E476 – Polyglycerol esters of interesterified ricinoleic acid
StabiliserDescription
A complex emulsifier and viscosity reducer, synthesized by esterifying polyglycerol with polymerized fatty acids derived from castor oil (ricinoleic acid). It is primarily used in chocolate and confectionery coatings to reduce yield stress and optimize flow properties at lower fat content.
Notes
Polyglycerol polyricinoleate, or PGPR, is made from castor oil, which comes from the seeds of the castor plant. The process involves taking ricinoleic acid (the main fatty acid in castor oil) and combining it with polyglycerol through a controlled heating process. This creates a somewhat complex molecule that has unique properties for food manufacturing, particularly in chocolate production. PGPR works as an emulsifier, but its special talent is reducing viscosity – essentially making thick mixtures flow more easily. This is incredibly valuable in chocolate manufacturing, where it helps molten chocolate flow smoothly into molds and creates that perfect glossy finish. It also reduces the amount of expensive cocoa butter needed in chocolate production. You'll find PGPR primarily in chocolate products, from candy bars to chocolate coatings on cookies and ice cream. This ingredient is synthetic, created through industrial processing of natural castor oil. Since it's derived entirely from plant sources, PGPR is suitable for both vegetarian and vegan diets and complies with various religious dietary requirements. It's considered safe by food authorities, and since castor oil isn't a common allergen, PGPR typically doesn't pose allergy concerns for most consumers.