Definition of "violaxanthin" [violaxanthin]

• A xanthophyll pigment (a di-epoxide, derived from zeaxanthin) that occurs in many plants. (noun)

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• "He and his colleagues isolated and purified a large number of them, including carotene, lycopene, flavoxanthin and violaxanthin."
• "Other carotenoids like beta-carotene, violaxanthin, neoxanthin, and antheraxanthin were also found in broccoli heads, but lutein was clearly the most significant, accounting for about half of all carotenoids measured."
• "Niyogi KK (1999) The violaxanthin cycle protects plants from photooxidative damage by more than one mechanism."