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Calcium sulfate (or calcium sulphate) is the inorganic compound with the formula CaSO 4 and related hydrates. In the form of γ- anhydrite (the anhydrous form), it is used as a desiccant . One particular hydrate is better known as plaster of Paris , and another occurs naturally as the mineral gypsum .
Calcium salts of fatty acids – emulsifier, stabiliser, anti-caking agent; Calcium silicate – anti-caking agent; Calcium sorbate – preservative; Calcium stearoyl lactylate – emulsifier; Calcium sulfate – flour treatment agent, mineral salt, sequestrant, improving agent, firming agent; Calcium sulfite – preservative, antioxidant ...
Firming agents are food additives added in order to precipitate residual pectin, thus strengthening the structure of the food and preventing its collapse during processing. These are salts, typically lactates or phosphates, calcium salts or aluminum sulfates. [1] They are mainly used for (fresh) fruit and vegetables.
In Australia and New Zealand, sulfites must be declared in the statement of ingredients when present in packaged foods in concentrations of 10 mg/kg (ppm) or more as an ingredient; or as an ingredient of a compound ingredient; or as a food additive or component of a food additive; or as a processing aid or component of a processing aid. [10] Canada
Physical preservation entails processes such as refrigeration or drying. [1] Preservative food additives reduce the risk of foodborne infections, decrease microbial spoilage, and preserve fresh attributes and nutritional quality. Some physical techniques for food preservation include dehydration, UV-C radiation, freeze-drying, and refrigeration ...
A sequestrant is a food additive which improves the quality and stability of foods. [1] A sequestrant forms chelate complexes with polyvalent metal ions, especially copper, iron and nickel. This can prevent the oxidation of the fats in the food. Sequestrants are therefore a type of preservative.
Food additives are substances added to food to preserve flavor or enhance taste, appearance, or other sensory qualities. Some additives, such as vinegar , salt , smoke and sugar (crystallization), have been used for centuries to preserve food. This allows for longer-lasting foods, such as bacon, sweets or wines.
Alum, short for aluminum sulfate, is used in pickling to promote crisp texture and is approved, though not recommended, as a food additive by the United States Food and Drug Administration. [26] [27] Another common crisping agent is calcium chloride, which evolved from the practice of using pickling lime. [28] See also firming agent.