Sweet potato soluble starch
Soluble starch is a kind of white or light yellow powder, odorless and tasteless, insoluble in cold water, it can be a transparent solution in hot water, and it does not freeze after cooling. Generally it can be made of starch from rice, corn, millet and potatoes. Soluble starch, but soluble starch made from sweet potato starch has the best quality. The sweet potato starch has relatively coarse particles, and the outer film is easily broken when it is hydrolyzed, and it is easy to dry. Its processing is:
Take a certain amount of sweet potato starch through 80 mesh fine sieves, place in a big jar, add 8%-9% hydrochloric acid, stir the solution into a thin paste, immersed in 40-45 degrees Celsius for 24 hours, or place at room temperature 6 to 7 days are also available. Stir once every 2 hours. After the immersion is completed, the upper supernatant of the cylinder is drained by siphoning and then washed several times while stirring constantly until chlorine ion is not contained. Then the mixture is dehydrated and dried, and then ground with a stone mill. The weight is 100-120 mesh, which is soluble starch.
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