The porosity of carbohydrate-based spray-dried microparticles containing limonene stabilized by pea protein: Correlation between porosity and oxidative stability

Author(s)

Francisco, Cristhian Rafael Lopes ; Paulo, Bruna Barbon ; De Oliveira, Fernando Divino ; Pereira, Ana Paula Aparecida ; Pastore, Glaucia Maria ; Prata, Ana Silvia ; Alvim, Izabela Dutra ; Hubinger, Miriam Dupas

• Document type: Journal article
• Source: CURRENT RESEARCH IN FOOD SCIENCE; v. 5, p. 8-pg., 2022-01-01.

Abstract

In this study, the effects of different concentrations of pea protein concentrate (PPC) in the physical properties, porosity features, and oxidative stability of maltodextrin-based spray-dried microparticles containing orange essential oil (OEO, rich in limonene) were evaluated. The use of PPC resulted in spray-dried microparticles with encapsulation efficiencies of about 99 wt%, without visible pores, and relatively high glass transition temperature (66,4 degrees C) at Aw ~ 0.3. The nitrogen adsorption and positron annihilation lifetime spectroscopy measurements showed that the increase of PPC concentration from 2.4 to 4.8 wt% (g of PPC/100 g of emulsion) did not affect the porosity features of the microparticles. These results were confirmed by the profiles of OEO retention and limonene oxide production, which were similar for both samples throughout four weeks of storage. Based on these results, we verified that the lower amount of PPC we tested can effectively protect the OEO during storage, showing that a relatively cheaper orange flavor powder can be produced using less protein. (AU)

• FAPESP's process: 19/03291-2 - Effects of the use of proteins on the barrier properties of particles produced by spray drying
• Grantee: Bruna Barbon Paulo
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• 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 Opportunities: 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 Opportunities: Multi-user Equipment Program
• 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 Opportunities: Scholarships in Brazil - Master
• 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 Opportunities: Regular Research Grants