By Alisa Boswell-Gore STILLWATER, Okla. – Scientists in the Oklahoma State University Department of Animal and Food Sciences are working hard to stop the waste of billions of dollars of beef each year. The U.S. beef industry loses $3 billion annually to meat discoloration. When beef is brown on the surface, it is discounted in price, and extensive discoloration leads to people throwing nutritious food in the trash. Why does meat turn brown? Most people…