On-farm evaluation of the impact of drying and storage on the carotenoid content of orange-fleshed sweet potato (Ipomea batata Lam.)
Drying of orange-fleshed sweet potato was evaluated under African rural conditions. Three locally built dryers (open-air sun, tunnel and shade) were tested using Resisto and MGCL01 varieties in Mozambique. Total carotenoid losses were low in all dryers being 9.2% on average. After drying, sweet potato chips were stored in a traditional way (jute bags inside a mud house). Chip size (thin, thick chip or slice) had a significant effect on drying (P < 0.05) but not on storage and variety had an effect on both. Total carotenoid losses during storage were much higher being 83.7% on average, after 4 months, with main individual carotenoids fitting a first-order kinetics degradation. Globally, carotenoid losses on-farm or on-research station were of similar level.
| Main Authors: | , , , , |
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| Format: | article biblioteca |
| Language: | eng |
| Subjects: | Q02 - Traitement et conservation des produits alimentaires, Q04 - Composition des produits alimentaires, N20 - Machines et matériels agricoles, Ipomoea batatas, patate douce, séchage, composition chimique, perte au cours du traitement, caroténoïde, stockage, séchoir, http://aims.fao.org/aos/agrovoc/c_3937, http://aims.fao.org/aos/agrovoc/c_14729, http://aims.fao.org/aos/agrovoc/c_2402, http://aims.fao.org/aos/agrovoc/c_1794, http://aims.fao.org/aos/agrovoc/c_6196, http://aims.fao.org/aos/agrovoc/c_1333, http://aims.fao.org/aos/agrovoc/c_7427, http://aims.fao.org/aos/agrovoc/c_2401, http://aims.fao.org/aos/agrovoc/c_4964, |
| Online Access: | http://agritrop.cirad.fr/557780/ http://agritrop.cirad.fr/557780/1/document_557780.pdf |
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