Structural, Physicochemical, and Digestion Properties of Sweetpotato Starches

cg.authorship.typesCGIAR and developing country instituteen
cg.contributor.affiliationSouth Dakota State Universityen
cg.contributor.affiliationQassim Universityen
cg.contributor.affiliationInternational Potato Centeren
cg.contributor.affiliationNorth Carolina State Universityen
cg.contributor.affiliationIndiana University Health Pathology Laboratoryen
cg.contributor.affiliationRutgers Universityen
cg.coverage.countryUganda
cg.coverage.iso3166-alpha2UG
cg.coverage.regionSub-Saharan Africa
cg.creator.identifierMukani Moyo: 0000-0001-5658-2669en
cg.creator.identifierTawanda Muzhingi: 0000-0002-2432-2165en
cg.creator.identifierMariam Nakitto: 0000-0002-4140-7216en
cg.creator.identifierSrinivas Janaswamy: 0000-0002-5422-0493en
cg.howPublishedFormally Publisheden
cg.identifier.doihttps://doi.org/10.1016/j.fbio.2025.106755en
cg.isijournalISI Journalen
cg.issn2212-4306en
cg.journalFood Bioscienceen
cg.reviewStatusPeer Reviewen
cg.subject.actionAreaGenetic Innovation
cg.subject.cipSWEETPOTATOESen
cg.subject.cipGENETIC RESOURCESen
cg.subject.cipBREEDINGen
cg.subject.cipNUTRITIONen
cg.subject.impactAreaNutrition, health and food security
cg.subject.sdgSDG 2 - Zero hungeren
dc.contributor.authorAlayouni, R.en
dc.contributor.authorMuzhingi, T.en
dc.contributor.authorNakitto, M.en
dc.contributor.authorBaride, A.en
dc.contributor.authorYao, T.en
dc.contributor.authorJanaswamy, S.en
dc.date.accessioned2025-05-05T21:16:36Zen
dc.date.available2025-05-05T21:16:36Zen
dc.identifier.urihttps://hdl.handle.net/10568/174428
dc.titleStructural, Physicochemical, and Digestion Properties of Sweetpotato Starchesen
dcterms.abstractSweetpotato starch has significant nutritional value. However, there is considerable variability in starch characteristics among different sweetpotato cultivars, necessitating a deeper understanding of the inherent varietal differences. This study compares the structural and physicochemical properties of starches from seven sweetpotato varieties: NASPOT8, NASPOT10 O, NASPOT11, NASPOT12 O, NASPOT13 O, Kakamega, and Ejumula, cultivated in Uganda. The results suggest that sweetpotato starch granules are irregularly elliptical. The amylose content ranges from 20.87% to 35.40%, with low starch damage of 0.19% to 0.53%. The peak viscosity, final viscosity, breakdown viscosity, and setback viscosity vary from 9973 cp to 19258 cp, 2190 cp to 5901 cp, 6791 cp to 14195 cp, and 272 cp to 1501 cp, respectively. X-ray diffraction analysis reveals Cc-type starch with a relative crystallinity of 11.76% to 15.34%. The RDS, SDS, and RS amounts vary significantly (p<0.05) from 70.20% to 79%, 9.42% to 16.02%, and 7.72% to 15.48%, respectively. NASPOT8 has unique features among the seven varieties, including reduced pasting viscosity, higher gelatinization temperature, and lower digestibility. The findings provide valuable insights into using sweetpotato varieties grown in Uganda for various food and non-food applications.en
dcterms.accessRightsLimited 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.bibliographicCitationAlayouni, R.; Moyo, M.; Muzhingi, T.; Nakitto, M.; Baride, A.; Yao, T.; Janaswamy, S. 2025. Structural, physicochemical, and digestion properties of sweetpotato starches. Food Bioscience. ISSN 2212-4306. 106755. https://doi.org/10.1016/j.fbio.2025.106755en
dcterms.issued2025-05-04en
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.subjectsweet potatoesen
dcterms.subjectstarchen
dcterms.subjectvarietiesen
dcterms.subjectdigestibilityen
dcterms.subjectchemicophysical propertiesen
dcterms.typeJournal Article

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