Plants contain a wide range of interesting secondary metabolites, which are used as phytopharmaceuticals, fine chemicals as well as additives for foodstuffs and cosmetics. The conventional extraction from whole plants or parts of them is limited due to several environmental and geographical influencing factors. Plant in vitro cultures can be considered as alter-native solution to obtain valuable secondary metabolites. This technique allows a year-round production in closed bioreactor systems under sterile and optimal conditions with constant high-level quality and quantity.