The TS values of CM plasticized films were higher than those for Opuntia ficus-indica L. mucilage-based films (0.4–0.95 MPa)for whey protein concentrate and CM compositefilms (2.67–4.68 MPa); for kefiran-basedfilms (5.04–8.85 MPa); and for whey protein isolate and mesquite gum composite films (2.0–12.1 MPa).