Nyt om … … Violette tomater Et indhold i føden af anthocyaniner, der er antioxidanter, betragtes som en beskyttelse mod en lang række sygdomme. De fleste af de frugter og grøntsager, vi normalt spiser, indeholder imidlertid ikke tilstrækkelige mængder af anthocyaniner til at dække behovet. Man har derfor undersøgt mulighederne for at forøge mængden af anthocyaniner ved overførsel af gener fra andre planter. Der er f.eks. overført gener fra blomsterplanten løvemund til tomater. Tomaternes røde farve skyldes ikke anthocyanin, men carotenoidet lycopen. Herved har man fremavlet violette tomater, der har et indhold af anthocyaniner i såvel skind som kød, der er på højde med indholdet i blåbær og solbær. De dominerende anthocyaniner i de violette tomater er delphinidin, der er blå, og petunidin, der er mørkrød/violet. Der er den største mængde i skindet. Der er ca. 3 mg anthocyanidin pr. gram frisk frugt. Carl Th. Enrichment of tomato fruit with health-promoting anthocyanins by expression of select transcription factors. Nature biotechnology 26 (11) side 1301, DOI: 10.1038/nbt.1506. W/DAK/NYTOM/D503.DOC W/DAK/NYTOM/D503.DOC OOHH OH OH HO O HO O OOHH OOHH OH OH DELPHINIDIN DELPHINIDIN KORT NYT n OOHH OH OH HO O HO O OOHH OH OH OOCCHH33 PETUNIDIN PETUNIDIN LLYYCCOOPPEENN Danish Academy of Technical Sciences Visions in Chemistry The Torkil Holm Symposium 2018 Copenhagen 26 – 27 January 2018 World Class Speakers (in alphabetical order) Nobel Laureate, Professor Ben L. Feringa, The Symposium Themes Topics to be presented include: molecular nanotechnology, chemical biology, drug discovery and delivery, organometallic catalysis, molecular bioscience, organic functional systems, and total synthesis of complex target molecules. University of Groningen, the Netherlands Professor Bradley L. Pentelute, MIT, USA Professor Carolyn L. Bertozzi, Stanford University, USA The Aim The aim of the symposium is to bring together world-leading experts from both academia and industry to present a broad range of topics within the field of chemical science. Professor David Craik, University of Queensland, Australia Professor Dirk Trauner, New York University, USA Professor Guy Lloyd-Jones, Uni. of Edinburgh, Scotland Dr. Michael J. Sofia, Arbutus Biopharma, USA Professor Phil S. Baran, Scripps Research Institute, USA Professor Stefan Matile, University of Geneva, Switzerland Professor Dr. Tanja Gaich, University of Konstanz, Germany The Torkil Holm Prize The prize is a personal award presented every second year to a young Danish chemist who has shown an outstanding talent and documented a substantial scientific contribution to his/her field of research and who is expected to continue to improve the scope and quality of Danish chemical research. The award winner will present a lecture. The Sponsor The Torkil Holm Symposium “Visions in Chemistry will take place in Copenhagen thanks to a generous donation from the Torkil Holm Foundation. Dr. phil Torkil Holm is a distinguished emeritus in organic chemistry at the Technical University of Denmark. For further information please visit www.atv.dk or contact Symposium Coordinator Klaus Hornung at khh@atv.dk or at +45 45960824 dansk kemi, 98, nr. 10, 2017 5
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