The presence of soybean during yogurt formation increased (p < 0.05) the antioxidant activities in both cow and camel milk-yogurts (61.76 ± 3.3% and 53.16 ± 0.9% respectively) compared to respective plain-yogurts (26.41 ± 07% and 15.44 ± 1.2% for plain-cow and -camel milk respectively; Fig. 5).