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'Sterols' in keywords Facet   Publication Year 1999  [X]
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1999[X]
1Author    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 
2Author    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