kritérii jsou nesubstituovaná primární aminoskupina a volná karboxylová skupina. Ze všech testovaných thiosulfinátů pouze ty, které obsahovaly alespoň tři atomy uhlíku a jeden -vodík, byly schopny tvořit při reakci s glycinem pigment. Thiosulfonáty, sulfoxidy, sulfidy a disulfidy tuto schopnost nemají. pH-Optimum pro tvorbu pigmentů se pohybuje mezi 5,0 a 6,0 pro všechny testované thiosulfináty. (cs)
- Structural requirements for compounds involved in Allium discoloration have been investigated in detail. The abilities of all 20 protein amino acids and six naturally occurring 1-propenyl-containing thiosulfinates to form the pigments have been studied. Furthermore, several analogues of these thiosulfinates were prepared by synthesis, and their color-forming abilities were evaluated, together with those of various amino compounds. It has been found that an unsubstituted primary amino group and a free carboxyl group are essential structural features required for amino compounds to be able to generate the pigments. Out of the thiosulfinate analogues tested, only those containing at least a three-carbon chain with the carbon bearing a hydrogen atom yielded the pigments after reacting with glycine. Thiosulfonates, sulfoxides, sulfides, and disulfides did not form any colored products when mixed with glycine. The pH optimum for pigment formation has been found to be between 5.0 and 6.0 for all thiosulfinat
- Structural requirements for compounds involved in Allium discoloration have been investigated in detail. The abilities of all 20 protein amino acids and six naturally occurring 1-propenyl-containing thiosulfinates to form the pigments have been studied. Furthermore, several analogues of these thiosulfinates were prepared by synthesis, and their color-forming abilities were evaluated, together with those of various amino compounds. It has been found that an unsubstituted primary amino group and a free carboxyl group are essential structural features required for amino compounds to be able to generate the pigments. Out of the thiosulfinate analogues tested, only those containing at least a three-carbon chain with the carbon bearing a hydrogen atom yielded the pigments after reacting with glycine. Thiosulfonates, sulfoxides, sulfides, and disulfides did not form any colored products when mixed with glycine. The pH optimum for pigment formation has been found to be between 5.0 and 6.0 for all thiosulfinat (en)
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| Title
| - Discoloration: The Color-Forming Potential of Individual Thiosulfinates and Amino Acids. Structural Requirements for the Color-Developing Precursors
- Discoloration: The Color-Forming Potential of Individual Thiosulfinates and Amino Acids. Structural Requirements for the Color-Developing Precursors (en)
- Discoloration: The Color-Forming Potential of Individual Thiosulfinates and Amino Acids. Structural Requirements for the Color-Developing Precursors (cs)
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| skos:prefLabel
| - Discoloration: The Color-Forming Potential of Individual Thiosulfinates and Amino Acids. Structural Requirements for the Color-Developing Precursors
- Discoloration: The Color-Forming Potential of Individual Thiosulfinates and Amino Acids. Structural Requirements for the Color-Developing Precursors (en)
- Discoloration: The Color-Forming Potential of Individual Thiosulfinates and Amino Acids. Structural Requirements for the Color-Developing Precursors (cs)
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| skos:notation
| - RIV/60461373:22330/07:00019605!RIV08-GA0-22330___
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| http://linked.open.../vavai/riv/strany
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| http://linked.open...avai/riv/aktivita
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| http://linked.open...avai/riv/aktivity
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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
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| http://linked.open...ai/riv/idVysledku
| - RIV/60461373:22330/07:00019605
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| http://linked.open...riv/jazykVysledku
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| http://linked.open.../riv/klicovaSlova
| - Allium; onion; leek; garlic; pinking; reddening; greening; discoloration; pigment; thiosulfinate (en)
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| http://linked.open.../riv/klicoveSlovo
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| http://linked.open...odStatuVydavatele
| - US - Spojené státy americké
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| http://linked.open...ontrolniKodProRIV
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| http://linked.open...i/riv/nazevZdroje
| - Journal of Agricultural and Food Chemistry
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| http://linked.open...in/vavai/riv/obor
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| http://linked.open...ichTvurcuVysledku
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| http://linked.open...cetTvurcuVysledku
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| http://linked.open...vavai/riv/projekt
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| http://linked.open...UplatneniVysledku
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| http://linked.open...iv/tvurceVysledku
| - Kubec, Roman
- Velíšek, Jan
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| issn
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| number of pages
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| http://localhost/t...ganizacniJednotka
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| is http://linked.open...avai/riv/vysledek
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