Blue bananas (IMAGE) Wiley Caption 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 to nonfluorescent catabolites is specifically inhibited by a previously unrecognized chemical modification. Credit (C) Wiley-VCH 2008 Usage Restrictions Permission to use with appropriate credit and link to http://dx.doi.org/10.1002/anie.200803189 License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.