Food-Grade Calcium Chloride Can Be Used as These Types of Auxiliaries in the Food Industry
Calcium chloride is a common inorganic salt composed of calcium ions and chloride ions. It appears as a white solid, often in the form of powder, granules or lumps. It is extremely soluble in water, releases heat during dissolution, and exhibits strong hygroscopicity (deliquescence).
In the food industry, food-grade calcium chloride, as a safe and versatile food additive, is widely used in various food processing procedures. It mainly functions as the following types of auxiliaries:
Coagulant and Firming Agent
Calcium chloride can coagulate soluble pectin into a gel-like insoluble calcium pectate, thus strengthening cell walls and inhibiting the softening of fruits and vegetables.
Fruit and vegetable products: Commonly used in canned fruits and vegetables such as tomatoes, apples and strawberries, as well as pickled foods, to maintain the crispness and firmness of the produce and prevent them from turning mushy.
Soy products: In the production of tofu, dried tofu and other soy products, calcium chloride can neutralize the charge of soybean protein colloids, making proteins aggregate and gel rapidly. This not only speeds up the forming process, but also results in a firmer texture and a smooth cut surface.
Molecular gastronomy: In molecular cuisine, it often reacts with sodium alginate to gelatinize the surface of vegetable or fruit juice, forming caviar-like spheres.
Nutrient Fortifier and Electrolyte Supplement
As a highly soluble and easily absorbable calcium source for the human body, calcium chloride can be used to supplement calcium and electrolytes in food.
Beverages: It is often added to sports drinks, soft drinks, formulated water and dairy products to supplement the calcium and electrolytes the human body needs.
Stabilizer, Thickener and Emulsifier
Dairy products and sauces: In ice cream, it can refine ice crystals for a smoother taste; in jams, sweet juices and sauces, it prevents stratification and enhances the firmness, elasticity and mouthfeel of products.
Meat products: It can improve the gel strength of myofibrillar proteins, reduce water loss during thawing or cooking, and optimize the texture of meat and aquatic products.
Flavor Regulator and Substitute
Sodium reduction substitute: Calcium chloride itself has a strong salty taste, so it can partially replace table salt in the production of foods such as pickled cucumbers, maintaining the salty flavor without increasing the sodium content of the food.
Baking and brewing: It can be used as a substitute for leavening acid or salt in baking; in beer brewing, calcium ions can affect the acidity of wort, promote yeast activity, and impart a certain sweetness to beer.
Preservative and Chelating Agent
Antiseptic and bacteriostatic effect: Calcium chloride has a certain antimicrobial effect, which can inhibit the growth of mold, thus extending the shelf life of dairy products, fruit juices, canned foods and other products.
Chelation and color protection: As a polyvalent chelating agent, it can chelate trace amounts of metal ions to assist color protection, reduce enzymatic browning of fruits and vegetables, and keep fresh-cut fruits and canned foods bright-colored for a long time.
Processing Aid
Anti-caking agent and desiccant: It can be used as an anti-caking agent in the baking industry; leveraging its extremely strong hygroscopicity, it can also be used as a food-grade desiccant.
