PGPR (Polyglycerol Polyricinoleate)

Overview

PGPR (Polyglycerol Polyricinoleate), identified by the E-number E476, is an advanced, highly effective emulsifier derived through the esterification of polyglycerols with ricinoleic acid, a principal fatty acid found naturally in high purity castor oil (CAS No. 8001-79-4). This intricate chemical structure, specifically a polycondensate of ricinoleic acid with polyglycerol, bestows upon PGPR unique amphiphilic properties, making it an indispensable ingredient for manufacturers across the confectionery, food, and select cosmetic industries. At CanCastor, we supply premium-grade PGPR, meticulously engineered to exceed the stringent quality benchmarks of our global clientele. Our deep-rooted expertise as an industrial chemist and a leading global supplier of castor oil derivatives ensures that our PGPR offers unparalleled performance in complex lipid systems.

Our commitment to E-E-A-T principles is evident in our transparent sourcing and rigorous quality control protocols. We leverage our extensive experience in oleochemistry to produce a PGPR that is not only effective but also compliant with international food safety standards. CanCastor's PGPR is designed to optimize emulsion stability, particularly in challenging water-in-oil and oil-in-water systems, reflecting our specialized knowledge in enhancing texture, mouthfeel, and shelf-life in a multitude of food products. This expertise positions us as a trusted partner for industries demanding precision and reliability.

Key Physical & Chemical Properties

Our premium-grade Polyglycerol Polyricinoleate (PGPR) exhibits specific characteristics crucial for its broad industrial utility:

• Appearance: Viscous, amber-colored liquid
• Color (Gardner): Max 12
• Acid Value: Max 6.0 mg KOH/g
• Hydroxyl Value: 170 - 200 mg KOH/g
• Saponification Value: 170 - 190 mg KOH/g
• Iodine Value: 70 - 100 g I₂/100g
• Density (25°C): 1.020 – 1.040 g/mL
• HLB Value: Approximately 2.0 - 3.0 (indicating strong W/O emulsifying properties)
• Solubility: Soluble in oils and fats, insoluble in water and ethanol.