Meat: color a Myoglobin meat heme-pigment color Purplish-red a Hemoglobin blood pigment a Oxymyoglobin air combines with meat Bright in its oxidized form a Metmyoglobin- major discoloration a Ferrous to ferric state a High temperatures, microorganisms and light speed the reactionMeat: Color ◼ Myoglobin – meat heme-pigment color ◼ Purplish-red ◼ Hemoglobin – blood pigment ◼ Oxymyoglobin – air combines with meat ◼ Bright in its oxidized form ◼ Metmyoglobin – major discoloration ◼ Ferrous to ferric state ◼ High temperatures,microorganisms and light speed the reaction