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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| Autores: | , |
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| 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:kerwa.ucr.ac.cr:10669/85372 |
| Acceso en línea: | https://www.sciencedirect.com/science/article/pii/S0889157519302674 https://hdl.handle.net/10669/85372 |
| Palabra clave: | Postharvest Temperature Freezing Preconditioning Zeaxanthin Biofortification Sweet corn |