Cacao Blossoms (image) Penn State Share Print E-Mail Caption Blossoms on a chocolate (or cacao) tree. Research by Penn State scientists has identified a gene that determines the melting point of cocoa butter, which could lead to new varieties of chocolate and to improved pharmaceuticals and cosmetics. Credit Mark Guiltinan, Penn State Usage Restrictions non commercial use only Share Print E-Mail 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.