Conference Abstract Book

Biggest challenge – xanthohumol stability 0 10 20 30 40 50 60 70 80 90 100 0 100 200 300 400 500 % of initial XN concentration time [h] A B C D A : -19 o C, darkness B : room temperature, darkness C : 4 o C, darkness D : room temperature, under LED lamp Xanthohumol quickly isomerises to less active isoxanthohumol – the proces is accelerated by light and higher temperatures.