Effect of beetroot (Beta vulgaris L. var conditiva) fiber filler and corona treatment on cassava starch films properties

CARLOS MAURICIO OTALORA GONZALEZ; SILVIA K. FLORES; MARIA F. BASANTA; LIA N GERSCHENSON

Food Packaging and shelf life

Elsevier

Lugar: Amsterdam; Año: 2020

2214-2894

The effect on the physicochemical and mechanical properties of cassava starch films, of the addition of 1,5 % ofbeetroot powder (BP) as a filler and of the application of a corona treatment (T), was studied for films obtainedthrough casting. Composite films showed an extensibility at break 36 % lower than simple films. The water vaporpermeability (WVP) decreased (54 %) and the intensity of red and yellow colors and the hydrophobicityincreased in the presence of BP. After treatment, a significant decrease in extensibility (56 %), and an increase instress (27 %) were observed for composite films. A decrease in solubility (48 %), WVP (58 %) and hydrophilicitywere observed for treated simple films. It can be concluded that the incorporation of BP and the T have potentialfor producing changes in the characteristics of these films and that some of that modifications can be beneficialin relation to films application in food.