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Characterization and classification of the provitamin A carotenoids of deep yellow-fleshed bitter yam (Dioscorea dumetorum) varieties

dc.contributor.authorAlamu, E.O.
dc.contributor.authorMaziya-Dixon, B.
dc.contributor.authorFerede-Menkir, R.
dc.contributor.authorPopoola, I.
dc.contributor.authorAsiedu, Robert
dc.contributor.authorGondwe, T.N.P.
dc.date.accessioned2019-12-04T11:04:03Z
dc.date.available2019-12-04T11:04:03Z
dc.date.issued2016
dc.identifier.citationAlamu E.O., Maziya-Dixon B., Ferede-Menkir R., Popoola I., Asiedu R. & Gondwe T. 2016. Characterization and classification of the provitamin A carotenoids of deep yellow-fleshed bitter yam (Dioscorea dumetorum) varieties. Journal of Food and Nutrition Research, 4(10), 640-645.
dc.identifier.issn2333-1119
dc.identifier.urihttps://hdl.handle.net/20.500.12478/1323
dc.descriptionOpen Access Journal
dc.description.abstractTwenty-two genotypes of deep yellow fleshed D. dumetorum were analysed for carotenoids using High Performance Liquid Chromatography (HPLC) and for similarities in their provitamin A characteristics using Cluster Analysis (CA). The contribution of each carotenoid to provitamin A content was investigated through correlation and regression analysis. Seven of the genotypes fell within the low provitamin A cluster with values from 2.26 µg g-1 to 7.74 µg g-1. Twelve genotypes were in the intermediate cluster with values between 8.56 µg g-1 and 11.20 µg g-1. Three genotypes were within the high cluster with values between 10.13 µg g-1 and 14.00 µg g-1. Trans-β-carotene-5,8 epoxide was a significant predictor (β1 = 0.773, p < 0.005) of provitamin A content of the D. dumetorum while trans-β-carotene was not a significant predictor (β2 = 0.593, p > 0.05).
dc.format.extent640-645
dc.language.isoen
dc.subjectYams
dc.subjectCarotenoids
dc.subjectProvitamins
dc.subjectDioscorea Dumetorum
dc.subjectGenotypes
dc.titleCharacterization and classification of the provitamin A carotenoids of deep yellow-fleshed bitter yam (Dioscorea dumetorum) varieties
dc.typeJournal Article
dc.description.versionPeer Review
cg.contributor.crpRoots, Tubers and Bananas
cg.contributor.affiliationInternational Institute of Tropical Agriculture
cg.contributor.affiliationSanta Monica College
cg.coverage.regionAfrica
cg.coverage.regionWest Africa
cg.coverage.countryNigeria
cg.authorship.typesCGIAR and advanced research institute
cg.iitasubjectGenetic Improvement
cg.iitasubjectYam
cg.journalJournal of Food and Nutrition Research
cg.howpublishedFormally Published
cg.accessibilitystatusOpen Access
local.dspaceid79142
cg.targetaudienceScientists
cg.identifier.doihttps://dx.doi.org/10.12691/jfnr-4-10-2


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