Is food thickener harmful to human body? What are the main ingredients?

　　Food thickener usually refers to a macromolecular substance that can be dissolved in water and fully hydrated to form a viscous and greasy solution under certain conditions, also known as food gum. It is an important food additive widely used in food industry. Thickeners can effectively improve the quality and performance of food. Stabilizers can change the sedimentation rate of protein, make it have a better suspension effect and prolong the shelf life. Qingdao Nanshan Biotechnology Co., Ltd. clearly tells everyone that food additives do exist in milk at present.
　

　　Stabilizers and thickeners in yogurt usually refer to macromolecular substances that can be dissolved in water and fully hydrated under certain conditions to form a viscous and greasy solution, also known as food gum. It is an important food additive widely used in food industry. Thickeners can effectively improve the quality and performance of food. Stabilizers can change the sedimentation rate of protein, so that it has a good suspension effect and prolong the shelf life.

　　At present, there are additives added to yogurt, which will not do harm to human body as long as they are added in moderation.

　　As a water-soluble food additive, CMC has the functions of thickening, stabilizing, emulsifying and shaping, and is widely used in food industry. CMC is the abbreviation of CarboxyMethylCellulose in English, and its Chinese name is sodium carboxymethyl cellulose, and its molecular formula is C6H7 (OH) 2ochcoona, which is a fiber derivative obtained by chemical modification of natural cellulose. It is one of the important water-soluble polymers. CMC has excellent properties such as thickening, dispersing, suspending, bonding, film forming, colloid protection and moisture protection, and is widely used in food, medicine, toothpaste and other industries. CMC is a white or yellowish powder, granular or fibrous solid, odorless, tasteless and non-toxic. CMC is a macromolecular chemical substance that can absorb water and swell, and when it swells in water, it can form a transparent viscous glue solution. When it swells in acid and alkali, it can form a transparent viscous glue solution.

　　CMC has moisture absorption characteristics, and its moisture absorption degree is related to atmospheric temperature and relative humidity. When it reaches equilibrium, it will no longer absorb moisture. CMC aqueous solution has excellent properties such as adhesion, thickening, emulsification, suspension, film formation, colloid protection, moisture retention, enzymolysis resistance and metabolic inertia. When CMC aqueous solution meets with tin, silver, aluminum, lead, iron, copper and some heavy metals, precipitation reaction will occur. When CMC aqueous solution coexists with calcium, magnesium and salt, it will not produce precipitation, but will reduce the viscosity of CMC aqueous solution.

　　Edible CMC has the functions of thickening, emulsifying, shaping, water retention and stability. Adding CMC to food can reduce the production cost, improve the food grade and taste, and prolong the shelf life of food. It is an ideal food additive in the food industry and can be widely used in various solid and liquid beverages, canned food, sweets, cakes, meat products, biscuits, instant noodles, rolled noodles, instant cooked food, quick-frozen snacks and snacks.

　　Acidic milk beverage is a blended milk beverage with sweet and sour taste. It is a beverage made of water, milk (or milk powder and fermented yogurt), emulsion stabilizer, citric acid, fruity essence and synthetic pigment. CMC can stabilize the tissue state of the beverage, and has the characteristics of preventing precipitation and delamination, improving taste and improving high temperature resistance in the production process. Some enterprises compound CMC with other thickening stabilizers and emulsifiers for the production of acidic milk drinks. When using CMC in acidic milk drinks, acid-resistant CMC, models FM9 and FFH9, can be selected, and the consumption is calculated according to 0.4% ~ 0.5% of the total amount of materials. In the feeding process, the CMC aqueous solution is first mixed with the raw materials in the batching tank, and then the citric acid solution is slowly added with constant stirring.

　　Usage and taboo of CMC:

　　1. Mix CMC directly with water to prepare a paste-like glue solution for later use. When preparing CMC paste, first add a certain amount of clean water into the batching tank with a stirring device. When the stirring device is turned on, slowly and evenly sprinkle CMC into the batching tank without stopping stirring, so that CMC and water can be completely blended and CMC can be fully dissolved. When dissolving CMC, it is necessary to evenly sprinkle and continuously stir. The purpose is to "prevent the CMC from clumping and caking when it meets water, so as to reduce the dissolving amount of CMC" and improve the dissolving speed of CMC. The stirring time is different from the time when CMC is completely dissolved, and they are two concepts. Generally speaking, the stirring time is much shorter than the time required for CMC to be completely dissolved, which depends on the specific situation.

　　The basis for determining the stirring time is as follows: when CMC is evenly dispersed in water and there is no obvious big lump, the stirring can be stopped, so that CMC and water can penetrate and blend with each other in a static state. The basis for determining the time required for CMC to completely dissolve is as follows: (1)CMC and water are completely bonded, and there is no solid-liquid separation between them; (2) The mixed paste is uniform and the surface is smooth; (3) The color of the mixed paste is close to colorless and transparent, and there are no granular objects in the paste. It takes 10 ~ 20 hours from the time when CMC is put into the batching tank and mixed with water to the time when CMC is completely dissolved.

　　2. Mix CMC with dried raw materials such as white sugar in a dry way, and then put it into water for dissolution. In operation, put CMC with dried raw materials such as white sugar in a stainless steel mixer according to a certain proportion, close the top cover of the mixer to make the materials in the mixer in a closed state. Then, start the mixer to fully mix CMC with other raw materials. Then, slowly and evenly spread the mixed CMC mixture into the batching tank filled with water, and keep stirring.

　　When using CMC in liquid or slurry food, it is best to homogenize the mixed materials to obtain a more delicate structure and stable effect. The pressure and temperature used in homogenization depend on the characteristics of the materials and the quality requirements of the products. After preparing CMC into aqueous solution, it is best to store it in containers such as ceramics, glass, plastic and wood, but not in metal containers, especially those made of iron, aluminum and copper.

　　Because, if CMC aqueous solution contacts with metal containers for a long time, it will easily lead to deterioration and viscosity reduction. When CMC aqueous solution coexists with lead, iron, tin, silver, aluminum, copper and some metal substances, it will produce precipitation reaction, which will reduce the actual quantity and quality of CMC in the solution. If it is not necessary for production, try not to mix calcium, magnesium, salt and other substances into CMC aqueous solution. Because CMC aqueous solution and calcium, magnesium, salt and other substances. It will reduce the viscosity of CMC solution. The prepared CMC solution should be used up as soon as possible. If the CMC solution is stored for a long time, it will not only affect the adhesive performance and stability of CMC, but also be invaded by microorganisms and insects, thus affecting the sanitary quality of raw materials.

　　However, some thickeners are dextrin and modified starch produced by starch hydrolysis, which are harmless in themselves, but they are as easy to raise blood sugar as sugar, and may even lead to a more violent blood sugar reaction. Some consumers' blood sugar rises after drinking sugar-free yogurt, which is probably caused by thickeners, rather than the inherent lactose in milk, because natural lactose does not cause a rapid increase in blood sugar. Therefore, before buying sugar-free products, we must read the ingredient list carefully and beware of the influence of thickeners on blood sugar.