E515i - Sulfate de potassium

Origin

Potassium sulfate (K₂SO₄) is an inorganic salt composed of potassium and sulfate ions. It occurs naturally as the mineral arcanite and kainite. Industrially, it is produced by reacting potassium chloride with sulfuric acid or through the Mannheim process. It can also be obtained from complex salt mixtures through fractional crystallization.

Usage

In the food industry, potassium sulfate is used as a firming agent, a flavor enhancer, and a processing aid. It can contribute to the texture of certain foods and enhance their taste. It is also used in the production of fertilizers due to its potassium and sulfur content, which are essential nutrients for plant growth. It is found in baked goods, beverages, and processed foods. It also has applications in the pharmaceutical industry.

Side Effects

Potassium sulfate is generally recognized as safe (GRAS) when used in accordance with good manufacturing practice. High doses can lead to gastrointestinal discomfort, including nausea, vomiting, and diarrhea. Individuals with kidney problems should exercise caution, as excessive potassium intake can lead to hyperkalemia (elevated potassium levels in the blood), which can be dangerous. The European Food Safety Authority (EFSA) has not established a specific Acceptable Daily Intake (ADI) for potassium sulfate, considering its use at the levels necessary to achieve the desired technological effect does not raise safety concerns. However, it is important to note that potassium intake from all sources should be considered, especially for individuals with pre-existing health conditions.