Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi
Background 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 deficienci...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Public Library of Science
2018
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/97894 |
| _version_ | 1855535956866629632 |
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| author | Hummel, Marijke Talsma, Elise F. Honing, A. van der Gama, Arthur Chibwana Vugt, Daniel van der Brouwer, Inge D. Spillane, Charles |
| author_browse | Brouwer, Inge D. Gama, Arthur Chibwana Honing, A. van der Hummel, Marijke Spillane, Charles Talsma, Elise F. Vugt, Daniel van der |
| author_facet | Hummel, Marijke Talsma, Elise F. Honing, A. van der Gama, Arthur Chibwana Vugt, Daniel van der Brouwer, Inge D. Spillane, Charles |
| author_sort | Hummel, Marijke |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Background
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. |
| format | Journal Article |
| id | CGSpace97894 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2018 |
| publishDateRange | 2018 |
| publishDateSort | 2018 |
| publisher | Public Library of Science |
| publisherStr | Public Library of Science |
| record_format | dspace |
| spelling | CGSpace978942025-03-13T09:45:02Z Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi Hummel, Marijke Talsma, Elise F. Honing, A. van der Gama, Arthur Chibwana Vugt, Daniel van der Brouwer, Inge D. Spillane, Charles sweet potatoes batata food fortification fortificación de alimentos enriquecimiento de los alimentos vitamins human nutrition nutrición humana malawi children biofortification adoption consumer behaviour consumer surveys vitamin deficiencies Background 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. 2018-10 2018-11-08T18:27:47Z 2018-11-08T18:27:47Z Journal Article https://hdl.handle.net/10568/97894 en Open Access Public Library of Science Hummel, 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 |
| spellingShingle | sweet potatoes batata food fortification fortificación de alimentos enriquecimiento de los alimentos vitamins human nutrition nutrición humana malawi children biofortification adoption consumer behaviour consumer surveys vitamin deficiencies Hummel, Marijke Talsma, Elise F. Honing, A. van der Gama, Arthur Chibwana Vugt, Daniel van der Brouwer, Inge D. Spillane, Charles Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi |
| title | Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi |
| title_full | Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi |
| title_fullStr | Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi |
| title_full_unstemmed | Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi |
| title_short | Sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in Malawi |
| title_sort | sensory and cultural acceptability tradeoffs with nutritional content of biofortified orangefleshed sweetpotato varieties among households with children in malawi |
| topic | sweet potatoes batata food fortification fortificación de alimentos enriquecimiento de los alimentos vitamins human nutrition nutrición humana malawi children biofortification adoption consumer behaviour consumer surveys vitamin deficiencies |
| url | https://hdl.handle.net/10568/97894 |
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