Incorporación de hidrolizados de plasma bovino a formulaciones proteicas para formar películas con propiedades antioxidantes

PABLO SALGADO; FERNANDEZ GRACIELA B.; DRAGO SILVINA; ADRIANA N MAURI

Buenos Aires

Jornada; VI Jornadas Internacionales de Proteínas y Coloides Alimentarios (JIPCA; 2011

UBA

The effect of adding different amounts of a bovine plasma hydrolysate (BPH) with high antioxidant capacity on the functional properties of protein films based on soybean and sunflower protein was studied. BPH caused a decrease in tensile strength, elastic modulus and glass transition temperature of the films, as well as an increase in their elongation at break and water vapor permeability, without noticeably affect their appearance. These results suggest that this hydrolysate had a plasticizing effect onfilms based on soybean and sunflower protein was studied. BPH caused a decrease in tensile strength, elastic modulus and glass transition temperature of the films, as well as an increase in their elongation at break and water vapor permeability, without noticeably affect their appearance. These results suggest that this hydrolysate had a plasticizing effect onfilms, as well as an increase in their elongation at break and water vapor permeability, without noticeably affect their appearance. These results suggest that this hydrolysate had a plasticizing effect on film properties despite its wide distribution of molecular weights. BPH also conferred important antioxidant properties to protein films. It is noteworthy that the antioxidant capacity of the protein-basedlm properties despite its wide distribution of molecular weights. BPH also conferred important antioxidant properties to protein films. It is noteworthy that the antioxidant capacity of the protein-basedfilms. It is noteworthy that the antioxidant capacity of the protein-based films activated with bovine plasma hydrolysate, proved to be the result of the sum of the characteristics of the protein matrix, plus of the characteristics of the hydrolysate, no synergistic or antagonistic effects were observed in this property. The use of vegetable proteins (soybean or sunflower) as a biopolymer forlms activated with bovine plasma hydrolysate, proved to be the result of the sum of the characteristics of the protein matrix, plus of the characteristics of the hydrolysate, no synergistic or antagonistic effects were observed in this property. The use of vegetable proteins (soybean or sunflower) as a biopolymer forflower) as a biopolymer for film preparation and its activation with bovine plasma hydrolysate with antioxidant capacity should be an approach for maximization the use of these underused proteinslm preparation and its activation with bovine plasma hydrolysate with antioxidant capacity should be an approach for maximization the use of these underused proteins