Lipids of the vegetative and generative organs ofHibiscus sp.

The lipids of the leaves, stems, and roots ofHibiscus sp. have been studied. Their fatty acid compositions have been determined. The greatest amount of unsaturated fatty acids was present in the glycolipids of the leaves and the stems. More than 25% of low-molecular-mass C₁₀-C₁₂ fatty acids have been found in the neutral lipids of the roots.Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 705–708, September–October, 1996. Original article submitted March 11, 1996.     

Lipids of the tuberous roots ofMandragora turcomanica

The lipids of the tuberous roots ofMandragora turcomanica Mizger (fam. Solanaceae) have been characterized for the first time. By using CC, TLC, Ag⁺-TLC, UV and IR spectroscopies and mass spectrometry, 20 classes of lipids and lipophilic substances have been characterized. The main components of the acyl-containing lipids that were isolated were found to be triacylglycerols and glycolipids, and among the lipophilic compounds they were alkanols and sterols; in the mixture of fatty acids of the acyl-containing lipids the 18:2, 18:1, and 16:0 acids predominated.Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 615–623, September–October, 1994.     

Neutral lipids of the seeds ofPhlomis oreophilla andPh. regelii

The lipid and fatty acid compositions of the seeds ofPhlomis oreophilla andPh. regelii (familyLabiatae) have been studied. The lipids ofPh. oreophilla are enriched with linoleic acid and those ofPh. regelii with oleic acid. Laballenic acid is present in the total acids of the triacylglycerides and the free fatty acids of both species, being concentrated in the free acids. The epoxy acids ofPh. oreophilla are represented by 9,11-epoxystearic, vernolic, coronaric, and 15,16-epoxylinoleic acids.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 561–565, September–October, 1983.     

Lipids of the bark ofElaeagnus angustifolia branches

The compositions of the neutral lipids and the glyco- and phospholipids of the bark of branches ofElaeagnus angustifolia (fam. Elaeagnaceae) have been investigated. The fatty acid compositions of the acyl-containing classes have been established.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. 1, pp. 41–44, January–February, 1998.     

Metabolites of the pathogenic fungusVerticillium dahliae. IV. Influence of the source of carbon on the lipid composition of the fungusVerticillium dahliae

Summary The compositions of the neutral lipids and the fatty-acid compositions ofVerticillium dahliae Kleb. grown in a fermenter with various sources of carbon-containing nutriment have been studied. It has been shown that the capacity of the fungus for synthesizing lipids and the quantitative and qualitative compositions of the neutral lipids and the fatty acids change according to the source of carbon-containing nutriment. Under the conditions of growth of the fungus in a fermenter, in some cases the formation of linolenic acid and of saturated iso acids is observed.It has been established that whenV. dahliae is grown on sucrose, the neutral lipids of the fungus include a chlorine-containing compound. The chlorine in the initial oil has been determined quantitatively.V. I. Lenin Tashkent State University. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. All-Union Scientific-Research Institute of Agricultural Microbiology, Leningrad. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 22–26, January–February, 1977.     

Lipids ofSilene brahuica

The qualitative and quantitative compositions of the lipid complex of the epigeal part ofSilene brahuica Boiss. (family Caryophyllaaceae) have been studied. The fatty acid composition of the acyl-containing lipids has been determined. Some differences have been found in the compositions of the fatty acids of the neutral lipids and the phospholipids.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 512–514, July–August, 1993.     

Lipids of the seeds ofSecurinega suffruticosa

The lipid composition of the seeds ofSecurinega suffruticosa (Euphorbiaceae) has been studied, and eight classes of lipids have been identified with a predominance of triacylglycerols; the fatty acid compositions and structures of the triacylglycerols have been determined. Among the hydroxy acids of the hydroxyacylglycerols 13 components belonging to saturated, monoenic, and dienic acids of the C₁₇, C₁₈, and C₂₀ series have been identified; 12-hydroxyheptadecanoic and 12-hydroxyeicosanoic acids are new.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 277–281, May–June, 1986.     

Neutral lipids of the seeds ofOenothera biennis

The lipids and fatty acids of the seeds ofOenothera biennis L, fam. Onagraceae, have been studied with the aid of chemical, chromatographic, and spectral analyses. In the lipids we identified the usual and oxygenated acylglycerides and five classes of lipophilic substances. The structures of four epxy acids and of 22 hydroxy acids have been determined. The physiologically active 18:3(6,9,12)- acid was found in all the acylcontaining classes.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (371) 1206475. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 317–321, May–June, 1999.     

Lipids of the wastes from the processing ofAconitum leucostomum

It has been established that the wastes from the production of the drug allapinin from the epigeat pan ofAconitum leucostomum consist of nonpolar and polar lipids with a high content of phospho- and glycolipids and free fatty acids.Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 37–40, January–February, 1995.     

Lipids ofMaclura aurantiaca

The lipids ofMaclura aurantiaca seeds have been investigated. The compositions of the neutral and the phosphorus-containing compounds have been determined.This work was presented at the IIIrd International Symposium on the Chemistry of Natural Compounds (Bukhara, Uzbekistan, October 19–22, 1998).Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (371) 120 64 75. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 19–21, January–February, 1999.     

Lipids ofGossypium mexicanum

The surface lipids of the coat and the lipids of the kernel of the seeds of a wild form of the medium-fibered cotton plantGossypium mexicanum var.nervosum have been studied in comparison with cultured species. Using the methods of CC, TLC, and GLC, and UV and mass spectrometry, in the cuticular lipids ofG. mexicanum three classes of neutral lipids have been detected, and in the kernel lipids 10 classes of neutral lipids, 2 classes of glycolipids, and 7 classes of phospholipids. The structures of the epoxyacyl-, hydroxyacyl-, and diacylglycerols of the kernel have been established. The greatest differences between the seeds of the wild form of the cotton plant and the cultured species are the greater weight of the seed coat, the presence in it of a considerable amount of the 18:1 and of medium-molecular-weight fatty acids, and a higher level in the kernel of gossypol pigments, polar lipids, and acylglycerols containing the 18:2 acid.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 57–62, January–February, 1987.     

Oxygenated acids of the lipids ofOnopordum acanthium seeds

The structures of the oxygenated fatty acids of the lipids ofOnopordum acanthium L. seeds have been studied by the methods of chemical, chromatographic, and spectral analyses. Triepoxy acids of the C₁₈ series and 24 monohydroxy acids with chain lengths of C₁₄–C₁₈ have been identified, of which the 8-OH-9Z,12Z-18:2 and the 14-OH-9Z,12Z-18:2 acids have been isolated as natural compounds for the first time.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 515–518, July–August, 1993.     

Neutral lipids of the seed oils ofOnopordum olgae andArcthium tomenthosum

A closeness of the compositions of neutral lipids of the seed oils ofOnopordum olgae andArcthium tomenthosum, family Asteraceae and a difference in the quantitative ratios in the set of hydrocarbons and fatty acids, both the free acids and those acylating glycerol, have been established. Four new groups of oxidized diacylglycerols have been isolated: 1, 3- and 1(3),2-hydroxyacylmonoacylglycerols and 1,3- and 1(3),2-epoxyacylmonoacylglycerols.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tachkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 312–316, May–June, 1980.     

Lipids of microalgae. I. Lipids and a protein hydrolysate fromMonochrysis lutheri

The class composition and the total fatty acid composition of the readily- and difficulty-extractable lipids and the amino acid composition of a protein hydrolysate of the dry biomass from the golden-yellow microalgaMonochrysis lutheri have been determined for the first time. It has been established that the difficulty-extractable lipids differ sharply from the readily extractable lipids in the composition of the neutral and glycolipid components and also in that of the fatty acids; 27% of the weight of the fatty acids of the latter is composed of the 20:4 and 20:5 species. The protein hydrolysate ofM. lutheri contains almost the whole set of essential fatty acids.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbekistan Republic, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 4, pp. 507–511, July–August, 1993.     

Lipids ofHeracleum lehmannianum seeds

The lipid complex of the seeds ofHeracleum lehmannianum B. has been studied. The qualitative and quantitative compositions of the neutral lipids and the phospho- and glycolipids, and the fatty acid compositions of the acyl-containing classes of lipids have been determined. It has been shown that the neutral and the polar lipids differ considerably from one another with respect to the level of certain fatty acids. The position-species compositions of the TAGS and of the main components of the phospholipids have been calculated from the results of lipolytic hydrolysis.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 89 14 75. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 10–14, January–February, 1996. Original article submitted June 12, 1995.     

Lipids of the roots ofAconitum septentrionale and of their processing wastes

The compositions of the lipids and fatty acids of the roots ofAconitum septentrionale and of their processing wastes have been investigated. A high level of the 18:2 and 18:3 acids has been found in the root lipids. A technological stage that concentrates in the wastes lipids that can be used as a complex of biologically active substances has been determined.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 89 14 75. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 701–704, September-October, 1996. Original article submitted March 11, 1996.     

Isolation and antibiotic properties of cis-hexadeca-4,7,10,13-tetraenoic acid from the algaScenedesmus obliquus UA-2-6

Summary By the method of checking antibiotic activity, conditions have been selected for the isolation of cis-hexadeca-4,7,10,13-tetraenoic acid from the fatty-acid fractions of the lipids ofScenedesmus obliquus UA-2-6. Its structure has been confirmed and it has been established that this acid possesses a broad spectrum of antibiotic action.Institute of Microbiology, Academy of Sciences of the Uzbek SSR, Tashkent. Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 379–385, May–June, 1978.     

Unsaponifiable substances of the lipids of the leaves ofHibiscus sp

The unsaponifiable substances of the lipids of the leaves ofHibiscus sp. have been studied. The compositions have been found of seven classes of compounds: hydrocarbons, carotenoids, tocopherols, isoprenols, triterpenols, and phytosterols and their esters.The materials of the paper were presented at the IInd International Symposium on the Chemistry of Natural Compounds (SCNC, Turkey, Eskiehir, October 22–24, 1996).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. 49–51, January–February, 1997.     

Carbohydrates and lipids ofPleurotus ostreatus

The composition of the fruiting body ofPleurotus ostreatus has been studied. The total neutral lipids and phospholipids have been isolated. In the neutral lipids, free fatty acids, triacylglycerols, and sterol and triterpenol esters predominated. In the phospholipids, the main components were phosphatidylethanolamines and phosphatidylserines. The qualitative compositions of the sugars and the pectin are given.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Republic of Uzbekistan, Tashkent, fax (3712) 89 14 74. Translated from Khimiya Prirodnykh Soedinenii, No. 3, pp. 362–364, May–June, 1995. Original article submitted June 20, 1994.     

Lipids ofFerula seeds

A study has been made of the surface lipids and essential oil of the seeds of three species ofFerula: F. lapidosa, F. ceratophylla, andF. tschimganica. It has been shown that the surface lipids are characterized by a high content of saturated hydrocarbons, and a lipid extract of the seeds contained 50% of triacylglycerols.Institute of the Chemistry of Plant Substances, Academy of Sciences of the Uzbek SSR, Tashkent. Translated from Khimiya Prirodnykh Soedinenii, No. 5, pp. 571–573, September–October, 1984.