Anthocyanins are plant pigments which colour red, purple and blue fruits and flowers.
BBC: A bumblebee extracting nectar and pollen from a snapdragon
The firm has amended its plans after a public consultation, altering the size, colour and equipment to be used in the plant on the one-acre (0.4 hectare) site.
BBC: Artist's impression of the proposed plant
In the Linz steel plant, clean as a whistle and done up in a colour scheme recommended by a feng shui expert, there is hardly anybody to be seen.
ECONOMIST: Who says heavy industry has had its day?
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