Gum arabic may not readily entirely dissolve in cold water, what may be related with the actual acacia species from which the raw gum was collected, and with the processing steps that may have been taken to purify the gum or otherwise increase its commercial value. When in powder form, it may be easily dissolved in warm to boiling water. When presented as lumps or flakes, it may be found preferable to initially swell and hydrate the gum with a small quantity of cold water, to which is then added hot (to boiling) water while stirring ― but avoiding swirling, at it may induce foaming. After cooling to room temperature, a viscous and homogeneous aqueous solution should be obtained.
Gum arabic may not readily entirely dissolve in cold water, what may be related with the actual acacia species from which the raw gum was collected, and with the processing steps that may have been taken to purify the gum or otherwise increase its commercial value. When in powder form, it may be easily dissolved in warm to boiling water. When presented as lumps or flakes, it may be found preferable to initially swell and hydrate the gum with a small quantity of cold water, to which is then added hot (to boiling) water while stirring ― but avoiding swirling, at it may induce foaming. After cooling to room temperature, a viscous and homogeneous aqueous solution should be obtained.
I agree with Carlos that solubility of gum arabic is dependent on several factors. I found that gum arabic is readily soluble in water and does not form too viscous solution like guar gum or chia seed gum. However, if you allow hydration of polysaccharides overnight, the solubility is enhanced.
we used 5g Gum in 100ml DI water. but the solution is very very viscous and It was not flow readily. We examined with warm water but it became past form!!