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Micronutrient (provitamin A and iron/zinc) retention in biofortified crops

Micronutrient (provitamin A and iron/zinc) retention in biofortified crops

Bechoff, Aurelie ORCID: 0000-0001-8141-4448, Taleon, V., Carvalho, L.M.J., Carvalho, J.L.V. and Boy, E. (2017) Micronutrient (provitamin A and iron/zinc) retention in biofortified crops. African Journal of Food, Agriculture, Nutrition and Development, 17 (2). pp. 11893-11904. ISSN 1684-5358 (Print), 1684-5374 (Online)

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Abstract

For biofortification to be successful, biofortified crops must demonstrate sufficient levels of retention of micronutrients after typical processing, storage, and cooking practices. Expected levels of retention at the breeding stage were verified experimentally. It was proven that the variety of biofortified crop, processing method, and micronutrient influence the level of retention. Provitamin A is best retained when the crops are boiled/steamed in water. Processing methods that are harsher on the food matrix (i.e. drying, frying, roasting) result in higher losses of provitamin A carotenoids. Degradation also occurs during the storage of dried products (e.g. from sweet potato, maize, cassava) at ambient temperature, and a short shelf life is a constraint that should be considered when biofortified foods. Iron and zinc retention were high for common beans (Phaseolus vulgaris) and cowpeas (Vigna unguiculata), indicating that iron and zinc were mostly preserved during cooking (with/without soaking in water).

Item Type: Article
Uncontrolled Keywords: retention, carotenoid, iron, zinc, biofortification, processing, storage, degradation
Subjects: S Agriculture > S Agriculture (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Natural Resources Institute
Faculty of Engineering & Science > Natural Resources Institute > Food & Markets Department
Faculty of Engineering & Science > Natural Resources Institute > Food Systems Research Group
Last Modified: 16 May 2019 10:48
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: GREAT 5
URI: http://gala.gre.ac.uk/id/eprint/23716

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