{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,10]],"date-time":"2026-11-10T03:16:30Z","timestamp":1794280590368,"version":"4.9.0"},"reference-count":46,"publisher":"Springer Science and Business Media LLC","issue":"1","license":[{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T00:00:00Z","timestamp":1764115200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"funder":[{"DOI":"10.13039\/100000865","name":"Bill and Melinda Gates Foundation","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100000865","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Sci Rep"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>\n                    Yam (\n                    <jats:italic>Dioscorea<\/jats:italic>\n                    spp.) is a tuber-producing crop and an important staple in the tropics and subtropics, valued for its nutritional, health and sociocultural relevance. However, there is limited awareness of its nutritional and health benefits among local communities in eastern Democratic Republic of Congo (DRC), prompting its underutilization. This study aimed to (a) document the diversity of cultivated and semi-domesticated yam species in eastern DRC; (b) explore indigenous knowledge on their nutritional and health benefits; and (c) assess the nutrient composition and antioxidant activity of major yam species consumed in the region. Data collection involved ethno-botanical surveys, plant specimen collections, interviews with 123 community members, and physicochemical profiling using standard analytical methods. Ten yam species were documented in eastern DRC, including two domesticated species, with distribution patterns shaped by biophysical conditions and cultural factors. Species richness was higher in highland forest zones compared to lowland savannas. Local communities use yam to treat more than 15 health conditions, including stomach pains, food intoxications, skin wounds and infections, reproductive abnormalities, immune system deficiency, respiratory challenges, diabetics, etc. Physicochemical composition analysis revealed interspecific variations potentially contributing to their nutritional and therapeutic relevance by local communities. Notably,\n                    <jats:italic>Dioscorea dumetorum<\/jats:italic>\n                    tubers exhibited the highest protein content (8.7\u00a0g\/100\u00a0g) and potassium concentration (240.2\u00a0mg\/100\u00a0g),\n                    <jats:italic>D. praehensilis<\/jats:italic>\n                    was rich in carbohydrates (80.9\u00a0g\/100\u00a0g), and\n                    <jats:italic>D. bulbifera<\/jats:italic>\n                    had highest calcium concentration (40.1\u00a0mg\/100\u00a0g), underscoring the yam nutritional significance in the local diet. All yam species encompassed saponins, terpenoids, and alkaloids, though\n                    <jats:italic>D. praehensilis<\/jats:italic>\n                    and purple\n                    <jats:italic>D. alata<\/jats:italic>\n                    had the highest antioxidant activity that exceeded 90% inhibition level. These findings provide valuable insights on yam diversity and their potential to sustain nutritious healthy diets in eastern DRC.\n                  <\/jats:p>","DOI":"10.1038\/s41598-025-26046-5","type":"journal-article","created":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T13:14:12Z","timestamp":1764162852000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Nutritional and health benefits of wild and cultivated yam (Dioscorea spp.) species consumed in eastern Democratic Republic of Congo"],"prefix":"10.1038","volume":"15","author":[{"given":"Jean M.","family":"Mondo","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alphonse Z.","family":"Balezi","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4789-4040","authenticated-orcid":false,"given":"Jackson","family":"Ishara","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean-Claude I. Mwanga","family":"Mwanga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Esther R.","family":"Matendo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Denis-Gilbert N.","family":"Bagaya","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"G\u00e9ant B.","family":"Chuma","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paterne A.","family":"Agre","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Patrick","family":"Adebola","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Asrat","family":"Asfaw","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2025,11,26]]},"reference":[{"key":"26046_CR1","unstructured":"Coursey, D. G. Yams. An account of the nature, origins, cultivation and utilisation of the useful members of the Dioscoreaceae. Rhind, D., Ed.; Longmans, Green and Co LTD: London, UK. (1967)."},{"issue":"1","key":"26046_CR2","doi-asserted-by":"publisher","first-page":"28","DOI":"10.1016\/j.jef.2017.02.004","volume":"4","author":"JE Obidiegwu","year":"2017","unstructured":"Obidiegwu, J. E. & Akpabio, E. M. The geography of Yam cultivation in Southern nigeria: exploring its social meanings and cultural functions. J. Ethnic Foods. 4 (1), 28\u201335. https:\/\/doi.org\/10.1016\/j.jef.2017.02.004 (2017).","journal-title":"J. Ethnic Foods"},{"issue":"3","key":"26046_CR3","doi-asserted-by":"publisher","first-page":"474","DOI":"10.1111\/pbr.12783","volume":"139","author":"K Darkwa","year":"2020","unstructured":"Darkwa, K., Olasanmi, B., Asiedu, R. & Asfaw, A. Review of empirical and emerging breeding methods and tools for Yam (Dioscorea spp.) improvement: status and prospects. Plant. 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Front. Pharmacol. 11, 496. https:\/\/doi.org\/10.3389\/fphar.2020.00496 (2020).","journal-title":"Front. Pharmacol."},{"key":"26046_CR46","doi-asserted-by":"publisher","first-page":"1553876","DOI":"10.3389\/fsufs.2025.1553876","volume":"9","author":"JM Mondo","year":"2025","unstructured":"Mondo, J. M. et al. Yam urban market characteristics and consumer preferences in Bukavu City, Eastern DR congo. Front. Sustainable Food Syst. 9, 1553876. https:\/\/doi.org\/10.3389\/fsufs.2025.1553876 (2025).","journal-title":"Front. Sustainable Food Syst."}],"container-title":["Scientific Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-26046-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-26046-5","content-type":"text\/html","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-26046-5.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,11,26]],"date-time":"2025-11-26T13:14:17Z","timestamp":1764162857000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.nature.com\/articles\/s41598-025-26046-5"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,11,26]]},"references-count":46,"journal-issue":{"issue":"1","published-online":{"date-parts":[[2025,12]]}},"alternative-id":["26046"],"URL":"https:\/\/doi.org\/10.1038\/s41598-025-26046-5","relation":{},"ISSN":["2045-2322"],"issn-type":[{"value":"2045-2322","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,11,26]]},"assertion":[{"value":"5 March 2025","order":1,"name":"received","label":"Received","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"27 October 2025","order":2,"name":"accepted","label":"Accepted","group":{"name":"ArticleHistory","label":"Article History"}},{"value":"26 November 2025","order":3,"name":"first_online","label":"First Online","group":{"name":"ArticleHistory","label":"Article History"}},{"order":1,"name":"Ethics","group":{"name":"EthicsHeading","label":"Declarations"}},{"value":"The authors declare no competing interests.","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}},{"value":"Research was performed in accordance with the Declaration of Helsinki and approved by the UEA Interdisciplinary Centre of Ethical Research (CIRE), Ref: CNES 039\/DPSK\/322PP\/2023. We obtained verbal informed consent from all resource-persons and community members before interviews after ensuring the confidentiality in use of data collected and explaining the study objectives, as approved and directed by the above Institutional Review Board. Additionally, consent was secured from the informants for the publication of the individual data gathered from them. Plant materials were collected under the Nagoya Protocol on Access and Benefit-sharing and were only used for research purposes.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval and consent to participate"}},{"value":"\u201cNot applicable\u201d. There is no third party data. It is our original research data, all concerned individual authors have agreed to the publication of the outcome of this study as stated above under ethical consideration and authors\u2019 contribution.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}}],"article-number":"42131"}}