Composition of the phospholipids of seeds of Cercis siliquastrum

The phospholipids of the polar lipids of the seeds of the Judas tree and the fatty-acid composition of the N-acylphosphatidylethanolamines, the phosphatidylcholines, and the phosphatidylethanolamines, and also the molecular-species types of the fatty acids of the phosphatidylcholines and the phosphatidylethanolamines have been studied. It has been established that the seeds of the Judas tree contain ten phospholipids. The main fatty acids are palmitic and oleic.I. V. Kutateladze Institute of Pharmacochemistry, Georgian Academy of Sciences. Translated from Khimiya Prirodnykh Soedinenii, Nos. 3,4, pp. 320–323, May–August, 1992.     

Phospholipids of the cotton plant of variety Tashkent-3. II. Structure of the main phospholipid fractions

Summary 1. Individual fractions of phosphatidylcholines, phosphatidylethanolamines, phosphatidylinositols, and the X₂ and X₃ phospholipids have been obtained from the combined phospholipids, freed from carbohydrates, of the seed kernels of the cotton plant of variety Tashkent-3.2. The compositions and position distributions of the fatty acids in the main fractions of phospholipids have been studied.3. The possible molecular composition of the phosphatidylcholines, phosphatidylethanolamines, and phosphatidylinositols have been calculated.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 155–158, March–April, 1976.     

Phospholipids of the cotton plant of variety Tashkent-3. II. Structure of the main phospholipid fractions

1. Individual fractions of phosphatidylcholines, phosphatidylethanolamines, phosphatidylinositols, and the X₂ and X₃ phospholipids have been obtained from the combined phospholipids, freed from carbohydrates, of the seed kernels of the cotton plant of variety Tashkent-3. 2. The compositions and position distributions of the fatty acids in the main fractions of phospholipids have been studied.     

A study of the phospholipids of kenaf

Summary The fatty-acid composition of the combined phospholipids and also of the main and two minor components of the phospholipids have been studied. On the basis of the results of acid hydrolysis and also IR spectroscopy, the glycerophospholipid structure of the main components of the total material has been confirmed. These main components have been subjected to enzymatic hydrolysis: the position distribution of the fatty acids have been determined and, from these, the possible diglyceride compositions of the phosphatidylcholines, phosphatidylethanolamines, and phosphatidylinositols have been calculated. It has been shown that the phospholipids are accompanied by 35–40% of carbohydrates which have been characterized qualitatively as disaccharides.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 289–293, May–June, 1976.     

Composition of the phospholipids of the cotton plant Gossipium barbadense

Summary 1. The fatty-acid compositions of the oil, the total phospholipids, and the main groups of phospholipids of the seed kernels of the fine-fibered cotton plant of variety 5904-I have been determined. The complete qualitative identity of the acids present in them and quantitative similarity of the acids in the oil and in the total phospholipids have been shown: in the degree of increasing saturation the phospholipids form the following sequence: phosphatidylcholines, phosphatidylethanolamines, phosphatidylinositols.2. It has been established by enzymatic hydrolysis with phospholipase A₂ of kufi venom that the unsaturated fatty acids are present in position of the PCh, PE, and PI molecules — to the extent of 90.6%, 96.5%, and 85.4%, respectively.3. From the position distribution of the fatty acids in the phospholipids, their possible molecular compositions have been calculated.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 693–697, November–December, 1975.     

The structure of the phospholipids of the cotton plant and the position specificity of their fatty acids

Summary 1. The structure of the main groups of phospholipids isolated from the seed kernels of the thin-fibered cotton plant of variety S-6029 has been studied.2. The fatty-acid compositions and the position distributions of the fatty acids have been determined, and from the results the possible molecular compositions of the phosphatidylcholines, phosphatidylethanolamines, and phosphatidylinositols have been calculated.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedimenii, No. 1, pp. 22–26, January–February, 1976.     

Phospholipids of the seed kernel of sunflowers

Conclusions The qualitative and quantitative composition of the phospholipid complex of the kernels of seeds of the oil-richHelianthus annuus and of the substances associated with them have been investigated by chromatography in a thin layer of silica gel.The phospholipids consist of four groups of substances: phosphatidylcholines (51.3%), phosphatidylethanolamines (22.6%), phosphatidylinositols (21.8%), and phosphatidic acids (4.3%).The substances associated with the phospholipid complex are cerebrosides and glycolipids, forming two groups in each case.Khimiya Prirodnykh Soedinenii, Vol. 6, No. 3, pp. 292–296, 1970     

Phospholipids of the seeds ofFumaria vaillantii

The qualitative and quantitative compositions of the phospholipids from the seeds ofFumaria vaillantii L. have been determined. The total fatty acid compositions of all the classes of phospholipids and the position-distributions of the phosphatidylcholines, phosphatidylinositols, and phosphatidylethanolamines have been investigated.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 40 64 75. Translated from Khimiya Prirodnykh Soedinenii, No. 6, pp. 800–802, November–December, 1997.     

Study of the fractional and fatty-acid compositions of the phospholipids ofPsoralea seeds

Summary The fractional and fatty-acid compositions of the phospholipids of Psoralea seeds have been studied for the first time. It has been established that the total phospholipids consist of phosphatidylcholines, phosphatidylethanolamines, phosphatidylinositols, N-acyl-PEs, N-acyllyso-PEs, lysophosphatidylcholines, and, possibly, phosphatidylglycerols, and also of two unidentified phospholipids.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 12–14, January–February, 1979.     

Phospholipids of Gossypium barbadense

Summary From the total phospholipids of the cotton plant of the thin-fibered variety 5904-I(Gossypium barbadense) chromatographically homogeneous fractions of phosphatidylethanolamines, phosphatidylcholines, and phosphatidylinositols have been isolated. The well-known glycerophospholipid structure of these fractions has been established on the basis of their IR spectra and the products of their acid hydrolysis.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 558–560, September–October, 1974.     

Isolation of the phospholipids of the cotton plant and their composition

Summary The yields of the free and bound lipids of the seed kernels of cotton plants of varieties S-4727 and S-6029 have been determined by their successive treatment with selective solvent, and the total and fractional proportions of lipid phosphorus have been found.The phospholipids have been solated and their group composition has been determined; it has been established that the main components are phosphatidylcholines, phosphatidylinositols, and phosphatidylethanolamines, while polyglycerophosphatides, lysophosphatidylcholines, and unidentified polar phospholipid are present in small amounts.The fatty-acid compositions of the free and bound lipids and phospholipids have been studied.Institute of the Chemistry of Plant Substances, Academy of the Uzbek SSR. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 449–453, July–August, 1975.     

Amounts of phospholipids and phytin in the seeds of various plants

Summary The amounts of combined phospholipids and phytin in the seeds of 22 plants belonging to various families have been determined. It has been established that the main components of the combined phospholipids of the seeds of the plants studied are phosphatidylcholines, phosphatidylinositols, and phosphatidylethanolamines. Some unusual properties of the combined phospholipids of the seeds of some plants of the family Compositae, and materials interesting in relation to their phospholipid and phytin contents have been found.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 505–507, July–August, 1977.     

Phospholipids of soybeans

The phospholipids (PLs) of ripe soybean seeds of the variety Uzbekskaya-2 have been investigated, and 10 classes of PLs have been detected, the main ones being phosphatidylcholines, phosphatidylethanolamines, and phosphatidylinositols. It has been found that this variety contains a large set of minor components. The compositions of the fatty acids (FAs) of homogeneous classes of PLs have been studied.Materials presented at the IInd International Symposium on the Chemistry of Natural Compounds.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 40 64 75. Translated from Khimiya Prirodnykh Soedinenii, Vol. 33, No. 1, pp. 57–60, January–February, 1997.     

Phospholipids of ripeSophora japonica seeds

Nine classes of lipids have been isolated in homogenous form from ripe seeds of the Japanese pagoda tree, and their fatty acid compositions have been established. The positional distributions of the fatty acids in the phosphatidylcholines, phosphatidylethanolamines, and phosphatidylinositols have been determined.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 40 64 75. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 578–582, July–August, 1997.     

Phospholipids of the grape

In the berries of the cultivated grape vineVitis vinifera L. nine phospholipid fractions have been identified, the main ones being phosphatidylcholines and phosphatidylethanolamines. The composition and position distribution of the fatty acids has been studied.Physicochemical Institute, Academy of Sciences of the Ukrainian SSR, Odessa. Translated from Khimiya Prirodnykh Soedinenii, No. 2, pp. 165–168, March–April, 1984.     

Composition of the phospholipids of Gossypium barbadense

Summary 1. The combined phospholipids of the seed kernels of the cotton plant have been completely freed from accompanying carbohydrates by gel filtration on Molselekt G-25.2. It has been established by two-dimensional chromatography in a thin layer of silica gel that the phospholipids of the seed kernels of the cotton plant of thin-fibered variety 5904-I consist of X₁- and X₂-polygly cerophosphatides (2.4 and 7.1%, respectively), phosphatidylethanolamines (14.1%), phosphatidylcholines (50.4%), phosphatidylinositols (20.4%), and lysophosphatidylcholines (5.6%).3. The accompanying substances of the phospholipids of the cotton plant form two groups each of steroids and disaccharides.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 19–21, January–February, 1976.     

Phospholipids of seeds of kenaf of the variety "Uzbekskii-1503"

Summary The qualitative and quantitative compositions of the combined phospholipids of the seeds of kenaf of the variety "Uzbekskii-1503" have been determined for the first time.The fatty-acid composition of the combined phospholipids and triglycerides and also of the main and two minor components of the phospholipids have been studied. On the basis of the results of acid hydrolysis and of IR spectroscopy, the glycerophospholipid structures of the main and minor components of the total material have been confirmed. The enzymatic hydrolysis of the main fractions of the total material has been performed: the position distribution of the fatty acids has been determined and from this the possible molecular compositions of the phosphatidylcholines, phosphatidy lethanolamines, and phosphatidy linositols have been calculated. Kenaf seeds can serve as a source of the medicinal preparation phytin.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 485–487, July–August, 1977.     

A comparative study of the phospholipids of kenaf seeds

Summary The qualitative and qualitative compositions of the phospholipids of kenaf seeds of the variety Opytnyi-1961 have been investigated. It has been established that the main components of the total phospholipids are phosphatidylcholines, phosphatidylethanolamines, and phosphatidylinositols, and minor components are N-acyl-PEs and their lyso analogs The structural analysis of these homogeneous fractions has been performed, and the molecular compositions of the main fractions have been calculated. On comparing the results obtained with those of other varieties of kenaf investigated previously, some differences have appeared in the qualitative, quantitative, molecular, and fatty-acid compositions of the total phospholipids and of individual fractions of them.The differences found are possibly due to the variety of characteristics of the plant. For the N-acyllyso-PEs the structure of 2-acylglycerophosphoryl-N-acylethanolamines has been established.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 559–562, September–October, 1978.     

The antimalarial agent halofantrine perturbs phosphatidylcholine and phosphatidylethanolamine bilayers: a differential scanning calorimetric study.

The interaction of halofantrine with phosphatidylcholine and phosphatidylethanolamine bilayers has been investigated by differential scanning calorimetry. Halofantrine caused a broadening of the gel to liquid crystalline phase transition endotherm of the phosphatidylcholines. A decrease in the transition temperature Tm and enthalpy (delta H) of transition was also observed. This varied with the chain length of the phospholipid and was more pronounced with short chain members. Halofantrine-induced changes to the thermotropic characteristics of dipalmitoylphosphatidylcholine (DPPC)/cholesterol bilayers suggested that the penetration of halofantrine into the bilayer was diminished in the presence of cholesterol. A more complex calorimetric profile was observed in the interaction of halofantrine with phosphatidylethanolamines and the results suggested that halofantrine did not disrupt the cooperativity of the phosphatidylethanolamine bilayers to the same extent as that observed with the phosphatidylcholines. Halofantrine caused significant perturbation of phospholipids and this property might have an important bearing on its pharmacodynamic effects.