作者: Ahmed Elhenawy , Elgaili. A. Omer , Abdulaziz. A. Alomari , Mohammed. E. Osman
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摘要: Acacia polyacantha gum(Kakamut gum) samples were collected as natural exudates, from three different locations in Sudan named Abugarin, Gargadah and Layoon forest. Physicochemical properties of gum studied (moisture , ash ,nitrogen protein, specific rotation, intrinsic viscosity refractive index, equivalent weight, pH uronic acid reducing sugars . Results showed significant differences within each location most parameters studied, index values found to be constant all (1.3337) The effect on the properties was analysis generally insignificant difference (p≥ 0.05) except moisture differences. general characteristics gum might described a mean value studied follows ; 8.3% moisture, 2.9% ,0.35%nitrogen, 2.30% protein,-16.8 o rotation,10.3ml/g viscosity, 4.9 1348.68 weight, 14.5%uronic acid, 1.3337 index 0.20%reducing sugar UV absorption spectra determined maximum absorption points same ranging between wavelength (208 211nm) cationic composition also results that sodium(43.075ppm) has highest followed by iron(27.667ppm) ,zinc(14.297ppm),nickel(4.650ppm),copper(4.025),manganese(2.645ppm),calcium(1.284ppm) trace amount lead(0.667ppm),potassium(0.344ppm)andmagnesium(0.274ppm). Accordingly, these parameters, therefore, cannot be recommended qualifying indices.