INHIBITORY EFFICIENCY AND PHYSICOCHEMICAL PROPERTIES OF LIPIDS FROM LEAVES AND JUICE OF ALOE ARBORESCENS Mill.
UDC 577.13: 544.02: 633.88
Abstract
The composition of lipids isolated from leaves and juice of A. arborescens (7 years ago) and the inhibitory efficiency of lipids from leaves of A. arborescens were studied. The phospholipid (PL) fractions were divided by means of TLC method. The quantitative proportion of PL fractions was determined by spectrophotometrically. The more substantial differences in the composition of PL from leaves and juice of A. arcorescens are revealed in the proportion of the more poorly oxidizable fractions of PL. The more low relative content of PL in the total lipid composition from leaves compared with than in lipids from juice, and shares of sterols are the same for lipids from leaves and juice cause 16% diminution of the molar ratio of [sterols]/[PL] in lipids from juice of A. arborescens. Lipids from leaves are known to characterize the high inhibitory efficiency that is demonstrated by model of the low temperature autoxidation of methyl oleate in the thin layer. Using UV-spectroscopy and the mathematic analysis of spectra by Gauss method the presence of the biologically active substances which contain in lipids was analysed. There are only flavonoids in the chloroform solution of lipids from juice and flavonoids and carotenoids in the small quantity in the chloroform solution of lipids from the leaves of A. arborescens.
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