TRADITIONAL AND MODERN METHODS OF EXSTRACTION OF BIOLOGY ACTIVE SUBSTANCES FROM PLANT MATERIALS: PERSPECTIVE, DIGNITIES, LIMITATIONS

Abstract

Modern science shows a big interest in
phytotherapy. Medicinal plants save many biologically active
substances, which cure different diseases. The extraction of
biologically active substances is an acute question. All ways
of extraction could be subdivided into traditional: pressing
(hot and cold), percolation, maceration extraction and
modern: supercritical ultrasound extraction, extraction by
liquefi ed gas, electro osmosis, etc. All of them have dignities
and specifi cities, which should be taken into consideration
depending on the set task. Unfortunately the investigations of
the most physiological of all extractions, namely extraction of
biologically active substances into water, are quite rare.