His research interests lie in factors that determine the absorption, metabolism, and elimination of the different vitamin E congeners and phytochemicals (such as curcuminoids and flavonoids) and in developing novel strategies to overcome the low intrinsic oral bioavailability of phytochemicals, as well as in understanding the biological activities of these potentially health-beneficial bioactives.
Professor Frank was invited to appear as a nutrition expert on the German TV program planet wissen.
REDOX BIOLOGY MEETS NUTRITION
Impressions from the joint conference REDOX BIOLOGY MEETS NUTRITION of the Society for Free Radical Research - Europe and the Society of Nutrition and Food Science, which was organised and chaired by Prof Frank. The conference program featured award lectures by Prof Barry Halliwell, the first scientist to give the SNFS Advances in Nutrition Research Lecture, Prof Enrique Cadenas, Prof Randal Kaufman and many more esteemed scientists.
Congratulations Doctor Alexa!
Alexa gave an excellent presentation on her PhD project, during which she studied the biological availability and activities of native curcumin and curcumin micelles, and defended her thesis July 6.
Alexa will stay with the group until the end of September as a postdoctoral researcher before taking on new challenges.
Congratulations Doctor Maren!
Maren successfully defended her PhD project on June 9 and impressed the examination board with her in depth knowledge of vitamin E. She will stay with the group as a postdoctoral research until the end of the year, before taking on new challenges abroad.
Recent appearances in the media
alles wissen | hr fernsehen
The first nutrition and food science journal to offer Registered Reports
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Concentrations of total curcuminoids in plasma, but not liver and kidney, are higher in 18- than in 3-months old mice
The oral bioavailability of curcuminoids in healthy humans is markedly enhanced by micellar solubilisation but not further improved by simultaneous ingestion of sesamin, ferulic acid, naringenin and xanthohumol
Non-targeted 1H-NMR-metabolomics suggest the induction of master regulators of energy metabolism in the liver of vitamin E-deficient rats
Paper of the year 2014
Our paper The oral bioavailability of curcumin from micronized powder and liquid micelles is significantly increased in healthy humans and differs between sexes was the article with the most downloads from the website of Molecular Nutrition and Food Research in 2014 and therefore selected as the journal’s Paper of the year 2014.
In this article, the lead authors Christina Schiborr and Alexa Kocher report the results of a crossover human trial identifying micellar solubilisation as a technique to increase the oral bioavailability of curcumin 185-fold over native curcumin.