anthoxanthin
Sign in to savethumb|White cauliflower has anthoxanthin pigments Anthoxanthins () are a type of flavonoid pigments in plants. Anthoxanthins are water-soluble pigments which range in color from a white or colorless to a creamy to a yellow, often on petals of flowers. These pigments are generally whiter in an acid medium and yellowed in an alkaline medium. They are very susceptible to color changes with minerals and metal ions, similar to anthocyanins. Some examples of anthoxanthins include: apigeniun, luteolin, kaempferol, quercetin.
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thumb|White cauliflower has anthoxanthin pigments Anthoxanthins () are a type of flavonoid pigments in plants. Anthoxanthins are water-soluble pigments which range in color from a white or colorless to a creamy to a yellow, often on petals of flowers. These pigments are generally whiter in an acid medium and yellowed in an alkaline medium. They are very susceptible to color changes with minerals and metal ions, similar to anthocyanins. Some examples of anthoxanthins include: apigeniun, luteolin, kaempferol, quercetin.
Anthocyanins are also flavonoids, but their backbone is made of flavylium instead of the flavone and flavonol found in anthoxanthins. As a result, they present a blue color instead of the yellow typical of flavonoids (deriving from the Latin word flavus, meaning yellow). This modification requires a special set of genes to perform, making anthocyanins rarer than anthoxanthins in nature.