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dc.contributor.authorSIQUEIRA, B. dos S.
dc.contributor.authorBASSINELLO, P. Z.
dc.contributor.authorSANTOS, S. C.
dc.contributor.authorMALGARESI, G.
dc.contributor.authorFERRI, P. H.
dc.contributor.authorRODRIGUEZ, A. G.
dc.contributor.authorFERNANDES, K. F.
dc.date.accessioned2022-05-20T11:12:32Z-
dc.date.available2022-05-20T11:12:32Z-
dc.date.created2016-03-15
dc.date.issued2016
dc.identifier.citationLWT - Food Science and Technology, v. 69, p. 593-600, June 2016.
dc.identifier.issn0023-6438
dc.identifier.urihttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1040928-
dc.descriptionFour genotypes of carioca bean were accelerate aged (40 0C/75% relative humidity) and evaluated to determine if differences in postharvest darkening trait was an enzymatic or non-enzymatic process. Chromaticity a* was the colour parameter with major alterations, and increase in chromaticity b* often masked the reddish of tegument. Peroxidase activity was not detected. Polyphenoloxidase remained active along the storage time, but its activity was higher in the lighter genotypes. Flavonoid, proanthocyanidin and total phenol content were much higher in darker genotypes, although just this last component presented significant alterations. Genotypes showed different susceptibilities to the darkening independent of phenolic content. Results of principal response curves analyse suggested different pathways for the darkening process: darkening in lighter genotypes seem to be mostly due to polyphenoloxidase activity while in dark ones there are the combination of enzymatic and non-enzymatic oxidation.
dc.language.isoeng
dc.rightsopenAccess
dc.subjectPrincipal response curves
dc.subjectTotal phenolics
dc.titleDo enzymatic or non-enzymatic pathways drive the postharvest darkening phenomenon in carioca bean tegument?
dc.typeArtigo de periódico
dc.subject.thesagroFeijão
dc.subject.thesagroPhaseolus vulgaris
dc.subject.thesagroCor
dc.subject.nalthesaurusOxidoreductases
dc.subject.nalthesaurusBeans
dc.subject.nalthesaurusColor
riaa.ainfo.id1040928
riaa.ainfo.lastupdate2022-05-19
dc.identifier.doi10.1016/j.lwt.2016.01.079
dc.contributor.institutionBEATRIZ DOS SANTOS SIQUEIRA, UFG; PRISCILA ZACZUK BASSINELLO, CNPAF; SUZANA COSTA SANTOS, UFG; GABRIEL MALGARESI; PEDRO HENRIQUE FERRI, UFG; ARMANDO GARCIA RODRIGUEZ, UFG; KATIA FLAVIA FERNANDES, UFG.
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