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espanolLa zeina es una proteina no polar que tiene un elevado contenido de prolina y leucina, se puede obtener facilmente de los granos de maiz y por su composicion puede formar una matriz proteica de nanoparticulas para encapsular colorantes polares. A partir de zeina USP decolorada, se sintetizaron nanoparticulas por el metodo de dispersion liquido – liquido. La sintesis se llevo a cabo en etanol al 20% y a pH 4, condiciones que permiten la mas alta estabilidad del sistema. Se obtuvo una suspension homogenea con un tamano de particula de 282,1 nm y una polidispersion de 0,127 correspondiente a un area superficial de 18,82 m2/g; se evidencio que las particulas tienen forma esferica y no presentan porosidad. Las nanoparticulas asi obtenidas se utilizaron para encapsular antocianinas extraidas del fruto de mortino (Vaccinium floribundum Kunth) utilizando los metodos de adsorcion e incorporacion. Se determino que el metodo de adsorcion permite cargar 338,24 mg de cianidina-3-glucosido, equivalente a 172,92 g de antocianinas, por cada 100 g de nanoparticulas, comparado con el metodo de incorporacion que permitio encapsular 72,74 mg de cianidina-3-glucosido, equivalente a 37,19 g de antocianinas, por cada 100 g de nanoparticulas. Los valores de la eficiencia de encapsulacion y capacidad de carga de 32,83±2,84% y 141,38±5,41% respectivamente, permiten establecer que la zeina tiene un alto potencial encapsulante. EnglishZein is a non-polar protein that has a high content of proline and leucine, it can be easily obtained from corn grains and by its composition can form a protein matrix of nanoparticles to encapsulate polar dyes. From decolorized USP zein, nanoparticles were synthesized by the liquid-liquid dispersion method. The synthesis was carried out in 20% ethanol and pH 4, conditions that allow the highest stability of the system. A homogeneous suspension with a particle size of 282,1 nm and a polydispersity of 0.127 corresponding to a surface area of ​​18.82 m2 / g was obtained; it was evidenced that the particles have a spherical shape and do not present porosity. The nanoparticles thus obtained were used to encapsulate anthocyanins extracted from the mortino fruit (Vaccinium floribundum Kunth) using the methods of adsorption and incorporation. It was determined that the adsorption method allows to load 338.24 mg of cyanidin-3-glucoside, equivalent to 172.92 g of anthocyanins, per 100 g of nanoparticles, compared with the incorporation method that allowed to encapsulate 72.74 mg of cyanidin-3-glucoside, equivalent to 37.19 g of anthocyanins, per 100 g of nanoparticles. The values ​​of the encapsulation efficiency and load capacity allow to establish that the zein has a high potential encapsulant

EFICIENCIA DE ENCAPSULACION Y CAPACIDAD DE CARGA DE ANTOCIANINAS DE Vaccinium floribundim Kunt EN NANOPARTICULAS DE ZEINA