Microencapsulation of linseed oil in multilayer emulsions stabilized by carob protein hydrolysate and pectin

Author(s)

de Franca, Pedro Renann Lopes ; Gomes, Matheus Henrique Gouveia ; Nascimento, Raul Favaro ; Cunha, Rosiane Lopes ; Kurozawa, Louise Emy

• Document type: Journal article
• Source: FOOD HYDROCOLLOIDS; v. 150, p. 11-pg., 2023-12-22.

Abstract

Multilayer emulsions stabilized by carob protein hydrolysate and pectin were evaluated for microencapsulation of linseed oil by spray drying. The protein was enzymatically hydrolyzed at 2, 4, 6, 8, and 10% degrees of hydrolysis (DH), aiming to modify its technofunctional properties. Enzymatic hydrolysis increased the protein solubility, mainly at a base pH (7-9), as well as the antioxidant capacity, reaching values up to 1.4 and 2.5 times greater than the non-hydrolyzed protein, for DPPH and ABTS assays, respectively. The isoelectric point and the emulsifying properties were reduced for DH > 2%. Multilayer emulsions of pectin-stabilized oil and protein hydrolysate DH 2% were evaluated. Multilayer emulsions displayed better characteristics regarding droplet size and stability, while the use of hydrolysates decreased droplet size and improved encapsulation efficiency. Therefore, using multilayer emulsions stabilized by carob protein hydrolysate can be an excellent strategy for linseed oil microencapsulation. (AU)

• FAPESP's process: 19/03812-2 - Multi-user equipament approved in grant 2015/24351-2: Fluorescence Microscope Stand Axio Scope A1 (Carl Zeiss)
• Grantee: Douglas Fernandes Barbin
• Support Opportunities: Multi-user Equipment Program
• FAPESP's process: 19/27354-3 - Architecture of colloidal delivery systems: what is the role of structure on the digestibility?
• Grantee: Rosiane Lopes da Cunha
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 21/06606-4 - Microencapsulation of linseed oil in multilayer emulsions stabilized by carob protein hydrolysates and biopolymers
• Grantee: Pedro Renann Lopes de França
• Support Opportunities: Scholarships in Brazil - Doctorate