Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi

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dc.creatorHummel, Marijke
dc.creatorTalsma, Elise F.
dc.creatorHoning, A. van der
dc.creatorGama, Arthur Chibwana
dc.creatorVugt, Daniel van der
dc.creatorBrouwer, Inge D.
dc.creatorSpillane, Charles
dc.date2018-10
dc.date2018-11-08T18:27:47Z
dc.date2018-11-08T18:27:47Z
dc.date.accessioned2026-06-27T18:01:20Z
dc.descriptionBackground Biofortified orange-fleshed sweetpotato (OFSP) varieties are being promoted to reduce vitamin A deficiencies due to their higher beta-carotene content. For OFSP varieties to have impact they need to be accepted and consumed at scale amongst populations suffering from vitamin A deficiencies. Objective We investigated the sensory and cultural acceptability of OFSP varieties amongst households with children aged between 2–5 years old in two areas in Central and Southern Malawi using an integrated model of the Theory of Planned Behavior (TPB) and the Health Belief Model (HBM). Methods Sensory acceptability was measured using a triangle, preference and acceptance test using three OFSP varieties and one control variety, among 270 adults and 60 children. Based on a food ethnographic study, a questionnaire on cultural acceptability was developed and administered to 302 caretakers. Data were analyzed by calculating Spearman’s correlations between constructs and multiple linear regression modeling. Results The sensory evaluation indicates that all three OFSP varieties are accepted (scores >3 on 5-point scale), but there is a preference for the control variety over the three OFSP varieties. Almost all caretakers are intending to frequently prepare OFSP for their child in future (97%). Based on regression analysis, the constructs ‘subjective norms’ (β = 0.25, p = 0.00) reflecting social pressure, and ‘attitudes toward behavior’ (β = 0.14 p = 0.01), reflecting the feelings towards serving their child OFSP, were the best predictors for caretakers’ behavior to prepare OFSP for their child. Conclusions Our study shows that both sensory and cultural attributes can influence acceptability of varieties and consumption amongst households with children. Considering these attributes can improve the impact of biofortified crops in future programming, by reducing Vitamin A deficiencies through the intake of these nutrient-rich crops.
dc.identifierhttps://hdl.handle.net/10568/97894
dc.identifier.urihttp://hdl.handle.net/123456789/152665
dc.languageen
dc.publisherPublic Library of Science
dc.rightsOpen Access
dc.sourceHummel, M., Talsma, E. F., Van der Honing, A., Gama, A. C., Van Vugt, D., Brouwer, I. D., & Spillane, C. (2018). Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orange-fleshed sweetpotato varieties among households with children in Malawi. PLOS ONE, 13(10), e0204754. https://doi.org/10.1371/journal.pone.0204754
dc.subjectsweet potatoes
dc.subjectbatata
dc.subjectfood fortification
dc.subjectfortificación de alimentos
dc.subjectenriquecimiento de los alimentos
dc.subjectvitamins
dc.subjecthuman nutrition
dc.subjectnutrición humana
dc.subjectmalawi
dc.subjectchildren
dc.subjectbiofortification
dc.subjectadoption
dc.subjectconsumer behaviour
dc.subjectconsumer surveys
dc.subjectvitamin deficiencies
dc.titleSensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi
dc.typeJournal Article

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