PHOTOREACTIONS OF RIBOFLAVIN WITH SPERMINE AND THEIR ROLE IN TRYPTOPHAN PHOTOCONSUMPTION INDUCED BY RIBOFLAVIN

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dc.contributor.authorSILVA, E
dc.contributor.authorALMARZA, C
dc.contributor.authorBERNDT, D
dc.contributor.authorLARRONDO, L
dc.contributor.authorLISSI, E
dc.date.accessioned2024-01-10T12:07:33Z
dc.date.available2024-01-10T12:07:33Z
dc.date.issued1993
dc.description.abstractThe influence of spermine (Spr) on riboflavin (Rb) and riboflavin-tryptophan (Rb-Trp) solutions irradiated at 450 nm under aerobic and anaerobic conditions was studied. In both systems, it is shown that Spr interacts with 3Rb probably giving spermine-derived and flavin-derived radicals. In the presence of oxygen, modified Rb is regenerated with the simultaneous production of the active oxygen species O2.- and/or HO2.. The addition of Spr to the Rb-Trp system under aerobic conditions leads to a small protection of Trp consumption, although oxygen consumption is increased. This small protection arises as a consequence of competitive interaction of Trp and Spr with 3Rb. The competition of Spr and oxygen for 3Rb could also explain the autocatalytic oxygen consumption observed in the presence of the amine. Under anaerobic conditions Spr produces a larger protection of Trp consumption, which is compatible with the larger Rb triplet lifetime expected under these conditions.
dc.format.extent5 páginas
dc.fuente.origenWOS
dc.identifier.doi10.1016/1011-1344(93)80183-A
dc.identifier.issn1011-1344
dc.identifier.pubmedidMEDLINE:8301415
dc.identifier.urihttps://doi.org/10.1016/1011-1344(93)80183-A
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/76296
dc.identifier.wosidWOS:A1993ML99900011
dc.information.autorucQuímica;Silva E;S/I;98771
dc.issue.numero2-3
dc.language.isoen
dc.nota.accesoSin adjunto
dc.pagina.final201
dc.pagina.inicio197
dc.publisherELSEVIER SCIENCE SA
dc.revistaJOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY
dc.rightsregistro bibliográfico
dc.subjectRIBOFLAVIN
dc.subjectTRYPTOPHAN
dc.subjectSPERMINE
dc.subjectPOLYAMINES
dc.subjectPHOTOPROTECTION
dc.subjectPHOTODEGRADATION
dc.subjectPOLYAMINES
dc.subjectLIPOPEROXIDATION
dc.subjectINHIBITION
dc.subject.ods03 Good Health and Well-being
dc.subject.odspa03 Salud y bienestar
dc.titlePHOTOREACTIONS OF RIBOFLAVIN WITH SPERMINE AND THEIR ROLE IN TRYPTOPHAN PHOTOCONSUMPTION INDUCED BY RIBOFLAVIN
dc.typeartículo
dc.volumen21
sipa.codpersvinculados98771
sipa.indexWOS
sipa.indexScopus
sipa.trazabilidadCarga SIPA;09-01-2024
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