Researchers at the University of Bristol have discovered that the blue color of blueberries is not due to pigments in the fruit skin, but rather from tiny structures in their wax coating. This finding opens up possibilities for sustainable and biocompatible colorants and coatings inspired by nature.
The blue color of blueberries comes from tiny structures in their wax coating , not from pigments in the fruit skin , according to a University of Bristol study. This discovery opens up possibilities for sustainable and biocompatible colorants and coatings inspired by nature., researchers show why blueberries are blue despite the dark red color of the pigments in the fruit skin .
Their blue color is instead provided by a layer of wax that surrounds the fruit which is made up of miniature structures that scatter blue and UV light. This gives blueberries their blue appearance to humans and blue-UV to birds. The chromatic blue-UV reflectance arises from the interaction of the randomly arranged crystal structures of the epicuticular wax with light.Rox Middleton, Research Fellow at Bristol’s School of Biological Sciences, explained: “The blue of blueberries can’t be ‘extracted’ by squishing – because it isn’t located in the pigmented juice that can be squeezed from the fruit. That was why we knew that there must be something strange about the colo
Blueberries Color Wax Coating Pigments Fruit Skin Sustainable Biocompatible Nature
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