DOI: 10.36347/sjahss.2017.v05i02.010

Pages: 123-128

Twenty seven authentic samples of Gum Habeil were collected from bark of Combretum glutinosum trees in Blue Nile State - Sudan. Various physicochemical methods, differential scanning calorimetry (DSC), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FT-IR) were applied to characterize this type of gum. Physicochemical analysis exhibited that the average values of Moisture, Ash, pH, Water Holding Capacity, Refractive index, equivalent conductivity, acid equivalent weight , total uronic acid of the gum , Nitrogen and Protein content are 9.88%, 4.32 %, 4.79, 63.03 %, 1.29 , 354.11sg-1cm2, 1291.71, 15.54 %, 0.198 % and 1.316 % respectively. Intrinsic viscosity of freeze dried soluble part ranged from 0.630 to 0.839 dl / g with an average value of 0.691 dl / g, while Intrinsic viscosity of freeze dried deacetylated gum ranged from 1.09 to 1.390 with an average value 1.33 dl / g respectively.