The molecular components of living organisms are mostly chiral (homoch
iral) and their chirality plays a dominant role in their interaction w
ith bioactive substances (drugs, flavours, herbicides, food additives,
etc.). The enantiomers different pharmacological or toxicological res
ponse are the reason of enantioseparation. It can be done by membrane
enantioseparation techniques in up-and down-stream or on-line processe
s.