Unveiling the Science of Blue Flower Petals
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Questions and Answers

Which class of anthocyanin pigments is responsible for violet/blue flower and fruit coloration?

  • Cyaniding type
  • Pelargonidin type
  • Anthocyanin type
  • Delphinidin type (correct)

    • What is the main cause of blue coloration in flower petals?

  • Anthocyanins (correct)
  • Delphinidin type pigments
  • Flavonoid class metabolites
  • Cyaniding type pigments

    • In the monomeric state, do anthocyanins show blue color in weak acidic and neutral pH?

  • No, never (correct)
  • Only in the presence of delphinidin type pigments
  • Sometimes, depending on the type of anthocyanin
  • Yes, always

    • What is the main difference in the structure of the listed anthocyanin types?

    <p>Number of hydroxyl groups in the B-ring</p> Signup and view all the answers

    Besides the presence of delphinidin type pigments, what else plays a significant role in the mechanism of blue color formation?

    <p>pH</p> Signup and view all the answers

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