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Direct linkSampaio, Cátia I.; Sousa, Luís F.; Dias, Alice M. – Journal of Chemical Education, 2020
Anthocyanins are natural pigments belonging to the flavonoid family that generate the red, blue, and purple colors of fruits, vegetables, and flowers. Their structure and color are dependent on various factors, like the pH. Anthocyanins appear red in acidic, purple in neutral, and blue in basic solutions, making them suitable for use as natural pH…
Descriptors: Color, Chemistry, Science Instruction, Laboratory Experiments
