Advisor(s)
Abstract(s)
There is an increasing demand for healthier foodstuff containing specific compounds such as Polyunsaturated Fatty Acids (PUFAs). In the case of PUFAs, protection against oxidative degradation is challengeable and microencapsulation emerges as an alternative. Mayonnaises containing microencapsulated oils could be a source of PUFAs. The objective was to formulate mayonnaises containing microencapsulated chia seeds oil, pumpkin seeds oil or baru oil. Micrometric particles with high encapsulation efficiency were produced and thermal analyses indicated an increased thermal stability of all oils after encapsulation. Rheology studies highlighted an increase in the mayonnaise viscosity when microparticles containing chia and pumpkin seeds oil were added. Mechanical texture was not affected by the presence of microparticles in the mayonnaise in all formulations tested. Nevertheless, samples containing microcapsules up to 5%wt were not distinguished from the base-mayonnaise in the sensorial test. Overall, enriched mayonnaises were successfully produced and encapsulation was efficient in protecting oils from oxidation.
Description
Keywords
Mayonnaise Mechanical texture Microencapsulation PUFAs Rheology
Pedagogical Context
Citation
Rojas, Valquíria Maeda; Marconi, Luís Felipe da Costa Baptista; Guimarães-Inácio, Alexandre; Leimann, Fernanda Vitória; Tanamati, Augusto Aparecia Coelho; Gozzo, Ângela Maria; Fuchs, Renata Hernandez Barros; Barreiro, M.F.; Barros, Lillian; Ferreira, Isabel C.F.R.; Tanamati, Ailey Aparecida Coelho; Gonçalves, Odinei Hess (2019). Formulation of mayonnaises containing PUFAs by the addition of microencapsulated chia seeds, pumpkin seeds and baru oils. Food Chemistry. ISSN 0308-8146. 274, p. 220-227