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

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    U16ArtAlamuCharacterizationInthomNodev.pdf (187.9Kb)
    Date
    2016
    Author
    Alamu, E.O.
    Maziya-Dixon, B.
    Ferede-Menkir, R.
    Popoola, I.
    Asiedu, Robert
    Gondwe, T.N.P.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Twenty-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).
    https://dx.doi.org/10.12691/jfnr-4-10-2
    Multi standard citation
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/1323
    Digital Object Identifier (DOI)
    https://dx.doi.org/10.12691/jfnr-4-10-2
    IITA Subjects
    Genetic Improvement; Yam
    Agrovoc Terms
    Yams; Carotenoids; Provitamins; Dioscorea Dumetorum; Genotypes
    Regions
    Africa; West Africa
    Countries
    Nigeria
    Journals
    Journal of Food and Nutrition Research
    Collections
    • Journal and Journal Articles4835
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