Aelson A.S. Brum, Médelin M. da Silva, Priscilla P. dos Santos, Allana V.S. Brasil, Karina Paese, Silvia S. Guterres, Simone H. Flôres and Alessandro de O. Rios* Pages 1340 - 1345 ( 6 )
Background: Despite lutein is unstable in light, heat, and oxygen, it is a good quencher of singlet oxygen. The present study evaluated the stability of lutein (92% of purity) in Lipid-core Nanocapsules (Lutein-LNC) prepared through interfacial deposition of preformed polymer, during photosensitization (5-25°C) and heating (70-90°C).
Methods: The Lutein-LNC was characterized and presented a polydispersity index of 0.11, an average diameter of 191 nm (dynamic light scattering), zeta potential of -9.14 mV and entrapment efficiency of 100%.
Results and Discussion: During photosensitization and heating, Lutein-LNC exhibited activation Energy (Ea) of 24.67 kcal/mol and 9.96 kcal/mol, respectively, and these values of Lutein-LNC were higher than free lutein values, reported in other studies for both experiments.
Conclusion: The results obtained in this study suggested that nanotechnology can improve the stability of lutein for future applications in the food industry.
Heating, lutein, photodegradation, sensitizer, stability, zeaxanthin.
Instituto de Ciencia e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Goncalves, n. 9500, CEP 91501-970, Porto Alegre, RS, Instituto de Ciencia e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Goncalves, n. 9500, CEP 91501-970, Porto Alegre, RS, Instituto de Ciencia e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Goncalves, n. 9500, CEP 91501-970, Porto Alegre, RS, Instituto de Ciencia e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Goncalves, n. 9500, CEP 91501-970, Porto Alegre, RS, Programa de Pos-Graduacao em Ciencias Farmaceuticas, Faculdade de Farmacia, Universidade Federal do Rio Grande do Sul, Porto Alegre, RS, Instituto de Ciencia e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Goncalves, n. 9500, CEP 91501-970, Porto Alegre, RS, Instituto de Ciencia e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Goncalves, n. 9500, CEP 91501-970, Porto Alegre, RS, Instituto de Ciencia e Tecnologia de Alimentos, Universidade Federal do Rio Grande do Sul (UFRGS), Av. Bento Goncalves, n. 9500, CEP 91501-970, Porto Alegre, RS