Developing commercial-scale fresh sweetpotato root storage in tropical areas of sub-Saharan Africa

cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationUniversity of Greenwichen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.donorBill & Melinda Gates Foundationen
cg.coverage.countryKenya
cg.coverage.iso3166-alpha2KE
cg.coverage.regionSub-Saharan Africa
cg.creator.identifierTanya Stathers: 0000-0002-7767-6186en
cg.creator.identifierPenina Muoki: 0000-0002-8352-2183en
cg.creator.identifierJan Low: 0000-0001-8170-6045en
cg.identifier.doihttps://doi.org/10.1016/j.jspr.2024.102522en
cg.isijournalISI Journalen
cg.issn1879-1212en
cg.journalJournal of Stored Products Researchen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaResilient Agrifood Systems
cg.subject.cipSWEETPOTATOESen
cg.subject.cipNUTRITIONen
cg.subject.cipFOOD SECURITYen
cg.subject.cipCROP AND SYSTEMS SCIENCES CSSen
cg.subject.cipCLIMATE-SMART AGRICULTUREen
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 2 - Zero hungeren
cg.subject.sdgSDG 3 - Good health and well-beingen
cg.subject.sdgSDG 9 - Industry, innovation and infrastructureen
cg.subject.sdgSDG 12 - Responsible consumption and productionen
cg.volume111en
dc.contributor.authorStathers, T.en
dc.contributor.authorOtieno, B.en
dc.contributor.authorKipkoech, B.en
dc.contributor.authorRees, D.en
dc.contributor.authorPrecoppe, M.en
dc.contributor.authorMuoki, Penina Ngusyeen
dc.contributor.authorLow, Jan W.en
dc.date.accessioned2025-01-27T20:51:39Zen
dc.date.available2025-01-27T20:51:39Zen
dc.identifier.urihttps://hdl.handle.net/10568/170123
dc.titleDeveloping commercial-scale fresh sweetpotato root storage in tropical areas of sub-Saharan Africaen
dcterms.abstractAs food systems across sub-Saharan Africa transform and urbanise, demand for all-year-round supplies for the raw materials is increasing. This demand can be met through combinations of staggering crop production, purchasing from diverse geographical areas, and storing produce. Focusing on the increasing use of orange-fleshed sweetpotato root puree in vitamin-A-rich food products, we ran a series of storage trials in Kenya to investigate whether commercial-scale fresh orange-fleshed sweetpotato storage could provide a stable supply of roots for puree production. The trials studied storage of roots of two sweetpotato varieties (Kabode and Vita), using washed versus unwashed roots in wooden crates, and mains grid power versus off-grid solar-powered storerooms for four-months. Following curing at 30 °C, roots were stored at 20–23 °C, and quality assessed. After four months storage, 54–59 % (Kabode) and 63–83 % (Vita) of initial root weight remained suitable for processing into puree. However, weevil and sprouting problems occurred. Vita outperformed Kabode for most criteria. Neither root washing nor different storerooms had a consistent effect on root quality. Subsequent trials in a solar-powered store investigated if lower temperatures of ≤15 °C and 90 % rh, with pre-harvest dehaulming could reduce weevil development, sprouting and rotting in stored roots. While control of sprouting and weevil damage was achieved and dehaulming improved stored root quality, while washing reduced it, high incidence of rotting and root weight loss occurred. Increasing store ventilation did not reduce rotting. We conclude that further trials with well controlled storage environments are required to understand how raw root quality, dehaulming, harvesting and handling practices, curing conditions, air exchange, and packaging materials affect quality during fresh root storage.en
dcterms.accessRightsOpen Access
dcterms.audienceAcademicsen
dcterms.audienceCGIARen
dcterms.audienceDevelopment Practitionersen
dcterms.audienceDonorsen
dcterms.audienceExtensionen
dcterms.audienceFarmersen
dcterms.audienceGeneral Publicen
dcterms.audienceNGOsen
dcterms.audiencePolicy Makersen
dcterms.audienceScientistsen
dcterms.bibliographicCitationStathers, T.; Otieno, B.; Kipkoech, B.; Rees, D.; Precoppe, M.; Muoki, P.; Low, J. 2024. Developing commercial-scale fresh sweetpotato root storage in tropical areas of sub-Saharan Africa. Journal of Stored Products Research. 111. ISSN 1879-1212. 15 p. https://doi.org/10.1016/j.jspr.2024.102522en
dcterms.extent15 p.en
dcterms.issued2025-01-16en
dcterms.languageen
dcterms.licenseCC-BY-4.0
dcterms.subjectsweet potatoesen
dcterms.subjectstorageen
dcterms.subjectpostharvest technologyen
dcterms.subjectretinolen
dcterms.subjectfood securityen
dcterms.typeJournal Article

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