Potassium fumarate

International Numbering System (INS) for Food Additives: 366
Food additives Europe numbers: E366 

Potassium fumarate can be used as a food excipient and serves a couple of purposes in various food products. Here's a breakdown of its properties and applications:

What is Potassium Fumarate?

• Chemical compound: Potassium fumarate is a white, odorless, and crystalline salt formed by combining fumaric acid with potassium carbonate or hydroxide. Fumaric acid is a naturally occurring organic acid found in small amounts in some fruits and plants, but it's also commercially produced.

Functions of Potassium Fumarate in Food:

• Acidity regulator (pH control): Similar to other acid regulators, potassium fumarate plays a role in managing acidity (pH) in food. It can act as a buffering agent, helping maintain a consistent and desired pH level in certain food products. This can be important for:
  • Flavor: Acidity is a key contributor to flavor profiles in many foods. Potassium fumarate can help achieve the right balance of tartness or acidity.
  • Microbial stability: Maintaining a certain pH level can help inhibit the growth of some spoilage microorganisms, contributing to the shelf life of certain food products.
• Souring agent: In some cases, potassium fumarate can be used as a souring agent to add a tart flavor to specific food applications.

Safety and Regulations:

• Generally recognized as safe (GRAS): Potassium fumarate is generally recognized as safe (GRAS) by regulatory bodies like the US FDA for use in food products at permitted levels.
• Dietary considerations: Potassium fumarate is a source of potassium, an essential mineral. However, the amount of potassium obtained from this additive in food is usually minimal compared to dietary sources like fruits and vegetables.

Overall:

Potassium fumarate is a useful food excipient with applications in pH control and adding a tart flavor profile. It's generally considered safe for consumption within the recommended levels set by regulatory bodies.