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'Sterols' in keywords
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1Author    A. Nisius, M. Müller, H. G. RuppelRequires cookie*
 Title    Digitonin Precipitable Sterols Inducing the Aggregation o f Prolamellar Body-Like Structures from Completely Dissolved P L B Components  
 Abstract    Completely dissolved lipids o f a prolamellar body/primary thylakoid (PLB/PT) fraction from etiolated Avena sativa plastids were reaggregated in vitro. The analysis o f the originating tubular structures showed a qualitative identity in their lipid content with that o f the native PLB/PT fraction. Reaggregation experiments also showed that not all lipids constituting the PLB are neces­ sary to build up the tubular structures. Only avenacosids A and B together with 3-/?-hydroxy-ste-rols are the obligatory structural components. 
  Reference    Z. Naturforsch. 37c, 251—255 (1982); received December 16 1981 
  Published    1982 
  Keywords    Prolamellar Body, Reaggregation, Sterols 
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 TEI-XML for    default:Reihe_C/37/ZNC-1982-37c-0251.pdf 
 Identifier    ZNC-1982-37c-0251 
 Volume    37 
2Author    Salvatore De Rosaa, Zornitsa Kamenarskab, Vassya Bankovab, Kamen Stefanovb, Stefka Dimitrova-Konaklievac, Hristo Najdenskid, Iva Tzevtkovad, Simeon PopovbRequires cookie*
 Title    Chemical Composition and Biological Activities of the Black Sea Algae Polysiphonia denudata (Dillw.) Kutz. and Polysiphonia denudata f fragilis (Sperk) Woronich  
 Abstract    The two investigated algae had almost identical sterol composition, but there were signifi­ cant differences in the com position o f the polar com ponents and especially in the com posi­ tion of the volatiles. P. denudata f. fragilis extracts possessed a stronger biological activity (antibacterial, antifungal and toxicity against Artem ia salina). D espite the minute m orpholog­ ical differences between the two algae, we recommend P. denudata f. fragilis to be regarded as P. denudata subsp. fragilis. 
  Reference    Z. Naturforsch. 56c, 1008—1014 (2001); received July 3/September 14 2001 
  Published    2001 
  Keywords    Polysiphonia denudata, Sterols, Volatiles 
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 TEI-XML for    default:Reihe_C/56/ZNC-2001-56c-1008.pdf 
 Identifier    ZNC-2001-56c-1008 
 Volume    56 
3Author    A. M. Rizk, A. M. Youssef, M. A. Diab, H. M. SalemRequires cookie*
 Title    Triterpenoids and Related Substances of Euphorbia paralias  
 Abstract    The study of the triterpenoids and their related substances of E uphorbia paralias resulted in isolation of ursolic acid, cycloartenol, 24-methylenecycloartenol, uvaol, a hydrocarbon fraction (/1-C29 71-C35), alcohol fraction (hexacosanol and octacosanol) and a sterol fraction (/?-sitosterol, stigmasterol, campesterol and cholesterol). Constituents of Egyptian Euphorbiaceae, I 
  Reference    (Z. Naturforsch. 29c, 529 [1974]; received June 10 1974) 
  Published    1974 
  Keywords    E uphorbia paralias, Triterpenoids, Sterols, Alcohols, ra-Alkanes 
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 TEI-XML for    default:Reihe_C/29/ZNC-1974-29c-0529.pdf 
 Identifier    ZNC-1974-29c-0529 
 Volume    29 
4Author    Yngve SolbergRequires cookie*
 Title    Chemical Investigation of the Lichen Species Anaptychia fusca, Peltigera canina, and Omphalodiscus spodochrous  
 Abstract    The three lichen species A n aptych ia fusca, P eltig era canina, and O m ph alodiscu s spodochrous have been studied with regard to their chemical content. Atranorin, gyrophoric acid, tenuiorin, allantoin, taurine, linoleic acid, a new sterol-C31H5202 , and waxes have been determined. The identity of the compounds was established by consideration of infrared, mass and nuclear magnetic resonance spectra. Besides, thin layer and column chromatographic techniques were used in this work. 
  Reference    (Z. Naturforsch. 30c, 445—450 [1975]; received January 23/April 3 1975) 
  Published    1975 
  Keywords    Lichens, Allantoin, Taurine, Sterol, Wax Esters 
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 TEI-XML for    default:Reihe_C/30/ZNC-1975-30c-0445.pdf 
 Identifier    ZNC-1975-30c-0445 
 Volume    30 
5Author    AntonioG. González, ElsaM. Rodrí Guez Pérez, ConsueloE. Hernández Padrón, JaimeBermejo BarreraRequires cookie*
 Title    Chemical Constituents of the Lichen Stereocaulon azoreum  
 Abstract    Column chromatography of the acetone extract of the lichen Stereocaulon azoreum afforded several substances identified by chemical and spectral means; a-amyrin, lupeol, taraxerol, ursolic acid, ergosterol peroxide, brassicasterol, cerevisterol, stictic acid and an acetone-con-densation derivative, lobaric acid. Furthermore atranorin, methyl ß-orsellinate, atranol and, for the first time from the genus Stereocaulon, cryptostictic acid and the dibenzofuran, strepsi-lin were isolated. 
  Reference    Z. Naturforsch. 47c, 503—507 (1992); received April 24 1992 
  Published    1992 
  Keywords    Stereocaulon azoreum, Lichens, Triterpenes, Sterols, Depsides 
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 TEI-XML for    default:Reihe_C/47/ZNC-1992-47c-0503.pdf 
 Identifier    ZNC-1992-47c-0503 
 Volume    47 
6Author    Jürgen Jacob, Britt Ziemsen, Udo HoppeRequires cookie*
 Title    Cast Skin Lipids of the Indian Python (Python molurus bivittatus, Kühl, 1820)  
 Abstract    Cast skins o f various snakes and in addition one lizard were found to contain 3 .5 -8 .6 % extractable lipid material. Lipids obtained from a cast skin o f the Indian python were analyzed in detail indicating the presence o f hydrocarbons (squalene, cholestadiene and alkanes), monoester waxes, sterol esters, diester waxes, triglycerides, sterols, free fatty acids and even more polar lipids. A m ong the monoester wax constituents odd-numbered secondary alkanols were found. It is assumed that the above lipids originate from cells o f the past integumental generation and that they play an important facilitating role during the sloughing process. 
  Reference    Z. Naturforsch. 48c, 80—8 (1993); received September 28 1992 
  Published    1993 
  Keywords    Skin Lipids, Cast Skin, Snakes, Sterols, Secondary Alcohols 
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 TEI-XML for    default:Reihe_C/48/ZNC-1993-48c-0080.pdf 
 Identifier    ZNC-1993-48c-0080 
 Volume    48 
7Author    Elsa Fuentes, AnaM. PlanchueloRequires cookie*
 Title    Sterol and Fatty Acid Patterns in Wild and Cultivated Species of Lupinus (Leguminosae)  
 Abstract    Seed oil components of wild and cultivated species of Lupinus were analyzed by gas liquid chromatography (GLC). The sterol and fatty acid patterns of Lupinus albescens and L. gib-ertianus that are considered important germoplasm resources of South America, are reported for the first time and compared with varieties of Lupinus albus, L. angustifolius and L. mutabilis. The taxonomic implication of seed oil composition was evaluated using a multivari­ ate analysis system. 
  Reference    Z. Naturforsch. 52c, 9—1 (1997); received July lO/October 25 1996 
  Published    1997 
  Keywords    Lupinus, Seed Lipids, Fatty Acids, Sterols, GLC 
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 TEI-XML for    default:Reihe_C/52/ZNC-1997-52c-0009.pdf 
 Identifier    ZNC-1997-52c-0009 
 Volume    52 
8Author    Ivayh Elenkov3, Simeon Popov3, StoitzeA. NdreevbRequires cookie*
 Title    Sterol Composition of the Black Sea Sponges Hymeniacidon sanguinea (Grant) and Halichondria panicea (Pallas)  
 Abstract    The sterol composition of H ym eniacidon sanguinea and H alichondria panicea from the Black Sea was investigated. Both sponges contain similar mixtures o f stan d s and o f dietary A5-sterols. Main sterols appeared to be C27-sterols, which could be connected with a common diet for the both sponges. Saturated short side chain sterols have been found in H ym eniaci­ don sanguinea. Three of them were novel for sponges. A possibility for the transformation of som e dietary sterols into stands is discussed. 
  Reference    Z. Naturforsch. 54c, 972—9 (1999); received March 22/June 15 1999 
  Published    1999 
  Keywords    Chemotaxonomy, Halichondria panicea, H ym eniacidon sanguinea, Sponges, Sterols 
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 TEI-XML for    default:Reihe_C/54/ZNC-1999-54c-0972.pdf 
 Identifier    ZNC-1999-54c-0972 
 Volume    54 
9Author    Maya Iv, AnatoliiI. Mitova3, MariaI. Usovb, KamenL. Bilanb, StefkaD. Stefanov3, Dimitrova-Konaklievac, P. Danail, SimeonS. Tonovc, Popov3Requires cookie*
 Title    Sterols and Polysaccharides in Freshwater Algae Spirogyra and Mougeotia  
 Abstract    Several species of freshwater green algae belonging to the order Zygnematales (Spirogyra crassa (Ktz.) Czurda, S. condensata (Vauch.) Czurda, S. longata (Vauch.) Ktz., S. juergensii Ktz., S. olivascens Rabenh. and M ougeotia viridis (Ktz.) Wittr.) were shown to have specific sterol content and characteristic monosaccharide composition o f the biomass. Polysaccharide fractions were obtained by stepwise extraction of S. condensata and characterised by a deter­ mination of monosaccharides liberated after acid hydrolysis. A ction of amyloglucosidase was used to prove the presence o f starch in algal biomass. The main polysaccharide seems to be a complex mucilage com posed of rhamnose, arabinose, xylose, galactose, and uronic acid, and the structure of this mucilage needs further investigation. 
  Reference    Z. Naturforsch. 54c, 1016—1020 (1999); received March 22/July 5 1999 
  Published    1999 
  Keywords    Freshwater Algae, M ougeotia, Monosaccharides, Polysaccharides, Spirogyra, Sterols 
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 TEI-XML for    default:Reihe_C/54/ZNC-1999-54c-1016.pdf 
 Identifier    ZNC-1999-54c-1016 
 Volume    54 
10Author    P. G. Kadkade, C. Lujan, C. RolzRequires cookie*
 Title    Studies on the Distribution of Phytosterols in Dioscorea Species Tubers  
 Abstract    C en tro am erican o de Investigacion y T ecnologia Industrial (ICA ITI), G u a tem ala , C. A. A survey was m ad e o f the d istrib u tio n o f sterols in five Dioscorea species tubers. All c ontained ^-sitosterol, stig-m asterol, cholesterol and cam pesterol, w hereas cycloartenol was detected only in two Dioscorea species. 
  Reference    Z. Naturforsch. 38c, 488—489 (1983); received D ecem ber 20 1982 
  Published    1983 
  Keywords    Dioscorea, T ubers, Sterols, Steryl Ester, Steryl G lycoside 
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 TEI-XML for    default:Reihe_C/38/ZNC-1983-38c-0488_n.pdf 
 Identifier    ZNC-1983-38c-0488_n 
 Volume    38 
11Author    H. Eidrun Dresen, R.B N Prasad, Paul-G Erhard GülzRequires cookie*
 Title    Seed and Pulp Oil  
 Abstract    The lipid com position o f Piqui (Caryocar coriaceum) seed oil and pulp oil was analyzed and found to contain triacylglycerols (95.1/95.3%) as major com ponents follow ed by free fatty acids (1.7/1.6%), diacylglycerols (1.6/1.5%), squalene (0.3/0.3%) and m onoacylglycerols (0.1/0.1%). Phospholipids were found only in seed oil (0.2%). They were identified as phosphatidylethanol-am ine and phosphatidylinositol. The sterol fraction (0.1/0.1%) contained stigmasterol and ß-sito-sterol. In seed oil triacylglycerols the C-53 molecular species were dom inated (52.8%) follow ed by C-55 (37.7%), C-57 (6.9%) and C-51 (2.6%) in minor quantities. In pulp oil triacylglycerols C-55 (51.7%) was predominant followed by C-53 (30.6%) and C-57 (17.7%). Palmitic (16:0) and oleic (18:1) acids were always the major fatty acids in both oils. In seed oil their quantities were nearly the sam e, whereas in pulp oil oleic acid was predominant. Composition of Lipids of Piqui (Caryocar coriaceum Wittm.) 
  Reference    Z. Naturforsch. 44c, 739 (1989); received June 8/July 19 1989 
  Published    1989 
  Keywords    C aryocar coriaceum, Seed Oil Com position, Pulp Oil C om position, Acyl Lipids, Sterols 
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 TEI-XML for    default:Reihe_C/44/ZNC-1989-44c-0739.pdf 
 Identifier    ZNC-1989-44c-0739 
 Volume    44