Sodium alginate is a white or light yellow powder, a polysaccharide excipient with the required stability, solubility and viscosity.
1. Application of sodium alginate in food
(1) Sodium alginate is used as a stabilizer for ice cream instead of starch and gelatin. It can control the formation of ice crystals and improve the taste of ice cream. It can also stabilize mixed drinks such as sugar water sorbet, ice sherbet, and frozen milk. Many dairy products, such as refined cheese, whipped cream, dry cheese, etc., use the stabilizing effect of sodium alginate to prevent the adhesion between food and packaging, and can be used as a covering for dairy products.
(2) Sodium alginate is used as a thickener in salad (a cold dish) sauce, pudding (a sweet dessert), jam, tomato sauce and canned products to reduce liquid leakage due to the stable properties of the products.
(3) Adding sodium alginate to the production of noodles, vermicelli, and rice noodles can improve the cohesiveness of the product structure, increase its tensile strength, bending, and reduce the breakage rate. Especially for flour with low gluten content, the effect is more obvious. Adding sodium alginate to bread, pastries and other products can improve the water-holding function of the internal tissues of the products and extend the storage time. Adding it to frozen dessert products can provide a thermal fusion protective layer, improve flavor dispersion, and increase melting point.
(4) Sodium alginate can be made into various gel foods, maintaining a good colloidal form, and is suitable for use in frozen foods and artificial imitation foods. It can also be used to cover fruits, meat, poultry and aquatic products as a protective layer without direct contact with air to extend storage time. It can also be used as a self-coagulating agent for bread icing, stuffing, snack coating, canned food, etc. It can still maintain its original shape in high temperature, freezing and acidic media. It can also be used as a substitute for agar gel to make elastic, non-sticky, transparent crystal gummies.
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