Allium Discoloration: Color Compounds Formed during Pinking of Onion and Leek
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22330%2F15%3A43900431" target="_blank" >RIV/60461373:22330/15:43900431 - isvavai.cz</a>
Alternative codes found
RIV/60076658:12220/15:43889278 RIV/61388971:_____/15:00464135
Result on the web
<a href="http://pubs.acs.org/doi/ipdf/10.1021/acs.jafc.5b04564" target="_blank" >http://pubs.acs.org/doi/ipdf/10.1021/acs.jafc.5b04564</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.jafc5b04564" target="_blank" >10.1021/acs.jafc5b04564</a>
Alternative languages
Result language
angličtina
Original language name
Allium Discoloration: Color Compounds Formed during Pinking of Onion and Leek
Original language description
Structures and formation pathways of compounds responsible for pink discoloration of onion and leek were studied. A procedure was developed for the isolation and purification of the color compounds from various model systems and their identification by HPLC-DAD-MS/MS. In total, structures of 15 major color compounds were tentatively determined. It was found that the pigment is a complex mixture of highly conjugated species composed of two N-substituted 3,4-dimethylpyrrole-derived rings linked by eithera methine or a propenylidine bridge. These two-ring units are further modified by various C1- and C3-side chains. Experiments with isotope-labeled thiosulfinates revealed that the methine bridge and C1-side chains originate from the methyl group of methiin, whereas the C3 units are derived from the propenyl group of isoalliin.
Czech name
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Czech description
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Classification
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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Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2015
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Agricultural and Food Chemistry
ISSN
0021-8561
e-ISSN
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Volume of the periodical
63
Issue of the periodical within the volume
46
Country of publishing house
US - UNITED STATES
Number of pages
8
Pages from-to
10192-10199
UT code for WoS article
000366004800011
EID of the result in the Scopus database
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