Interphase Transport of Benzoic Acid in Emulsions

Landy, Pascale; Voilley, Andrée; Wedzicha, B.L.

doi:10.1006/jcis.1998.5723

Cited by 2 publications

(1 citation statement)

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“…Therefore, the high solubility of resveratrol drives its transfer from the aqueous phase to the inner peppermint oil ( Figure 6 ). It has been reported that the transfer rate of aroma compounds through the interface depends on their affinity toward the liquid phases of a static model system [ 34 ].…”

Section: Resultsmentioning

confidence: 99%

Effect of Oil Type on Spatial Partition of Resveratrol in the Aqueous Phase, the Protein Interface and the Oil Phase of O/W Emulsions Stabilized by Whey Protein and Caseinate

2023

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Oil-in-water emulsions contain the inner oil phase, the protein membrane at the interface and the aqueous phase. In this study, the spatial partition of resveratrol was investigated in sunflower oil, fish oil, medium-chain triglyceride (MCT) and peppermint oil emulsions stabilized by native whey protein isolate (WPI), heat-denatured WPI and sodium caseinate. Resveratrol was added in the aqueous phase of emulsions and its partition was analyzed in term of resveratrol solubility in bulk oil and in the aqueous phase of protein, protein concentration and interfacial protein. The final concentrations of resveratrol in the aqueous phase were basically greater than those in the oil phase of fish oil, sunflower oil and MCT oil emulsions, while the final concentrations of resveratrol in the oil phase were greater than those in the aqueous phase of peppermint oil emulsions. The difference in the interfacial partition of resveratrol and proteins increased as the polyphenol solubility in bulk oil increased. Resveratrol solubility in the oil phase drove its transfer from the aqueous phase into the oil phase in all emulsions, except that the interfacial protein also contributed to the transfer in fish oil emulsions. The oil–water interface provided the microenvironment for the enrichment of resveratrol by proteins.

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Section: Resultsmentioning

confidence: 99%