These are the Indigo Varieties These colours might not sound very appealing, but black tomatoes are very tasty, and most importantly, rich in antioxidants. Indigo Rose the original variety was a cross-breed between red and purple tomatoes, and is the latest ‘superfood’ to hit the market.
The fruit, bred by scientists in America, contain a special antioxidant called anthocyanin. Anthocyanin is responsible for fighting diseases like diabetes and obesity, and is the main pigment that lends the tomato its purple color. And when the purple tomatoes are mixed with the regular red ones, the resultant breed turns out black.
Black tomatoes were first bred by Professor Jim Myers at the University of Oregon, during a graduate study about the health benefits of tomatoes. When they discovered that purple tomatoes contained anthocyanin, which also provides color to blueberries, they decided to cross them with some wild red ones. Eventually, they came up with a black strain.