Preheating milk proteins effectively improved their protective effects against color loss
and anthocyanins degradation in GSAE solutions during thermal treatment (at 80 C for 2 h), H2O2 oxidation
(0.005% H2O2 for 1 h) and illumination (at 5000 lx for 5 d). Whey proteins and casein, preheated at
50 C and 60 C for 15 min, respectively, demonstrated the optimal protective effects.