INVESTIGADORES
MAURI Adriana Noemi
artículos
Título:
Biodegradable sunflower protein films naturally activated with antioxidant compounds
Autor/es:
SALGADO PABLO; MOLINA ORTIZ SARA; PETRUCCELLI S.; MAURI ADRIANA
Revista:
FOOD HYDROCOLLOIDS
Editorial:
ELSEVIER SCI LTD
Referencias:
Año: 2010 vol. 24 p. 525 - 533
ISSN:
0268-005X
Resumen:
The aim of this work was to study the formation of biodegradable films from sunflower protein isolates
having different concentrations of phenolic compounds, which are present in sunflower seeds and are
retained during the isolation of proteins from the residual pellet of the oil industry. Films were obtained
by casting from aqueous dispersions of the isolates, using glycerol as plasticizer. Although proteins from
different sunflower protein isolates presented different structural properties, such as surface hydrophobicity,
the films obtained did not differ significantly regarding thickness (6480 mm), density
(w1.47 g/cm3), water content (w25%), water vapor permeability (w1.4 1010 g H2O/Pa.s.m),
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
(w1.47 g/cm3), water content (w25%), water vapor permeability (w1.4 1010 g H2O/Pa.s.m),
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
(w1.47 g/cm3), water content (w25%), water vapor permeability (w1.4 1010 g H2O/Pa.s.m),
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
(w1.47 g/cm3), water content (w25%), water vapor permeability (w1.4 1010 g H2O/Pa.s.m),
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mm), density
(w1.47 g/cm3), water content (w25%), water vapor permeability (w1.4 1010 g H2O/Pa.s.m),
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).
w1.47 g/cm3), water content (w25%), water vapor permeability (w1.4 1010 g H2O/Pa.s.m),
mechanical properties (traction), glass transition temperature, or type of interactions involved in the
protein network, which in all cases were mainly hydrogen bonds, hydrophobic interactions, and disulfide
bonds. Sunflower protein films contained phenolic compounds had antioxidant activity. As the
concentration of these compounds increased the films also presented increasing opacity and greenish
tones, with absorption maximums at wavelengths similar to those of chlorophyll (which suggests their
potential use in mulching for impeding weed growth).