1. Mix the sodium carboxymethyl cellulose directly with water to prepare a paste-like glue solution, and then set aside
When configuring the sodium carboxymethyl cellulose paste, first add a certain amount of clean water into the batching tank with a stirring device, and when the stirring device is turned on, sprinkle the sodium carboxymethyl cellulose slowly and evenly to the In the batching tank, keep stirring to make the sodium carboxymethyl cellulose and water completely fuse, and the sodium carboxymethyl cellulose can be fully melted. When dissolving sodium carboxymethyl cellulose, the reason why it should be evenly distributed and constantly stirred is to prevent the occurrence of agglomeration and agglomeration when the sodium carboxymethyl cellulose meets water, and reduce the carboxymethyl cellulose. The problem of sodium dissolution" and increase the dissolution rate of sodium carboxymethyl cellulose. The stirring time is not the same as the time for the sodium carboxymethyl cellulose to completely melt. They are two concepts. Generally speaking, the stirring time is much shorter than the time required for the complete melting of the sodium carboxymethyl cellulose. The time required depends on the specific situation. The basis for determining the stirring time is: when the sodium carboxymethyl cellulose is uniformly dispersed in the water and there is no obvious large agglomerate, the stirring can be stopped, and the sodium carboxymethyl cellulose and water are allowed to stand still. Infiltrate and merge with each other. The basis for determining the time required for the complete dissolution of sodium carboxymethyl cellulose is as follows:
(1) Sodium carboxymethyl cellulose and water are completely bonded, and there is no solid-liquid separation between the two;
(2) The mixed paste is in a uniform state, and the surface is flat and smooth;
(3) The color of the mixed paste is close to colorless and transparent, and there are no granular objects in the paste. From the time when the sodium carboxymethyl cellulose is put into the mixing tank and mixed with water, until the sodium carboxymethyl cellulose is completely dissolved, the time required is between 10 and 20 hours.
2. The sodium carboxymethyl cellulose is first mixed with dry raw materials such as white sugar in the form of a dry method, and then poured into water to dissolve.
During operation, first put the sodium carboxymethyl cellulose and dry raw materials such as white sugar in a certain ratio in a stainless steel mixer, close the top cover of the mixer, and keep the materials in the mixer in a sealed state. Then, turn on the mixer to fully mix the sodium carboxymethyl cellulose and other raw materials. Then, sprinkle the mixed sodium carboxymethyl cellulose mixture slowly and evenly into the mixing tank filled with water, and stir continuously. The subsequent operations can refer to the first dissolution method mentioned above.
3. When using sodium carboxymethyl cellulose in liquid or pulpy foods, it is best to homogenize the mixture in order to obtain a more delicate tissue state and stabilization effect.
The pressure and temperature used during homogenization should be determined according to the characteristics of the material and the product quality requirements.
4. After the sodium carboxymethyl cellulose is formulated into an aqueous solution, it is best to store it in ceramic, glass, plastic, wooden and other types of containers. Metal containers, especially iron, aluminum, and copper containers are not suitable for storage.
Because, if the sodium carboxymethyl cellulose aqueous solution is in contact with the metal container for a long time, it will easily cause the problems of deterioration and viscosity reduction. When the aqueous solution of sodium carboxymethyl cellulose coexists with lead, iron, tin, silver, aluminum, copper and certain metal substances, a precipitation reaction will occur, reducing the actual quantity and quality of sodium carboxymethyl cellulose in the solution. If it is not necessary for production, try not to mix calcium, magnesium, salt and other substances in the sodium carboxymethyl cellulose aqueous solution. Because, when the sodium carboxymethyl cellulose aqueous solution coexists with calcium, magnesium, salt and other substances, it will reduce the viscosity of the sodium carboxymethyl cellulose solution.
5. The prepared sodium carboxymethyl cellulose aqueous solution should be used up as soon as possible.
If the sodium carboxymethyl cellulose aqueous solution is stored for a long time, it will not only affect the adhesive properties and stability of the sodium carboxymethyl cellulose, but also suffer from microorganisms and pests, thereby affecting the sanitary quality of the raw materials. However, some thickeners are dextrins and modified starches produced by starch hydrolysis. They are non-toxic and harmless, but they are as easy to raise blood sugar as white sugar, and may even cause more severe blood sugar reactions. Some consumers have increased blood sugar after drinking sugar-free yogurt, which is probably caused by thickeners, not because of the inherent lactose content in milk, because natural lactose does not cause a rapid increase in blood sugar. Therefore, before buying sugar-free products, be sure to read the ingredient list to prevent the influence of thickeners on blood sugar.