Proprietary purple corn from Suntava is now being used by Zumbro River Brand, Inc. to manufacture extruded snack items. The crunchy snacks, cereals and variously shaped crispy pieces are made with flour from Suntava’s purple corn. The extruded purple corn pieces exhibit a natural bluepurple color that changes to raspberry red with surface application of food-grade acidulants. The whole-grain purple corn flour is non-GMO, gluten-free and displays a high concentration of antioxidants. Phone (651) 998-0723;