UV-SPECTROMETRY AND THE LIPID COMPOSITION OF THE WATER-PROPYLENEGLYCOL EXTRACTS FROM SEVERAL HERBS
The physico-chemical properties by means of UV-spectroscopy and the lipid composition of extracts from Salvia officinalis L. leaves, the Calendula officinalis L and Matricaria chamomilla L. flowers; Hippophoe rhamnoides L fruits were studied. It is shown that extracts characterized the low shares of phospholipids and a trace content of sterols in the total lipid composition. Extracts studied are in the following sequence in accordance with decreasing the phospholipid share in the total lipid composition: Salvia officinalis L. leaves > Calendula officinalis L flowers = Hippophoe rhamnoides L fruits > Matricaria chamomilla L. flowers. It is shown that the quantitative ratio of phospholipid fractions is determined by the nature of the plant. Thus, the highest relative content of the phospholipid lysoforms in extracts was found in Calendula officinalis L flowers and Hippophoe rhamnoides L fruits, the highest share of sphingolipids was revealed in phospholipids of Calendula officinalis L and Matricaria chamomilla L flower extracts, and the phospholipids of Hippophoe rhamnoides L fruit extracts contained the highest amount of phosphatidylcholine. The high content of the more easily oxidizable fractions in the phospholipid composition especially for Salvia officinalis L. leaves are revealed. Using UV-spectrometry of extracts and mathematical analysis of these data the presence of flavonoids with different chemical structure is confirmed.