Active Biopolymer Coating Based on Sodium Caseinate: Physical Characterization and Antioxidant Activity

The objective of this work is to investigate the effect of sodium caseinate concentration on some physical-chemical properties of coating solutions and films obtained by casting as a starting point for the development of an active coating for minimally processed fruits or vegetables. Minimally processed fennels were considered as a study case to evaluate the effect of composition and viscosity of sodium caseinate solutions on coating thickness on fennel, after the dipping phases. The antioxidant properties of active sodium caseinate coating, added with gallic acid or rosemary oil, were also evaluated. Details on materials and methods are reported in Valentino et al., 2020 (doi.10.3390/coatings10080706)