The hydrogels formed by alginate are considered biocompatible
(Klock et al. 1997; Schmidt et al. 1993). Alginate is
known as a hydrophilic biopolymer that has a coating function
because of its well-studied unique colloidal properties, which
include its use for thickening, suspension forming, gel
forming, and emulsion stabilizing. The water permeability
and mechanical attributes of the calcium alginate can be
considered as moderate compared to those of synthetic films
(Zactiti and Kieckbusch 2006). Edible films prepared with
alginate are appropriated to load additives and antibacterial
compounds