ANNTTO BUTTER COLOUR DESCRIPTION:Annatto butter colour is 100 % natural food colour extracted from the seeds of the tropical shrub Bixa orellana, it is also known as annatto, bixin, annatto butter colour, or rocou. The main component of the seed is carotenoid bixin, which is fat soluble and used to color butter, cheese, ice creams, various dairy products and bakery products.