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Artículo

Carotenoid profiles in maize genotypes with contrasting kernel hardness

Saenz, EzequielIcon ; Borras, LucasIcon ; Gerde, Jose ArnaldoIcon
Fecha de publicación: 05/2021
Editorial: Academic Press Ltd - Elsevier Science Ltd
Revista: Journal of Cereal Science
ISSN: 0733-5210
Idioma: Inglés
Tipo de recurso: Artículo publicado
Clasificación temática:
Agricultura

Resumen

Kernel hardness is commonly related to total maize (Zea mays L.) carotenoid concentration. Based on the specific interactions between carotenoids and hardness related zeins, we tested the hypothesis that hardness is associated with the ability to store different carotenoids. Carotenoid profiles and flour color were measured in 13 flint and 5 dent temperate commercial hybrids, with known differential hardness and dry milling quality. They were grown in two environments during one season in Argentina. Significant genotype and environmental differences (p < 0.05) were found in all analyzed kernel hardness traits and total carotenoid concentration (11.85–28.68 mg kg−1). Kernel type (flint, dent) showed significant differences in the concentration and proportion of specific carotenoids. Flint genotypes had higher β-branch carotenoids (zeaxanthin, β-cryptoxanthin, and β-carotene), while dented hybrids had higher α-branch carotenoids (lutein, α-cryptoxanthin, and α-carotene). On average flint kernels had twice as much provitamin A concentration than dent ones. This had a direct impact on kernel flour color, flints yielded more saturated orange-colored flours and dents light-yellow colored flours. Our results support the concept that kernel hardness is an important driver for carotenoid profiles in yellow and orange temperate maize genotypes.
Palabras clave: FLOUR COLOR , KERNEL TYPE , PROVITAMIN A , ZEA MAYS L , Α-BRANCH CAROTENOIDS , Β-BRANCH CAROTENOIDS
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info:eu-repo/semantics/restrictedAccess Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)
Identificadores
URI: http://hdl.handle.net/11336/185737
URL: https://linkinghub.elsevier.com/retrieve/pii/S0733521021000473
DOI: http://dx.doi.org/10.1016/j.jcs.2021.103206
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Articulos(IICAR)
Articulos de INST. DE INVESTIGACIONES EN CIENCIAS AGRARIAS DE ROSARIO
Citación
Saenz, Ezequiel; Borras, Lucas; Gerde, Jose Arnaldo; Carotenoid profiles in maize genotypes with contrasting kernel hardness; Academic Press Ltd - Elsevier Science Ltd; Journal of Cereal Science; 99; 5-2021; 1-10
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