Potential Natural Dyes Food from the Powder of Prickly Pear Fruit Peels (Opuntia spp.) Growing in the Mediterranean Basin under Climate Stress.

The results showed an interesting richness of the investigated powder in pigments (betacyanins, indicaxanthins, and carotenoids) and nutritional compounds including sugar, proteins, and vitamins that make this powder interesting for being used as a dye in food.