Rheological and antioxidant properties of chitosan/gelatin-based materials functionalized by pomegranate peel extract.
Carbohydr Polym
; 228: 115386, 2020 Jan 15.
Article
en En
| MEDLINE
| ID: mdl-31635725
ABSTRACT
Biopolymer-based materials are potential candidates for food coatings application. In this study, pomegranate (Punica granatum L.) peel extract (PPE) at different concentrations was incorporated to chitosan/gelatin gels and the rheological, antioxidant and structural properties were evaluated. Due to its high phenolic content, PPE enhanced the antioxidant capacity of chitosan/gelatin mixtures. PPE addition extended linear viscoelastic range and enabled the samples to easily flow under the applied shear rate. Rheological properties indicated that both viscosity and activation energy of materials containing natural compounds are highly dependent on temperature. Scanning electron microscopy (SEM) images revealed the influence of PPE concentration in the scaffolds pores size. Findings of this study proved that PPE was capable to improve the functional characteristics of chitosan/gelatin-based materials enhancing the desired properties for their potential application as food coatings.
Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Fenoles
/
Extractos Vegetales
/
Quitosano
/
Frutas
/
Gelatina
/
Geles
/
Granada (Fruta)
Idioma:
En
Revista:
Carbohydr Polym
Año:
2020
Tipo del documento:
Article