Comment by AlanYx
3 hours ago
The claim in the article that saccharomyces cerevisiae (brewer's yeast) naturally produced the deep blue color in the butterfly example is not actually true, although it's a gorgeous effect.
These are genetically engineered variants of brewer's yeast designed to produce pigments.
Wow you weren’t kidding that’s a beautiful color
You can buy this color for 3€/meter at any weekend fabric market.
You could, but getting it from pigments in a chitinous matrix produced by genetically engineered brewer's yeast is just a little bit cooler.
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