E366 - Kaliumfumarat

Origin

Potassium fumarate is the potassium salt of fumaric acid, a naturally occurring organic acid found in many plants and fungi. It is commercially produced through chemical synthesis, typically by neutralizing fumaric acid with a potassium base. Fumaric acid itself is an intermediate in the Krebs cycle, a crucial metabolic pathway in most living organisms.

Usage

As a food additive, potassium fumarate primarily functions as an acidity regulator. It helps to control the pH of food products, preventing spoilage and maintaining desired flavor profiles. It can also act as a flavoring agent or enhancer. It is used in a variety of food applications, including baked goods, beverages, processed fruits, and vegetables. The use levels are typically dictated by Good Manufacturing Practices (GMP) and are intended to achieve the desired technological effect without significantly altering the food's characteristics. Potassium fumarate is also used in animal feed as a source of potassium and as an acidifier to improve gut health.

Side Effects

Potassium fumarate is generally considered safe for consumption at levels typically used in food. Fumaric acid and its salts are naturally present in the body and are involved in normal metabolic processes. The Joint FAO/WHO Expert Committee on Food Additives (JECFA) has not established a numerical Acceptable Daily Intake (ADI) for fumaric acid and its salts, indicating that at the levels used in food, they do not pose a significant health risk. However, excessive consumption of potassium salts can lead to hyperkalemia (elevated potassium levels in the blood), especially in individuals with impaired kidney function. Symptoms of hyperkalemia can include muscle weakness, fatigue, and cardiac arrhythmias. Allergic reactions to fumarates are rare but possible. If any adverse reactions are suspected, consumption should be discontinued, and medical advice sought.

Regulatory Status

Potassium fumarate is approved for use as a food additive in many countries, including those in the European Union (EU) and the United States. In the EU, it is designated with the E number E366. Regulations specify the permitted uses and maximum levels in various food categories. In the United States, it is generally recognized as safe (GRAS) when used in accordance with good manufacturing practices.