Mono- and diglycerides of fatty acids

International Numbering System (INS) for Food Additives: 471
Food additives Europe numbers: E471 

Mono- and diglycerides of fatty acids, often abbreviated as MDG or E471, are common and versatile food excipients used in a wide range of processed foods. Here's a breakdown of their key characteristics and applications:

Composition:

• They are a mixture of two types of molecules derived from triglycerides (fats and oils):
  • Monoglycerides: These have one fatty acid molecule attached to a glycerol molecule (the backbone).
  • Diglycerides: These have two fatty acid molecules attached to a glycerol molecule (with one remaining slot available for another fatty acid).

Natural Occurrence:

• Small amounts of mono- and diglycerides occur naturally in many fats and oils.
• They can also be commercially produced from various vegetable or animal fats and oils through a process called glycerolysis.

Functions in Food:

• Emulsifiers: Their primary function is as emulsifiers. They help stabilize mixtures of ingredients that wouldn't normally blend well together, like oil and water. This creates a smooth and consistent texture in food products.
• Other functionalities: Depending on the specific type of fatty acid attached, they can also have additional properties like:
  • Anticaking agents: Preventing clumping of powders.
  • Wetting agents: Promoting even distribution of moisture.
  • Aerating agents: Helping incorporate air into doughs and batters.

Applications in Food:

Due to their emulsifying properties, mono- and diglycerides find use in a variety of food products:

• Baked Goods: Improve texture and prevent bread dough from sticking.
• Fats and Spreads: Maintain a smooth texture and prevent oil separation in margarines, peanut butter, and mayonnaise.
• Confectionery: Create a smooth texture in chocolate, candy coatings, and icings.
• Beverages: Help disperse flavoring oils and prevent separation in coffee creamers or powdered drinks.

Safety:

• Generally recognized as safe (GRAS) by the FDA for their intended uses in food when used according to good manufacturing practices and within limitations.

Source (Plant-based vs. Animal-based):

• Mono- and diglycerides can be derived from both plant-based (soybean oil, palm oil) and animal-based fats.
• If following a vegan diet, look for products that specify plant-based sources in the ingredient list.