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Keywords:

  • chlorophyll;
  • fruit;
  • luminescence;
  • pigments;
  • porphyrinoids;
  • tetrapyrrole
Thumbnail image of graphical abstract

Yes, we have blue bananas! Ripening bananas exhibit intense blue luminescence under UV light. Their luminescence arises from fluorescent chlorophyll catabolites which accumulate in the banana peels during ripening; their natural further conversion into nonfluorescent catabolites is specifically inhibited by a previously unrecognized chemical modification.