Encapsulación de quercetina en nano y micro-emulsiones alimenticias

Authors

  • María Paz Xavier Departamento de Ciencia y Tecnología de los Alimentos, Facultad de Química, Universidad de la República, Uruguay
  • Iris Miraballes Polo Tecnológico de Pando, Facultad de Química, Universidad de la República, Uruguay
  • Helena Pardo Polo Tecnológico de Pando, Facultad de Química, Universidad de la República, Uruguay
  • Álvaro Mombrú Polo Tecnológico de Pando, Facultad de Química, Universidad de la República, Uruguay
  • Tomás López Departamento de Ciencia y Tecnología de los Alimentos, Facultad de Química, Universidad de la República, Uruguay. Centre Especial de Recerca, Planta de Tecnología de los Alimentos, Facultad de Veterinaria, Universidad Autónomade Barcelona, Uruguay
  • Alejandra Medrano Departamento de Ciencia y Tecnología de los Alimentos, Facultad de Química, Universidad de la República, Uruguay

DOI:

https://doi.org/10.26461/06.08

Keywords:

Antioxidante, beta lactoglobulina, vehículo alimentario

Abstract

The objective of this study was to develop, characterize and compare quercitin loaded nano and microemulsions systems. Oil in water emulsions were prepared using a high speed homogenizer (Ultra Turrax) and a high pressure homogenizer (HPH, Emulsiflex-C5, 500-1200bar). Hydrocolloids incorporation, Beta-lactoglobulin concentration and volumetric fraction variation were evaluated. Emulsifyng capacity and stability were analyzed by light backscattering (Turbiscan Classic) and droplet profile analysis (Malvern Zetasizer Nano). Using the Ultra Turrax optimum conditions for stability with a suitable particle size (d<500nm) were achieved with a concentration of 2.2 % (m/v) protein and between 0.1-0.2 % (m/v) of guar gum, while using HPH emulsions showed higher stability (α <0.05) achieved at a concentration of 1.5 % of Beta-lactoglobulin (m/v) and without using hydrocolloids. Emulsions made with high pressure achieved greater percentage of quercetin encapsulation.

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How to Cite

Encapsulación de quercetina en nano y micro-emulsiones alimenticias. (2011). INNOTEC, 6 ene-dic, 37-41. https://doi.org/10.26461/06.08

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