# Purple corn natural food dye research > Live situation record from CLSTR: https://clstr.news/situations/purple-corn-natural-food-dye-research > Updated: 2026-08-07T19:05:50.000Z. Sources: 2. Developments: 2. Researchers at the University of Missouri’s College of Agriculture, Food and Natural Resources have been developing a purple‑corn variety as a natural alternative to synthetic food colorants. Initial findings released in late July showed that anthocyanin pigments concentrated in the kernel pericarp retained about 75 % of their color after one hour of heating at typical food‑processing temperatures. By applying food‑grade protective coatings, stability rose to nearly 97 % for some compounds, producing shelf‑stable powders suitable for manufacturing. A follow‑up report in early August confirmed these stability results and added that the coated pigments maintained their hue for weeks in acidic beverage simulations, indicating suitability for juices, flavored waters and sports drinks. The research highlights the potential to replace petroleum‑based dyes such as Red No. 40 while offering antioxidant benefits linked to reduced inflammation and heart health, opening market opportunities for Midwest corn growers. ## Timeline ### 2026-08-07: University of Missouri researchers develop purple corn as natural food‑colorant alternative University of Missouri researchers are developing purple corn, rich in anthocyanins, as a stable natural food‑colorant to replace synthetic dyes, showing strong heat and acid resistance. 2 sources. https://clstr.news/cluster/university-of-missouri-researchers-develop-purple-corn-as-natural-foodcolorant-alternative ### 2026-07-27: University of Missouri Develops Stable Purple Corn Food Dye Alternative University of Missouri scientists found that purple corn anthocyanins stay stable after heat treatment and coating, offering a natural, antioxidant‑rich alternative to synthetic food dyes for manufacturers. 3 sources. https://clstr.news/cluster/university-of-missouri-develops-stable-purple-corn-food-dye-alternative --- Cite as: Purple corn natural food dye research. CLSTR, https://clstr.news/situations/purple-corn-natural-food-dye-research