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Test Item | Standard | Result |
Colour | White to brown yellow | White |
State | Granular or powder | Powder |
Loss on dry ,w/% | ≤10 | 5.91 |
Solubility | 1g gum arabic sample can be dissolved in 2ml water; can not be dissolved in ethanol | Passed |
optical rotation | Rotation of solution sourced from Acacia Senegal is left while solution sourced from Acacia Seyal is right. | Passed |
Viscosity(dry basis), mpa.s(25% solution 25℃)≥ | 50 | 85 |
ASH,w/% | ≤4 | 3.0 |
Acid-insoluble ash, w/% | ≤0.5 | 0.42 |
insolubles in acid,w/% | ≤1.0 | 0.67 |
Pb /(mg/kg) | ≤2.0 | <2 |
E.coli (MPN/g) | 3.0 | <3.0 |










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