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Radical intermediates involved in the bleaching of the carotenoid crocin. Hydroxyl radicals, superoxide anions and hydrated electrons.

Int. J. Radiat. Biol. 41, 493-501 (1982)
DOI
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
The participation of the primary radicals in the bleaching of aqueous solutions of the carotenoid crocin by ionizing radiation was investigated, employing both X-radiolysis and pulse radiolysis. The pulse-radiolytic data demonstrated a very rapid diffusion-controlled attack by both hydroxyl radicals (·OH) and hydrated electrons (e- aq), while superoxide anions (O- 2) did not react at all. The site of the initial reaction of these radicals was not limited to the polyene chromophore. Slower secondary reactions involving crocin alkyl or peroxy radicals contribute mainly to the overall bleaching, in particular during steady-state irradiation.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Korrespondenzautor
ISSN (print) / ISBN 0955-3002
e-ISSN 1362-3095
Quellenangaben Band: 41, Heft: 5, Seiten: 493-501 Artikelnummer: , Supplement: ,
Verlag Informa Healthcare
Nichtpatentliteratur Publikationen
Begutachtungsstatus Peer reviewed
Institut(e) Abteilung für Strahlenbiologie und Biophysik