Self-assembled, disordered structural color from fruit wax bloom (www.science.org)

submitted 9 months ago by ArcticDagger@feddit.dk to c/science@lemmy.world

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[-] I_Fart_Glitter@lemmy.world 2 points 9 months ago

I had always wondered why blueberries are no longer blue when smooshed. Interesting.

[-] gnate@lemmy.world 3 points 9 months ago

That's also a difference between blueberries and bilberries, which are often sold as blueberries. One of them is blue throughout, if I recall, but is more common on Europe vs. USA.

[-] angrystego@lemmy.world 2 points 9 months ago

Both are structurally blue on the outside. Blueberries are purple inside (pigments) while bilberries are white inside (structurally, I guess).

[-] asdfasdfasdf@lemmy.world 3 points 9 months ago

Does it actually say that somewhere? So far what I've read just saying the color isn't from pigment.

[-] I_Fart_Glitter@lemmy.world 2 points 9 months ago

I thought that was what "structural color from wax bloom" meant. It's just the texture of the waxy bloom on the skin of the fruit, not any actual pigment.

[-] asdfasdfasdf@lemmy.world 2 points 9 months ago

Wouldn't that mean we could wipe blueberries with a towel and it would come off on the towel and wouldn't be blue anymore? Maybe I should try and see.