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Samples of Gum Arabic (Acacia Senegal) different colors were collected from different locations and tree ages, North, west and middle Kordofan state. Sudan. Sorted to four, color categories Mixed, Glassy, Pink and Reddish. Samples were prepared by milling and purification. Samples subjected to Physicochemical investigations' and tests carried out and most properties were determined, results obtained were( the mean value of triplicates) indicated no considerable differences between the four samples, as follows:, moisture content, 11.2%, 11.1%, 11.1% and, 11.4% respectively. PH value 4.2, 4.3, 4.07, and 4.21 respectively, Electric conductivity EC, 2.41, 2.40, 2.39, and 2.44. Specific gravity, 1.0078, 1.0057, 1.0599 and 1.0110. Specific optical rotation readings obtained were all the same, table No.: 7. the mean value was (-31.9). Refractive index degrees were all the same (1.3453), solubility revealed values were almost the same results, 99.5, 99.45, 99.50, 99.60. Viscosity, 20.8, 20.0, 19.9, 20.8. Emulsifying stability, 0.9744, 0.9989, 0.9685, 0.9600 CP respectively, nitrogen content 0.368, 0.366, 0.369, 0.363 and protein content = (N2 *6.25),total ash content in the study also showed no considerable differences between the four samples 2.61,%, 2.62 ,%, 2.58%, and 2.62% or even with the mixed one. On the other hand Ash content was measured. All results readings were in the acceptable range of FAO/WHO ANS SSMO specifications and of the most workers. Comparing most of the results and parameters investigated no considerable differences between the four samples of the different color degrees, mixed, glassy, pinky and reddish, regarding the mixed color sample as blank as (it represents) the other three samples. So from the results obtained we can say no significant or considerable effect for different gum colors on physicochemical and functional properties.

Twenty-four (24) samples of gum Arabic Acacia Senegal L, wild (raw) collected from north and west Kordofan State, sandy soils, season 2011. 5,7,10,15, and 20 years of tree ages. Samples gathered, mixed, then sorted by color to four (4) categories, Mixed, Glassy, Pink and Reddish, to obtain fine powder particles For more purification and to remove any impurities barks, sand, filths or any other contaminants. Samples were then dissolved by distilled water and filtered with Buchner funnel under vacuum pump by filter paper no: 1. The four samples dried to different temperatures 50,55,60,65,80 and °C at 16,18,20 and 24 hrs in the drying (fan) oven. The particle size of nodule samples was reduced to pass 0.5 mm, mesh screen-in vitro at 30 C°. Then weighed after each process to have the original wt 9.945 g (10g - 0.055 g impurities). The samples were then kept in tight glasses container for further analysis. The optimum useful procedure found is, 10% conc, and 55°C degrees for 24 hrs time, to obtain the dry original 10 gm sample weight. Comparing moisture content, pH, Electric conductivity, viscosity, specific gravity, specific optical rotation, refractive index, and apparent color, similar characteristics and properties were obtained with 99.45% purity, with no significant differences to the original samples. At last loss wt of impurities and combined colloids was determined which found is about 0.55% in average, as mean of the triplicate tests of the four samples.