Browsing by Author "Ijabadeniyi, O.A."

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    Influence of extraction methods on functional properties of protein concentrates prepared from South Africa Bambara groundnut landraces
    (Institute of Food Science and Technology United Kingdom, 2015) Arise, A.K.; Amonsou, E.O.; Ijabadeniyi, O.A.
    Functional properties of protein concentrates prepared from three bambara groundnut landraces using acid precipitation and salt solubilisation methods were evaluated. The protein content of bambara grains (26–27%) was similar for the three landraces. The acid precipitation gave a much higher yield of protein concentrates (52%), which were also high in protein (79%) compared to the salt solubilisation method (yield: 25%, protein content: 57%). Functional properties of proteins were more influenced by the methods of preparation rather than the landraces. Protein concentrate prepared by salt solubilisation method showed higher emulsifying (63–66%), foaming (53–57%), water (1.4–2.0 mg mL 1) and oil absorption properties (2.2–2.6 mg mL 1) than the acid-precipitated concentrates (53–57%, 63–66%, 2.0– 2.7 mg mL 1, 1.4–1.7 mg mL 1). The foaming capacity and stability of all the protein concentrates decreased with increasing pH from 3 to 8. Salt solubilisation may be the most appropriate method for the enhanced functionality and utilisation of bambara groundnuts’ protein concentrates