Carotenoid retention in biofortified maize using different post-harvest storage and packaging methods

Orange maize is being promoted as a source of provitamin A carotenoids (pVAC) in Zambia. Carotenoid retention in orange maize grains stored in metal silos, multilayer polyethylene and common woven bags, and maize meal packaged in single and multilayer polyethylene bags was evaluated. Significant dif...

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Detalhes bibliográficos
Autores: Taleon, V., Mugode, L., Cabrera-Soto, L., Palacios-Rojas, N.
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2017
País:México
Recursos:Centro Internacional de Mejoramiento de Maíz y Trigo
Repositório:Repositorio Institucional de Publicaciones Multimedia del CIMMYT
OAI Identifier:oai:repository.cimmyt.org:10883/18265
Acesso em linha:http://hdl.handle.net/10883/18265
Access Level:Acceso aberto
Palavra-chave:AGRICULTURAL SCIENCES AND BIOTECHNOLOGY
Biofortified Maize
Carotenoid Degradation
Hermetic Storage
MAIZE
FOOD FORTIFICATION
CAROTENOIDS
CHEMICAL DEGRADATION
CROP STORAGE
Descrição
Resumo:Orange maize is being promoted as a source of provitamin A carotenoids (pVAC) in Zambia. Carotenoid retention in orange maize grains stored in metal silos, multilayer polyethylene and common woven bags, and maize meal packaged in single and multilayer polyethylene bags was evaluated. Significant differences in total pVAC retention were found between grain storage methods (48.1–57.2%) after 6 months of storage. Total pVAC retention in hammer meal (73.1–73.5%) was higher than in breakfast meal (64.3–69.3%) after 4 months of storage; however, no differences in pVAC retention were found between meal types when stored in single and multilayer polyethylene bags. In general, b-cryptoxanthin (bCX) had higher retention than b-carotene (bC). Potential contribution of stored orange maize to the estimated average requirement of children and women was 26.5% and 24.3%, respectively. Orange maize meal can provide significant amounts of provitamin A to diets of Zambians even after 4 months of storage.

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