Physical and Structural Properties of Chitosan-Squid Gelatin Hydrogels.

The development of functional hydrogels is currently receiving great attention. In this study, a squid by-product, gelatin (SG)-acetic acid solution, was added to a commercial chitosan (CH)-acetic acid solution to develop an antioxidant hydrogel. The CH-SG mass ratios evaluated were 1:0, 2:1, and 1:2.