Caprol polyglycerol esters (PGE’s) are generally prepared by esterification of select polyglycerol molecules with fatty acids or by alcoholysis of a vegetable oil with a polyglycerol. Their range in HLB make them suitable for both w/o and o/w systems. PGE molecular weights vary from low to high and their form at room temperature ranges from a viscous liquid to a solid. PGE’s are useful as solubilizers, clouding agents, crystallization inhibitors, and suspending agents.
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