Radishes, baking soda... pretty colors?
I need a chemist on this one, it's kinda weird. I just started cleaning some radishes for use in egg salad, and I like to use baking soda when I clean roots so I can get all the dirt out of the crevices. Well, as soon as baking soda hits the radish, it turns bright purple! The only time I've seen purple like that on my fingers is after handling certain traditional face masks of Bedouin women... yeah, long story. They're made of fabric, but some process is applied to make it seem like the cloth is overlaid with gold. But really, my question is... why did my radish go all purple on me? Anyone have any clues? Because a cursory googling got me nowhere, and I'm not exactly well up on chemistry. :-/