Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars
BACKGROUND: Orange-fleshed sweetpotato (OFSP) can be used to tackle vitamin A deficiency, a major public health problem in most developing countries. In East Africa, common ways of using sweetpotato include drying and subsequent storage. The aim of the study was to investigate the impact of drying a...
| Main Authors: | , , , , , , |
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| Format: | Journal Article |
| Language: | Inglés |
| Published: |
Wiley
2009
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/43373 |
| _version_ | 1855515805498736640 |
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| author | Bechoff, Aurélie Westby, Andrew Owori, C Dhuique-Mayer, Claudie Menya, G. Dufour, D.L. Tomlins, Keith I. |
| author_browse | Bechoff, Aurélie Dhuique-Mayer, Claudie Dufour, D.L. Menya, G. Owori, C Tomlins, Keith I. Westby, Andrew |
| author_facet | Bechoff, Aurélie Westby, Andrew Owori, C Dhuique-Mayer, Claudie Menya, G. Dufour, D.L. Tomlins, Keith I. |
| author_sort | Bechoff, Aurélie |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | BACKGROUND: Orange-fleshed sweetpotato (OFSP) can be used to tackle vitamin A deficiency, a major public health problem in most developing countries. In East Africa, common ways of using sweetpotato include drying and subsequent storage. The aim of the study was to investigate the impact of drying and storage on the total carotenoid retention (as an estimate of provitamin A retention) from OFSP.
RESULTS: Losses of total carotenoid during drying were generally low (15% or less). Total carotenoid retention in OFSP was not dependent on the type of dryer (solar or sun). Sweetpotato cultivar (Ejumula, Kakamega, SPK004/1, SPK004/1/1, SPK004/6 or SPK004/6/6) had a significant effect on retention in drying (P < 0.05). High percentage losses of total carotenoids were, however, correlated with high moisture content and high carotenoid content in fresh sweetpotato roots. After 4 months' storage at room temperature in Uganda, losses of total carotenoid in dried sweetpotato chips were high (about 70%) and this was not dependent on the use of opaque or transparent packaging.
CONCLUSION: Losses of carotenoids during storage were considered to be more of a nutritional constraint to the utilisation of dried sweetpotato than losses occurring during drying. The relationship between characteristics of the cultivars and losses of carotenoids during drying should be taken into account in selection of cultivars for processing. |
| format | Journal Article |
| id | CGSpace43373 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2009 |
| publishDateRange | 2009 |
| publishDateSort | 2009 |
| publisher | Wiley |
| publisherStr | Wiley |
| record_format | dspace |
| spelling | CGSpace433732024-08-27T10:34:54Z Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars Bechoff, Aurélie Westby, Andrew Owori, C Dhuique-Mayer, Claudie Menya, G. Dufour, D.L. Tomlins, Keith I. diet ipomoea batatas sweet potatoes carotenoids storage drying varieties batata carotenoides almacenamiento secado variedades food science biotechnology BACKGROUND: Orange-fleshed sweetpotato (OFSP) can be used to tackle vitamin A deficiency, a major public health problem in most developing countries. In East Africa, common ways of using sweetpotato include drying and subsequent storage. The aim of the study was to investigate the impact of drying and storage on the total carotenoid retention (as an estimate of provitamin A retention) from OFSP. RESULTS: Losses of total carotenoid during drying were generally low (15% or less). Total carotenoid retention in OFSP was not dependent on the type of dryer (solar or sun). Sweetpotato cultivar (Ejumula, Kakamega, SPK004/1, SPK004/1/1, SPK004/6 or SPK004/6/6) had a significant effect on retention in drying (P < 0.05). High percentage losses of total carotenoids were, however, correlated with high moisture content and high carotenoid content in fresh sweetpotato roots. After 4 months' storage at room temperature in Uganda, losses of total carotenoid in dried sweetpotato chips were high (about 70%) and this was not dependent on the use of opaque or transparent packaging. CONCLUSION: Losses of carotenoids during storage were considered to be more of a nutritional constraint to the utilisation of dried sweetpotato than losses occurring during drying. The relationship between characteristics of the cultivars and losses of carotenoids during drying should be taken into account in selection of cultivars for processing. 2009-12-23 2014-09-24T08:42:02Z 2014-09-24T08:42:02Z Journal Article https://hdl.handle.net/10568/43373 en Limited Access Wiley |
| spellingShingle | diet ipomoea batatas sweet potatoes carotenoids storage drying varieties batata carotenoides almacenamiento secado variedades food science biotechnology Bechoff, Aurélie Westby, Andrew Owori, C Dhuique-Mayer, Claudie Menya, G. Dufour, D.L. Tomlins, Keith I. Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars |
| title | Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars |
| title_full | Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars |
| title_fullStr | Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars |
| title_full_unstemmed | Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars |
| title_short | Effect of drying and storage on the degradation of carotenoids in orange-fleshed sweetpotato cultivars |
| title_sort | effect of drying and storage on the degradation of carotenoids in orange fleshed sweetpotato cultivars |
| topic | diet ipomoea batatas sweet potatoes carotenoids storage drying varieties batata carotenoides almacenamiento secado variedades food science biotechnology |
| url | https://hdl.handle.net/10568/43373 |
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