Beet root is a potential source of valuable water-soluble nitrogenous pigments, called betalains, which comprise two main groups, the red betacyanins and the yellow betaxanthins. They are free radical scavengers and prevent active oxygen- induced and free radical-mediated oxidation of biological molecules. Betalains have been extensively used in the modern food industry. They are one of the most important natural colorants and are also one of the earliest natural colorants developed for the use in food systems. A more recent investigation showed that total phenolics content decreases in the...