Effect of freezing and cool storage on carotenoid content and quality of zeaxanthin-biofortified and standard yellow sweet-corn (Zea mays L.)

 

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Detalles Bibliográficos
Autores: Calvo Brenes, Paula, O'Hare, Tim
Formato: artículo original
Fecha de Publicación:2020
Descripción:Influence of freezing temperature at –20 °C and −80 °C up to three months, and influence of storage at 4 °C up to fifteen days on carotenoid content and quality parameters in zeaxanthin-biofortified and commercial yellow sweet-corn were evaluated. Cobs frozen and stored at -20 °C showed a decrease in carotenoid concentration, in which carotenoids from the β-branch were mainly affected, compared to the α-branch carotenoids. Freezing temperature at −80 °C did not affect carotenoid concentration for cobs stored up to three months. Storage at 4 °C was shown to be adequate for carotenoid retention up to fifteen days, and also as a preconditioning temperature to avoid the detrimental effects of storing cobs at −20 °C. Colour and starch content were not affected by storage at 4 °C up to fifteen days, however a reduction in sugars and total soluble solids was observed.
País:Kérwá
Institución:Universidad de Costa Rica
Repositorio:Kérwá
Lenguaje:Inglés
OAI Identifier:oai:https://www.kerwa.ucr.ac.cr:10669/85372
Acceso en línea:https://www.sciencedirect.com/science/article/pii/S0889157519302674
https://hdl.handle.net/10669/85372
Access Level:acceso abierto
Palabra clave:Postharvest
Temperature
Freezing
Preconditioning
Zeaxanthin
Biofortification
Sweet corn