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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Plant proteins at low concentrations as natural emulsifiers for an effective orange essential oil microencapsulation by spray drying

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Francisco, Cristhian Rafael Lopes [1] ; de Oliveira Junior, Fernando Divino [1] ; Marin, Gabrieli [2] ; Alvim, Izabela Dutra [3] ; Hubinger, Miriam Dupas [1]
Total Authors: 5
[1] Univ Estadual Campinas, Sch Food Engn, Dept Food Engn, BR-13083862 Campinas, SP - Brazil
[2] Univ Estadual Campinas, Sch Food Engn, BR-13083862 Campinas, SP - Brazil
[3] Inst Food Technol ITAL, Cereal & Chocolate Technol Ctr CEREAL CHOCOTEC, BR-13070178 Campinas, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Web of Science Citations: 0

In this work, pea and soy proteins were used as emulsifiers on the encapsulation of orange essential oil (OEO, rich in d-limonene) by emulsification followed by spray drying. A commercial pea protein concentrate (PPC) was studied regarding its ability to act as an emulsifier, stabilize oil-in-water emulsions containing OEO, and to produce spray-dried microparticles in comparison to a commercial soy protein isolate (SPI), which is an emulsifier that has been already used on the microencapsulation of flavors. Both PPC and SPI presented low solubility in water at their natural pH; however, the even lower solubility of PPC resulted in lower adsorption at the oil-water interface. High solids oil-in-water emulsions stabilized using different concentrations of PPC or SPI (0.6-6.0 wt%) presented different physicochemical properties and physical stability due to the difference between the solubility of PPC and SPI in water. The spray-dried microparticles produced from selected SPI emulsions presented better stability during the drying stage than PPC emulsions, which resulted in higher OEO retention values (84.1-100 wt% and 92.6-97.9 wt% for PPC and SPI, respectively). Overall, the spray-dried microparticles produced using PPC or SPI present similar physical properties that promote the protection of the encapsulated OEO. Based on these results, despite its low solubility, pea protein can be used for encapsulating OEO effectively; therefore, its use as an emulsifier on the encapsulation of other different flavor compounds must be explored even further. (AU)

FAPESP's process: 18/16176-4 - Effects of the use of PEA protein concentrate in the barrier properties of microparticles containing D-limonene produced by spray drying
Grantee:Cristhian Rafael Lopes Francisco
Support type: Scholarships in Brazil - Master
FAPESP's process: 18/20466-8 - Overcoming barriers in the application of oleoresins: Stability and Digestibility of Co-encapsulated Systems with Application in Food Products
Grantee:Miriam Dupas Hubinger
Support type: Regular Research Grants
FAPESP's process: 17/15410-0 - Evaluation of wall structure properties formed during microencapsulation of hydrophobic substances by spray drying
Grantee:Izabela Dutra Alvim
Support type: Regular Research Grants
FAPESP's process: 09/54137-1 - Acquisition of a particle size/distribution analyzer, a zeta potential measurement system, a spray dryer, and an ultra-high-pressure liquid chromatograph/mass spectrometer
Grantee:Miriam Dupas Hubinger
Support type: Multi-user Equipment Program