Quality characteristics and antioxidant activity of hickory-black soybean yogurt

► Hickory-black soybean yogurt (HBY) was prepared for the first time. ► HBY has higher water holding capacity, crude protein and amino acids contents. ► The appearance score of HBY has no significant difference from that of cow milk yogurt (CMY) (p < 0.05). ► HBY has significant higher antioxidant activity than that of CMY. ► HBY is one more nutrient-rich yogurt than CMY.