Pubblicazione scientifica

Preparation of Modified Films with Protein from Grouper Fish

FILONE TECNOLOGICO	TEMA
economia circolare e sostenibilità
produzione e cattura
produzione e raccolta
trasformazione e commercializzazione

RIASSUNTO

A protein concentrate (PC) was obtained from Grouper fish skin and it was used to prepare films with different amounts of sorbitol and glycerol as plasticizers. The best performing films regarding resistance were then modified with various concentrations of CaCl2, CaSO4 (calcium salts), and glucono-δ-lactone (GDL) with the purpose of improving their mechanical and barrier properties. These films were characterized by determining their mechanical properties and permeability to water vapor and oxygen. Formulations with 5% (w/v) protein and 75% sorbitol and 4% (w/v) protein with a mixture of 15% glycerol and 15% sorbitol produced adequate films. Calcium salts and GDL increased the tensile fracture stress but reduced the fracture strain and decreased water vapor permeability compared with control films. The films prepared represent an attractive alternative for being used as food packaging materials.

DATA

Data di pubblicazione: 01/01/2016

AUTORI

VALDIVIA-LOPEZ M A
TECANTE A
GRANADOS-NAVARRETE S
MARTINEZ-GARCIA C

ENTE DI AFFERENZA

DEPARTAMENTO DE ALIMENTOS Y BIOTECNOLOGIA FACULTAD DE QUIM UNIV NATL AUTONOMA DE MEXICO 04510 CIUDAD DE MEXICO MEXICO

RIVISTA

International Journal of Food Science, 2016, 3926847

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