Quantitatively, the modifying effect ofk-carrageenan on mechanical properties of gelatin gels can be characterizes
by the two connected parametersethe storage modulus and the yield stress.
As is seen, both are growing along with the increase of thekcarrageenan concentration demonstrating the increase of the
strength and rigidity of the gel network of (bio)polyelectrolyte
complexes. As was discussed above, the significant changes in the
rheological properties of gels can be reached at some definite
gelatin/carrageenan ratio. However the presentation of experimental data in log scale shows that that these data are well
described rather by the exponential law (Fig. 8) than has threshold.