Are you ready for purple ketchup? What about purple pizzas? Scientists in Britain have recently developed a new type of genetically modified tomato enriched with anthocyanin, the pigment also found...
Chop up and boil some purple cabbage. Take some of the juice, and add a little vinegar. It turns a bright red. Now add some baking soda and watch the juice turn blue. What’s going on? The color of...
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