Investigating manual sprout removal in stored yam: effect of tuber sizes on some physicochemical properties

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cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationNational Root Crops Research Institute, Nigeriaen
cg.contributor.affiliationUniversity of Nigeriaen
cg.contributor.affiliationUniversity of Greenwichen
cg.contributor.affiliationInternational Institute of Tropical Agricultureen
cg.contributor.crpRoots, Tubers and Bananas
cg.coverage.countryNigeria
cg.coverage.iso3166-alpha2NG
cg.coverage.regionAfrica
cg.coverage.regionWestern Africa
cg.creator.identifierNorbert Maroya: 0000-0002-7079-4729
cg.howPublishedFormally Publisheden
cg.identifier.iitathemeBIOTECH & PLANT BREEDING
cg.identifier.urlhttps://journalspress.com/investigating-manual-sprout-removal-in-stored-yam-effect-of-tuber-sizes-on-some-physicochemical-propertiesen
cg.issn2631-8490en
cg.issue4en
cg.journalLondon Journal of Research in Science: Natural and Formalen
cg.reviewStatusPeer Reviewen
cg.subject.iitaAGRONOMYen
cg.subject.iitaPLANT BREEDINGen
cg.subject.iitaPLANT PRODUCTIONen
cg.subject.iitaYAMen
cg.subject.impactAreaNutrition, health and food security
cg.subject.impactAreaPoverty reduction, livelihoods and jobs
cg.subject.sdgSDG 1 - No povertyen
cg.subject.sdgSDG 2 - Zero hungeren
cg.volume20en
dc.contributor.authorEtudaiye, H.A.en
dc.contributor.authorUvere, P.O.en
dc.contributor.authorRees, D.en
dc.contributor.authorAbayomi, L.en
dc.contributor.authorWestby, A.en
dc.contributor.authorMaroya, N.G.en
dc.contributor.authorUkpabi, U.J.en
dc.date.accessioned2022-01-10T09:20:34Zen
dc.date.available2022-01-10T09:20:34Zen
dc.identifier.urihttps://hdl.handle.net/10568/117398
dc.titleInvestigating manual sprout removal in stored yam: effect of tuber sizes on some physicochemical propertiesen
dcterms.abstractThe study focused on manual sprout removal and effect of tuber sizes on some physicochemical properties of the stored yams. Yam variety, Ameh (Dioscorea rotundata) with different tuber sizes ≤ 0.5 Kg, 0.6-0.9 Kg and ≥ 1.0 Kg for small (SS), medium (MS) and big(BS) sizes, respectively, were used. The primary nodal complex (PNC) was removed using three methods: hand picking, half cutting and full cutting. Tubers were stored on shelves for 16 weeks in a yam storage laboratory at National Root Crops Research Institute, Umudike, Nigeria. Physicochemical parameters determined were temperature, relative humidity, sprout count, weight loss (WL), dry matter (wet basis), starch yield, amylose, reducing sugars (TRS), water absorption capacity (WAC) and bulk density (BD). Weight loss significantly (p>0.05) increased with storage. The mean dry matter (DM) across sprout removal methods showed significant difference (p>0.05), and lowest in big tubers (30.77%). DM was lowest in control and hand picking at 16 weeks. Starch yield, amylose and TRS were highest in the MS tubers. Values of MS tubers for starch, amylose and TRS were 25.88%, 13.11% and 3.11%, respectively. Starch, amylose and sugars decreased with storage. There was a significant difference (p>0.05) in starch yield, amylose and sugars across tuber size and across storage period. Mean values of tubers for manual sprout removal methods during storage on BD and WAC were significant (p>0.05) and highest in BS tubers (0.47 g/ml BD and 2.00 g/ml WAC).en
dcterms.accessRightsOpen Access
dcterms.audienceScientistsen
dcterms.bibliographicCitationEtudaiye, H.A., Uvere, P.O., Rees, D., Abayomi, L., Westby, A., Maroya, N.G. & Ukpabi, U.J. (2020). Investigating manual sprout removal in stored yam: effect of tuber sizes on some physicochemical properties. London Journal of Research in Science: Natural and Formal, 20(4), 81-95.en
dcterms.descriptionOpen Access Articleen
dcterms.extent81-95en
dcterms.issued2020
dcterms.languageen
dcterms.licenseCC-BY-NC-4.0
dcterms.subjectyamsen
dcterms.subjectdioscorea rotundataen
dcterms.subjecttubersen
dcterms.subjectvarietiesen
dcterms.subjectstorageen
dcterms.subjectphysicochemical propertiesen
dcterms.typeJournal Article

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