"The Science Behind Blueberries' Blue Hue"

Scientists have discovered that the distinctive blue color of blueberries comes from tiny, randomly-arranged crystals in the fruit's waxy coating that scatter light, rather than from the fruit skin or pigmented juice. This finding opens up opportunities for sustainable and biocompatible blue coatings and colorants with potential applications in various industries. The researchers are now exploring ways to prepare and apply the wax for these new colorants.