The present invention relates to a food additive, and more particularly to a food additive that provides antimicrobial properties, and extends shelf life while maintaining the flavor profile of the foodstuff. The food additive may include 85 to 95 percent by weight sodium or potassium salt, 1 to 10 percent by weight of at least one compound having antioxidant properties, 0.1 to 10 percent by weight of at least one mustard family based compound, and 0 to 1 percent by weight of at least one tea based compound.