How the temperature and salt content of food simulant affect the release of tyrosol or phenolic acids from bioactive films?

Active films made of chitosan and fish gelatin blends containing 5% (w/wt polymers) tyrosol, ferulic acid or caffeic were prepared by the casting method. The kinetic release was assessed in water 1% (w/v) NaCl solution, at three temperatures (4, 25 32°C). Partition (Kf/S) effective diffusivity (D) modelled which allowed to characterize mechanism. Tyrosol has a faster higher concentration than other antioxidants, because its structure lower level intermolecular interactions with biopolymer matrix. There is less effect temperature salt content on tyrosol contrarily phenolic acids. solution (food simulant) induced conformational changes network due modifications between gelatin, inducing strengthen release.