reported that sodium caseinate
did not affect k-carrageenan solution viscosity at low shear
up to 0.5% k-carrageenan, suggesting no direct interactions,
but did improve k-carrageenan gel strength at concentrations
from 1 to 2.5% k-carrageenan. They reported phase
separation at high concentration, which they attributed to
electrostatic repulsive incompatibility between the two
negatively charged biopolymers, and suggested that may
have accounted for the improvement in gel strength