Carrageenan is a natural hydrocolloid extracted from various species of red seaweed, also known as marine algae. It is a linear sulfated polysaccharide composed of repeating galactose units and 3,6-anhydrogalactose, which are linked by alternating alpha-1,3 and beta-1,4 glycosidic linkages. The specific structure and properties of carrageenan vary depending on the seaweed species and environmental factors.

Carrageenan is renowned for its ability to form gels, making it a valuable ingredient in various industries, especially the food industry. It is commonly used as a gelling, thickening, and stabilizing agent in a wide range of food products, including desserts, dairy products, processed meats, and sauces. The different types of carrageenans, such as kappa, iota, and lambda, offer varying gel textures and functionalities, allowing for versatile applications in food formulations.

Carrageenan is a extract of hydrocolloid red seaweeed, with functions of gel, suspension, emulsion, thickener, stability, hold water. It used for food industry such as cheese, ice-cream, yaourt, butter, sausage, jelly, candy,meat products, aquatic products and so on. Carrageenan also has important functions for pharmaceutical, daily chemical, biological engineering.

Carrageenan is widely used in Dairy, Jelly, soft candies, meat products, beverage, capsule... etc.

食品工业：
Desserts: Used as a gelling agent in desserts such as puddings, mousses, and gelatin-free gummy candies.
Dairy Products: Acts as a thickener and stabilizer in dairy products like ice cream, yogurt, chocolate milk, and cream.
Processed Meats: Used to improve the texture, moisture retention, and shelf life of processed meats, including sausages and deli meats.

Sauces and Dressings: Functions as a stabilizer to prevent ingredient separation and maintain consistency in sauces, dressings, and gravies.
Plant-Based Alternatives: In plant-based products like almond milk or coconut milk, carrageenan is used to achieve a desirable texture and prevent ingredient settling.

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Carrageenan (Carrageenan) is a kind of hydrophilic colloid, also known as kirin gum, cauliflower, antler gel, gelatin, because carrageenan from kirin, cauliflower, antler red algae action of hydrohydrophilic colloid, its chemical structure is composed of galactose and dehydrated galactose polysaccharide sulfate of calcium, potassium, sodium, ammonium salt. Due to the different sulfate ester binding morphology, it can be divided into type K (Kappa), type I (Iota), and type L (Lambda). Widely used in the manufacture of jelly, ice cream, cakes, jelly, canned, meat products, treasure porridge, tremella bird's nest, soup food, cold food and so on.Carrageenan (Carrageenan) is a kind of hydrophilic colloid, also known as kirin gum, cauliflower, antler gel, gelatin, because carrageenan from kirin, cauliflower, antler red algae action of hydrohydrophilic colloid, its chemical structure is composed of galactose and dehydrated galactose polysaccharide sulfate of calcium, potassium, sodium, ammonium salt. Due to the different sulfate ester binding morphology, it can be divided into type K (Kappa), type I (Iota), and type L (Lambda). Widely used in the manufacture of jelly, ice cream, cakes, jelly, canned, meat products, treasure porridge, tremella bird's nest, soup food, cold food and so on.

APPLICATION:

1. Application in jelly
   As a good coagulant, carrageenan can replace the usual agar, gelatin and pectin. The jelly made with agar is not elastic enough and the price is high; the disadvantage of using gelatin is that it has low solidification and melting points, and requires low-temperature refrigeration for preparation and storage; the disadvantage of using pectin is that it requires the addition of highly soluble sugar and adjustment Appropriate pH value for coagulation. Carrageenan does not have these shortcomings. The jelly made with carrageenan is elastic and has no water-leaving property. Therefore, it has become a commonly used gelling agent for jelly.
   2. Application in soft candies
   Transparent fruit gummies made of carrageenan have been produced in my country for a long time. They have a rich fruit aroma, moderate sweetness, are refreshing and non-sticky to the teeth, and have better transparency than agar-agar and a lower price than agar-agar. They can be added to ordinary hard candies and soft candies. It can make the product taste smoother, more elastic, less sticky and more stable.
   3. Application in ice cream
   In the production of ice cream , carrageenan can evenly distribute fat and other solid components, prevent the separation of milk components and the increase of ice crystals during production and storage. It can make the texture of ice cream and ice cream delicate, smooth and delicious. In the production of ice cream, carrageenan can interact with cations in milk to produce unique gelling properties, which can increase the molding and melting resistance of ice cream, improve the stability of ice cream when temperature fluctuates, and make it less likely to melt when placed. .
   In ice cream production, although carrageenan is not suitable as the main stabilizer, it can be used as a good auxiliary stabilizer to prevent whey separation at very low concentrations. Because although carrageenan will increase the viscosity of the system, it cannot contain enough colloids to stabilize the system. Locust bean gum, guar gum, and carboxymethylcellulose are good primary stabilizers either alone or in combination, however they have the same disadvantage of causing whey separation in ice cream mixes. Therefore, adding carrageenan can inhibit the occurrence of this phenomenon.