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Microstructural and chemical properties of gari and eba: Food products from cassava (Manihot esculenta Cranz)

    1. [1] Durban University of Technology

      Durban University of Technology

      Ethekwini, Sudáfrica

    2. [2] Veritas University

      Veritas University

      Nigeria

  • Localización: Food science and technology international = Ciencia y tecnología de alimentos internacional, ISSN-e 1532-1738, ISSN 1082-0132, Vol. 28, Nº 2, 2022, págs. 107-117
  • Idioma: inglés
  • Texto completo no disponible (Saber más ...)
  • Resumen
    • The microstructure, elemental distribution and rheological behavior of two varieties of gari and their doughs (eba) were investigated. SEM analysis revealed a concave structure with fibre-strands, which were altered after processing to eba. Gari nanostructures which were analyzed with TEM were not affected when processed to eba. SEM-EDX microanalysis revealed the presence of magnesium, potassium, calcium, manganese, iron, and cobalt for both varieties, which were altered after processing. Rheological analysis revealed increases in storage modulus, with concomitant loss factor for both varieties. Their viscosity decreased with increasing shear rate. GC-MS analysis revealed the presence of sugar, fatty acids, and steroids in both varieties, which were also affected after processing. Both varieties showed significant free radical scavenging activity which was not affected after processing. These results indicate that the conclave microstructure, elements and phytochemicals of both gari varieties are altered after processing to eba, with their nanostructure and antioxidant activity unaltered.


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