Sharing of dissolution methods for sodium alginate

Sodium alginate has been used as a thickener, stabilizer, emulsifier, etc. in food. However, it should be noted that the particle size of sodium alginate is relatively fine. If a large number of particles are added to water at once without stirring and dissolving, the outer layer will absorb water and form large blocks. However, the interior of the large blocks cannot be wetted, which can easily cause dissolution difficulties. Below, we will take you to learn about the four dissolution methods of sodium alginate, hoping to be helpful to you.

Manual operation is to first add enough water to the container (cylinder, jar, basin), and then slowly sprinkle dry sodium alginate while stirring with a wooden stick to avoid clumping as much as possible until it is completely dissolved. Using this method can accelerate the dissolution rate.

2. Mechanical stirring

Using a high-speed shear stirrer, the dry brown algae gel is quickly dispersed in water. However, it should be noted that the agitator should be placed in an off center position, and the blades of the agitator should be submerged below the liquid level to prevent excessive air from blowing in. Powdered brown algae gel should be slowly sprinkled onto the upper part of the vortex so that each particle can be wetted.

3. Dry mixed dispersion

When using sodium alginate as an additive, alginate can be mixed with miscible substances such as sugar and starch in a dry form to promote the diffusion of alginate in the solution. Then slowly add the mixture into the vortex generated by stirring, and it usually dissolves completely into a uniform colloid within a few minutes.

4. Liquid mixing dispersion

Under the conditions allowed by the formula, non aqueous solvents such as ethanol or vegetable oil can be used to grind alginate into a slurry in a non-aqueous solution, and then add the slurry to the stirred water.