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About Sodium Alginate

Nowadays, Sodium Alginate is also used in the biological experiments for the immobilization of cells to obtain important products like alcohols, organic acids, etc.Sodium alginate is combined with calcium lactate or similar compound to create spheres of liquid surrounded by a thin jelly membrane as thickeners.Sodium Alginate is a natural amylose carbohydrate distilled from alga.As the natural cellulose, It slow the absorption of fatty sugar .and bilesalt , reduce serum cholesterol , triglyceride in the blood.

Sodium Alginate Application in the food:
Food grade sodium alginate in lieu of starch, gelatin stabilizers for ice cream, can control the formation of ice crystals to improve the taste of ice cream, but also the stability of the sugar ice cream, ice sherbet, frozen mixed drinks such as milk. Many dairy products, such as refined cheese, whipped cream, dry cheese such as the stabilizing effect of the use of sodium alginate to prevent food and packaging with adhesive, can be used as a dairy jewelry covering it to remain stable and to prevent icing cakes skin cracking. Sodium alginate for the salad (a salad) sauce, pudding (a dessert), jam, ketchup, and canned products, thickener, in order to improve the stability properties of the products, and reduce fluid leakage. Sodium alginate can improve the adhesion of the products the organization added to the noodles, vermicelli, rice production, so that tensile strength, bending degree, reduce breakage rates, especially for low-gluten flour, the effect is more obvious. Adding sodium alginate, bread, cakes and other products to improve the homogeneity of the products of the internal organization of the water retention effect, extend the storage time. Add the frozen confectionery products can provide the heat fusion layer of protection to improve the flavor oven to improve the performance of the melting point. Sodium alginate can be made into a variety of gel food, maintain the colloidal form, does not occur exudate or contraction, suitable for frozen food and Man-made food. Can also be used to cover the fruit, meat, poultry and aquatic products as a protective layer, not in direct contact with air to extend the storage time. Also as bread, sugar, pie filling, snacks coated cap rock, canned food, self-curing agent. The artificial egg can still be in the high temperature, freezing and acidic media dimension by adding sodium alginate to hold their original shape. Also instead of agar made from flexible, non-stick teeth, transparent crystal candy.

In pharmaceutical preparations

Sodium alginate as early as 1938 had income of the United States Pharmacopoeia. The alginate income in 1963 British Pharmacopoeia. Alginic acid is insoluble in water, but into the water to swell. Therefore, traditionally, sodium alginate as a tablet binder, while the alginate is used as a rapid release tablets disintegrant. However, sodium alginate tablets nature depends on the amount placed in the prescription, and in some cases, sodium alginate may promote the collapse of the tablet. Sodium alginate can join in the granulation process, rather than in the form of a powder after granulation to join, so that the production process easier. Compared to the use of starch, the greater mechanical strength of the system into a film. Sodium alginate suspensions, gels, and the production of concentrated emulsion matrix of fats and oils. Sodium alginate for some liquid drugs can enhance the viscosity, improve solids suspension. Propylene glycol alginate can improve the stability of the emulsion. Controlled release drug delivery system in the health care account for a very important position. Water-soluble drug particles separated from the colloidal media before the time to be minimized to ensure maximum drug loading. However, this water-insoluble drugs are not important. They found that the drug release and solubility of the drugs used. One researcher reported that the swelling of the alginate gel particles with pH sensitivity, such as particles in distilled water or acidic media (pH1.5KCl-HCl) did not change, the rapid swelling in pH7.0 phosphate buffer, size larger. Sodium alginate on the acid-sensitive This feature is useful to drugs allows drug against acid attack, and in the small intestine dry Swelling allows drugs to the desired rate of release. Another researcher through the controlled release preparation containing diclofenac sodium solution will be sodium alginate cross-linked with glutaraldehyde into ethanol under acidic conditions (slightly soluble in water) sodium alginate small ball. Embedding rate of 30% to 71%, and its value depends on the preparation conditions. Temperature during preparation of the ball or to extend the exposure time of the cross-linked material, make the embedding rate, the drug release time.

Application in the pharmaceutical industry

Dispersant made of PS type stomach intestine double contrast barium sulfate preparations, alginate sulfate has a low viscosity, fine particle size, the mural is a good, stable performance. PSS is a Fucoidan diester sodium alginate as raw material, has anti-clotting, lowering blood pressure and reduce blood clotting. Sodium alginate instead of rubber, plaster for dental impression material, not only cheap, easy to operate, and printed more accurate tooth. Sodium alginate can produce various formulations of the hemostatic agent, including hemostatic sponge, hemostatic gauze, hemostatic film, scald gauze, spraying hemostatic agent.

Sodium alginate in the textile industry

Help agent, sodium alginate for reactive dyes used in printing and dyeing industry as a paste of reactive dyes, better than the food starch and other pulp. Printed textile pattern bright, clear lines, high color yield and dye evenly, good penetrability and plasticity. Sodium alginate is the best plasm for modern printing and dyeing industry has been widely used in the printing of cotton, wool, silk, nylon and other fabrics, it is applicable for discharge printing paste. Warp yarn stiffening material Textile department of our sodium alginate starch mixed or instead of starch to confect warp, not only can save lots of food, but also make fiber of warp lint, abrasion breakage rate, thereby improving the efficiency of weaving. Sodium alginate cotton fibers and synthetic fibers.

Sodium Alginate is the sodium salt and is  alginic acid. It is a gum, extracted from the cell walls of brown algae.In recent years, It has been used in molecular gastronomy at some of the best restaurants in the world.

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