QUALITATIVE COMPOSITION AND ORGANI C ACIDS CONTENT IN THE ABOVEGROUN D PART OF PLANTS FRO M FAMILIES LAMIACEAE, ASTERACEAE, APIACEAE AND CHENOPODIACEAE
Background. Organic acids are the compounds of aliphatic or aromatic orders, which are widespread in flora and have a wide range of biological activity. We studied the qualitative composition and quantitative contents of organic acids in the aboveground part of some unofficial medicinal plants from families Lamiaceae, Asteraceae, Apiaceae and Chenopodiaceae is relevant.
Objective. The objects of the research are the aboveground part of unofficial medicinal plants from families Lamiaceae, Asteraceae, Apiaceae and Chenopodiaceae.
Methods. Identification of organic acids was performed by means of thin-layer and paper chromatography, their content was determined by means of gas chromatography, the quantitative amount of organic acids was defined by titrimetric analysis.
Results. In the studied raw plants the quality of organic acids and their total contents were determined (in terms of malic acid). It is established that the maximum content of organic acids is accumulated in the grass Hyssopus officinalis L. (Lamiaceae), and the minimal is in the leaves of Chrysánthemum xhortorum L. variety Apro (Asteraceae). In all studied raw plants the dominance of aliphatic acids (citric, malic, oxalic and malonic) was determined by means of gas chromatography. Benzoic is predominant among the aromatic acids.
Conclusions. In the studied raw plants the quality of organic acids and their total content were determined. The following results can be used in developing the methods of quality control of the studied raw plants and during the study of new bioactive substances.
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