E504i - Magnesiumcarbonat

Origin

Magnesium carbonate (E504i) is an inorganic salt with the chemical formula MgCO3. It occurs naturally as the minerals magnesite and barringtonite. It can also be produced synthetically through various chemical processes, often involving the reaction of magnesium salts with carbonate sources. The synthetic production allows for a higher purity and controlled particle size, which is important for its various applications.

Usage

In the food industry, magnesium carbonate serves multiple purposes. It is primarily used as an anti-caking agent, preventing powdered or granulated foods from clumping together. This is particularly useful in products like table salt, powdered milk, and cocoa powder. It also functions as a pH regulator, helping to control the acidity or alkalinity of food products. Furthermore, magnesium carbonate can act as a source of magnesium, an essential mineral. It is sometimes added to dietary supplements and fortified foods to increase magnesium content. In baking, it can be used as a leavening agent, although less commonly than other carbonates like sodium bicarbonate.

Side Effects

Magnesium carbonate is generally considered safe for consumption at levels typically used in food. The European Food Safety Authority (EFSA) has evaluated magnesium salts, including magnesium carbonate, and established an Acceptable Daily Intake (ADI) of 250 mg of magnesium per person per day from food additives. Excessive consumption of magnesium carbonate can lead to gastrointestinal issues such as diarrhea and abdominal discomfort due to its laxative effect. Individuals with kidney problems should exercise caution, as excessive magnesium intake can exacerbate their condition. Allergic reactions to magnesium carbonate are rare but possible. If symptoms such as skin rash, itching, or swelling occur, discontinue use and seek medical attention.

Regulatory Status

Magnesium carbonate (E504i) is approved for use as a food additive in the European Union (EU) under Regulation (EC) No 1333/2008. It is also permitted in the United States, where it is Generally Recognized As Safe (GRAS) by the Food and Drug Administration (FDA) under 21 CFR 184.1426. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has also evaluated magnesium carbonate and established specifications for its use in food.