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    Physicochemical and pasting properties of starch extracted from eleven sweetpotato varieties

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    S10ArtTsakamaPhysicochemicalNothomDev.pdf (118.1Kb)
    Date
    2010-10
    Author
    Tsakama, M.
    Mwangwela, A.M.
    Manani, T.A.
    Mahungu, N.M.
    Type
    Journal Article
    Target Audience
    Scientists
    Metadata
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    Abstract/Description
    Physicochemical and pasting properties of starch extracted from eleven sweetpotato varieties wereevaluated. Relationships between starch properties were determined using correlation analysis.Significant differences were revealed among the physicochemical properties such as amylose, pH,granule size and size distribution. According to the Rapid visco analyzer (RVA) viscosity profiles, allstarches exhibited a type A profile which is characterized by high peak viscosity followed by majorbreakdown. However, significant differences were observed in individual pasting parameters such aspasting time, hot paste viscosity, cold paste viscosity, stability ratio, setback ratio and breakdown. Theresults revealed that variety has an effect on composition and pasting properties of sweetpotato starch.Correlations developed in this study were useful in predicting starch functionality when applied in foodindustry.
    Permanent link to this item
    https://hdl.handle.net/20.500.12478/2639
    Agrovoc Terms
    Sweetpotato Starch; Physicochemical; Pasting; Viscosity
    Regions
    Africa; Southern Africa
    Countries
    Malawi
    Journals
    African Journal of Food Science and Technology
    Collections
    • Journal and Journal Articles4835
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