Characteristics of legume proteins as wall materials for the encapsulation of fat-soluble vitamins

Wall materialCore materialEncapsulation techniqueMain findingsEncapsulation efficiencyReference
PPCVitamin DNano-emulsionPPC used as a surfactant improved vitamin absorption94–96%[42, 45]
PPIVitamin E (tocopherol)EmulsionsHigher stability of PPI emulsions when compared with SPI emulsionsNI[46]
Vitamin DNano-emulsion created by ultrasoundPPI enhanced vitamin absorptionNI[44]
SPIVitamin DMicrocapsulesEncapsulation has high vitamin retention and higher stability with respect to free vitamin D> 82%[43]
Nano-emulsionsProtect vitamin D from UV exposure> 70%[47]
Vitamin E (tocopherol)Microencapsulation by spray-dryingSPI was modified by acylation, leading to a higher retention efficiency of vitamin E compared to native proteinNative SPI: 80%; modified SPI: 95%[40]
EmulsionsStable delivery system at low temperatures (4°C)NI[46]
Vitamin ENano-emulsionStable delivery system60–90% depending on pH[41]
Vitamin A (β-carotene)NanoparticlesSuccessfully managed to preserve β-carotene inside the protein aggregates> 93%[48]

PPC: pea protein concentrate; PPI: pea protein isolate; NI: not informed