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

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cg.authorship.typesCGIAR multi-centre
cg.contributor.affiliationInternational Potato Center
cg.contributor.affiliationWageningen University & Research
cg.contributor.affiliationInternational Center for Tropical Agriculture
cg.contributor.affiliationNational University of Ireland
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.crpAgriculture for Nutrition and Health
cg.contributor.donorUnited States Department of Agriculture
cg.contributor.donorCGIAR Trust Fund
cg.coverage.countryMalawi
cg.coverage.iso3166-alpha2MW
cg.coverage.regionAfrica
cg.coverage.regionSouthern Africa
cg.coverage.regionEastern Africa
cg.creator.identifierArthur Chibwana: 0000-0002-2115-4151
cg.creator.identifierElise Talsma: 0000-0002-6034-4708
cg.howPublishedFormally Published
cg.identifier.doihttps://doi.org/10.1371/journal.pone.0204754
cg.identifier.projectIFPRI - HarvestPlus
cg.isijournalISI Journal
cg.issn1932-6203
cg.issue10
cg.journalPLOS One
cg.numbere0204754
cg.reviewStatusPeer Review
cg.subject.ciatBIOFORTIFICATION
cg.subject.ciatNUTRITION
cg.subject.cipSWEETPOTATOES
cg.subject.cipSWEETPOTATO AGRI-FOOD SYSTEMS
cg.subject.cipBIOFORTIFICATION
cg.volume13
dc.contributor.authorHummel, Marijke
dc.contributor.authorTalsma, Elise F.
dc.contributor.authorHoning, A. van der
dc.contributor.authorGama, Arthur Chibwana
dc.contributor.authorVugt, Daniel van der
dc.contributor.authorBrouwer, Inge D.
dc.contributor.authorSpillane, Charles
dc.date.accessioned2018-11-08T18:27:47Zen
dc.date.available2018-11-08T18:27:47Zen
dc.identifier.urihttps://hdl.handle.net/10568/97894
dc.titleSensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawien
dcterms.abstractBackground 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.en
dcterms.accessRightsOpen Access
dcterms.audienceScientists
dcterms.audienceCGIAR
dcterms.available2018-10-18
dcterms.bibliographicCitationHummel, 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.0204754en
dcterms.extent19 p.
dcterms.issued2018-10
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.publisherPublic Library of Science
dcterms.replaceshttps://hdl.handle.net/10568/97905
dcterms.replaceshttps://hdl.handle.net/10568/171151
dcterms.subjectsweet potatoesen
dcterms.subjectbatataen
dcterms.subjectfood fortificationen
dcterms.subjectfortificación de alimentosen
dcterms.subjectenriquecimiento de los alimentosen
dcterms.subjectvitaminsen
dcterms.subjecthuman nutritionen
dcterms.subjectnutrición humanaen
dcterms.subjectmalawien
dcterms.subjectchildrenen
dcterms.subjectbiofortificationen
dcterms.subjectadoptionen
dcterms.subjectconsumer behaviouren
dcterms.subjectconsumer surveysen
dcterms.subjectvitamin deficienciesen
dcterms.typeJournal Article

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