The values of pHϕ1 and pHmax for LIP/CG and HIP/CG showed mixing ratio dependence.
The smaller n with higher K was observed when KTI (or SBA) complexing with CG.
Three proteins, KTI, BBI and SBA were isolated with high purity than 90%.
Coacervation was independent of total biopolymer concentration and titration path.