Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservation
Abstract Yams (Dioscorea species) are an important food resource in Madagascar, where both cultivated winged yam (D. alata) and wild edible yams are consumed. However, there is limited knowledge on the nutrient composition of wild edible yams in Madagascar, and on how they compare with the cultivate...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | Food Science & Nutrition |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/fsn3.3757 |
| _version_ | 1797348473272532992 |
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| author | Mirana K. Ratsimbazafy Paul A. Sharp Louisette Razanamparany Mamy Tiana Rajaonah Feno Rakotoarison Kholoud K. Khoja Paul Wilkin Melanie‐Jayne R. Howes |
| author_facet | Mirana K. Ratsimbazafy Paul A. Sharp Louisette Razanamparany Mamy Tiana Rajaonah Feno Rakotoarison Kholoud K. Khoja Paul Wilkin Melanie‐Jayne R. Howes |
| author_sort | Mirana K. Ratsimbazafy |
| collection | DOAJ |
| description | Abstract Yams (Dioscorea species) are an important food resource in Madagascar, where both cultivated winged yam (D. alata) and wild edible yams are consumed. However, there is limited knowledge on the nutrient composition of wild edible yams in Madagascar, and on how they compare with the cultivated winged yam. Therefore, in this study, nine wild edible yam species, one with two subspecies from Madagascar (D. bako, D. buckleyana, D. irodensis, D. maciba, D. orangeana, D. pteropoda, D. sambiranensis subsp. bardotiae and subsp. sambiranensis, D. seriflora, and Dioscorea species Ovy valiha), were analyzed for their nutrient composition, compared with cultivated D. alata. They include 6/6 of the most favored wild edible yam species in Madagascar. New nutrient composition data (protein, carbohydrate/starch, energy, lipid, β‐carotene, and minerals) are presented for these nine wild edible yam species. The results show that they contain comparable levels of lipids and starch to D. alata, but none are better sources of protein than D. alata. The results show that D. irodensis contains a significantly higher β‐carotene content when compared to all other edible yams analyzed, and that D. buckleyana, D. irodensis, and D. sambiranensis subsp. bardotiae have a higher calcium content than cultivated D. alata, while all nine wild edible yam species analyzed contain a higher iron content, compared to cultivated D. alata. The nutrient composition data presented could provide new incentives to conserve wild edible yams and inform on strategies to select Dioscorea species for sustainable cultivation and use, providing opportunities to enhance future food security in Madagascar. |
| first_indexed | 2024-03-08T12:06:24Z |
| format | Article |
| id | doaj.art-1c5d23a0bf3044d09038472c30128720 |
| institution | Directory Open Access Journal |
| issn | 2048-7177 |
| language | English |
| last_indexed | 2024-03-08T12:06:24Z |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Food Science & Nutrition |
| spelling | doaj.art-1c5d23a0bf3044d09038472c301287202024-01-23T07:22:47ZengWileyFood Science & Nutrition2048-71772024-01-0112128029110.1002/fsn3.3757Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservationMirana K. Ratsimbazafy0Paul A. Sharp1Louisette Razanamparany2Mamy Tiana Rajaonah3Feno Rakotoarison4Kholoud K. Khoja5Paul Wilkin6Melanie‐Jayne R. Howes7Laboratoire de Biochimie Appliqué aux Sciences de l'alimentation Université d'Antananarivo Antananarivo MadagascarDepartment of Nutritional Sciences King's College London London UKLaboratoire de Biochimie Appliqué aux Sciences de l'alimentation Université d'Antananarivo Antananarivo MadagascarRoyal Botanic Gardens Surrey UKRoyal Botanic Gardens Surrey UKDepartment of Nutritional Sciences King's College London London UKRoyal Botanic Gardens Surrey UKRoyal Botanic Gardens Surrey UKAbstract Yams (Dioscorea species) are an important food resource in Madagascar, where both cultivated winged yam (D. alata) and wild edible yams are consumed. However, there is limited knowledge on the nutrient composition of wild edible yams in Madagascar, and on how they compare with the cultivated winged yam. Therefore, in this study, nine wild edible yam species, one with two subspecies from Madagascar (D. bako, D. buckleyana, D. irodensis, D. maciba, D. orangeana, D. pteropoda, D. sambiranensis subsp. bardotiae and subsp. sambiranensis, D. seriflora, and Dioscorea species Ovy valiha), were analyzed for their nutrient composition, compared with cultivated D. alata. They include 6/6 of the most favored wild edible yam species in Madagascar. New nutrient composition data (protein, carbohydrate/starch, energy, lipid, β‐carotene, and minerals) are presented for these nine wild edible yam species. The results show that they contain comparable levels of lipids and starch to D. alata, but none are better sources of protein than D. alata. The results show that D. irodensis contains a significantly higher β‐carotene content when compared to all other edible yams analyzed, and that D. buckleyana, D. irodensis, and D. sambiranensis subsp. bardotiae have a higher calcium content than cultivated D. alata, while all nine wild edible yam species analyzed contain a higher iron content, compared to cultivated D. alata. The nutrient composition data presented could provide new incentives to conserve wild edible yams and inform on strategies to select Dioscorea species for sustainable cultivation and use, providing opportunities to enhance future food security in Madagascar.https://doi.org/10.1002/fsn3.3757carotenoidsDioscoreamacronutrientsmicronutrientsmineralsprotein |
| spellingShingle | Mirana K. Ratsimbazafy Paul A. Sharp Louisette Razanamparany Mamy Tiana Rajaonah Feno Rakotoarison Kholoud K. Khoja Paul Wilkin Melanie‐Jayne R. Howes Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservation Food Science & Nutrition carotenoids Dioscorea macronutrients micronutrients minerals protein |
| title | Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservation |
| title_full | Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservation |
| title_fullStr | Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservation |
| title_full_unstemmed | Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservation |
| title_short | Wild edible yams from Madagascar: New insights into nutritional composition support their use for food security and conservation |
| title_sort | wild edible yams from madagascar new insights into nutritional composition support their use for food security and conservation |
| topic | carotenoids Dioscorea macronutrients micronutrients minerals protein |
| url | https://doi.org/10.1002/fsn3.3757 |
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