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dc.contributor.authorDíaz Gómez, Joana
dc.contributor.authorMoreno Martínez, José Antonio
dc.contributor.authorAngulo Asensio, Eduardo
dc.contributor.authorSandmann, Gerhard
dc.contributor.authorZhu, Changfu
dc.contributor.authorCapell Capell, Teresa
dc.contributor.authorNogareda, Carmina
dc.date.accessioned2018-03-19T11:36:43Z
dc.date.available2018-06-23T22:24:15Z
dc.date.issued2017
dc.identifier.issn0962-8819
dc.identifier.urihttp://hdl.handle.net/10459.1/62839
dc.description.abstractHigh-carotenoid (HC) maize, a biofortified staple crop which accumulates β-carotene, β-cryptoxanthin, lutein and zeaxanthin, was used as a feed component in a chicken feeding trial to assess the bioavailability of provitamin A (PVA) carotenoids in the kernel matrix compared to the synthetic and natural color additives routinely used in the poultry industry. We found that the PVA carotenoids in HC maize were not metabolized in the same manner: β-carotene was preferentially converted into retinol in the intestine whereas β-cryptoxanthin accumulated in the liver. We also considered the effect of zeaxanthin on the absorption of PVA carotenoids because zeaxanthin is the major carotenoid component of HC maize. We found that chickens fed on diets with low levels of zeaxanthin accumulated higher levels of retinol in the liver, suggesting that zeaxanthin might interfere with the absorption of β-carotene, although this observation was not statistically significant. Our results show that HC maize provides bioavailable carotenoids, including PVA carotenoids, and is suitable for use as a feed component.ca_ES
dc.description.sponsorshipThis work was supported by La Caixa (Recercaixa project PC084082 VitaMaize: High quality and safe food through antioxidant fortified maize), the Spanish Ministry of Economy and Competitiveness (BIO2014-54426-P; BIO2014-54441-P, FEDER funds), the Catalan Government (2014 SGR 1296 Agricultural Biotechnology Research Group) and the Agrotecnio Center.ca_ES
dc.language.isoengca_ES
dc.publisherSpringer International Publishingca_ES
dc.relationMINECO/PN2013-2016/BIO2014-54426-Pca_ES
dc.relationMINECO/PN2013-2016/BIO2014-54441-Pca_ES
dc.relation.isformatofVersió postprint del document publicat a https://doi.org/10.1007/s11248-017-0029-yca_ES
dc.relation.ispartofTransgenic Research, 2017, vol. 26, núm. 5, p. 591–601ca_ES
dc.rights(c) Springer International Publishing, 2017ca_ES
dc.subjectChickenca_ES
dc.subjectBioavailabilityca_ES
dc.subjectMetabolic engineeringca_ES
dc.subjectPigmentsca_ES
dc.subjectβ-caroteneca_ES
dc.titleProvitamin A carotenoids from an engineered high-carotenoid maize are bioavailable and zeaxanthin does not compromise β-carotene absorption in poultryca_ES
dc.typearticleca_ES
dc.identifier.idgrec025974
dc.type.versionacceptedVersionca_ES
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_ES
dc.identifier.doihttps://doi.org/10.1007/s11248-017-0029-y


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