Advances in chemistry of isothiocyanate-derived colourants.

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F09%3A00022347" target="_blank" >RIV/60461373:22330/09:00022347 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Advances in chemistry of isothiocyanate-derived colourants.
Original language description
Reactions of isothiocyanates (ITCs) in the presence of amino compounds were studied. They led to colored structures via substituted 2-thiohydantoins. Low-molecular colorants isolated and characterized from the model systems were yellow to red diastereomeric dehydrodimers of 2-thiohydantoin derivatives that contain an acidic methylene group are formed in mixtures consisted of ITCs and amino acids with -methylene group in mild acidic to mild alkaline systems. The condensation products of the 2-thiohydantoins with reactive aromatic or heterocyclic carbaldehydes from the Maillard reaction, essential oils etc. comprise a heterogeneous group of mostly yellow colorants. Blue compounds of two types are structurally more complicated structures that arise from N-substituted amino acids and ITCs in alkaline media.
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
GM - Food industry
OECD FORD branch
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Project
<a href="/en/project/OC%20122" target="_blank" >OC 122: Biologically and technologically important S-alk(en)ylcysteine sulfoxides in vegetables</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2009
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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