Polyglycerol polyricinoleate emulsifier

Electrostatic and non-electrostatic biopolymer complexes can also be used as effective steric stabilizers of double (multiple) emulsions. In this type of emulsion, the droplets of one liquid are dispersed within larger droplets of a second immiscible liquid (the dispersion medium for the smaller droplets of the first liquid). In practice, it is found that the so-called direct water-in-oil-in-water (W/O/W) double emulsions are more common than inverse oil-in-water-in-oil (O/W/O) emulsions (Grigoriev and Miller, 2009). In a specific example, some W/O/W double emulsions with polyglycerol polyricinoleate (PGPR) as the primary emulsifier and WPI-polysaccharide complexes as the secondary emulsifying agent were found to be efficient storage carriers for sustained release of entrapped vitamin Bi (Benichou et al., 2002). 

Chem. Descrip. Polyglycerol polyricinoleate Uses Vise, modifier In foods emulsifier In bakery release sprays flow aid reducing yield value of chocolate or coatings Properties Liq. acid no. 6 max. iodine no. 72-103 sapon. no. 170-180 ... 

PGPR (Polyglycerol polyricinoleate, DANISCO, Denmark) was also used as emulsifier for preparing SE (W/O) and DE (W/O/W or O/W/O). PGPR is strongly lipophilic (HLB ca. 1.0), thus soluble in fats and oils, and almost insoluble in water. 

Montiel Morte MC Hayes DG. 2009. Biocatalytic synthesis of polyglycerol polyricinoleate, a value-added, bio-based, food emulsifier. 16th Annual BioEnvironmental Polymer Society (BEPS) Meeting (Polymers and the Environment - Emerging Technologies and Science. Chicago, IL. 

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