| | 1 | Author
| Jürg En, Jacob, G. Ottfried, R. Aab | Requires cookie* | | | Title
| 2,3-Dihydroxy Fatty Acids-Containing Waxes in Storks (C iconiidae)  | | | | Abstract
| Uropygial gland secretions from five out of a total of seven species forming the genus Ciconia (family Ciconiidae; order Ciconiiformes) were found to consist of mixtures of monoester waxes, diester waxes, triester waxes, and triglycerides. Monoester waxes were com posed of unbranched fatty acids and alcohols, whereas diester waxes derived from both 2-and 3-hydroxy fatty acids esterified with unbranched alcohols and fatty acids. Interestingly, triester waxes were also found deriving from either 2-hydroxy alkylmalonic acids or from erythro-2,3-dihydroxy fatty acids the latter of which have not yet been found in vertebrates so far. To compare the typical mass spectrometric fragmentation of this class of compounds eryr/?/-o-2,3-dihydroxyhexadecanoic acid has been synthesized. | | | |
Reference
| Z. Naturforsch. 51c, 743—749 (1996); received June 7/July 1 1996 | | | |
Published
| 1996 | | | |
Keywords
| 2, 3-Dihydroxy Fatty Acids, Uropygial Gland Secretion, Triester Waxes, Ciconiiform Birds | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_C/51/ZNC-1996-51c-0743.pdf | | | | Identifier
| ZNC-1996-51c-0743 | | | | Volume
| 51 | |
| 2 | Author
| Hans Rausch, GeorgG. Gross | Requires cookie* | | | Title
| Preparation of [14C]-LabeIled l,2,3,4,6-Penta-0-Gal!oyl-/?-D-Glucose and Related Gallotannins | | | | Abstract
| [U -14C]-Labelled 1,2,3,4,6-penta-O-galloyl-ß-D-glucose was prepared by photoassimilation of 14C 0 2 with leaves from staghorn sumac (Rhus typhina) in the presence of the herbicide glyphosate. Extracts of the plant material were partitioned against ethyl acetate and chro matographed on Sephadex LH-20, yielding a series o f crude tri-to decagalloylglucoses. The pentagalloylglucose fraction among these was further purified by HPLC to >99% purity and a specific radioactivity of 130 kBq (3.5 fiCi) per fimol. The ratio of the radioactivities in the glucose and galloyl moieties, respectively, suggested a uniform labelling pattern of the product. | | | |
Reference
| Z. Naturforsch. 51c, 473 (1996); received February 8/March 8 1996 | | | |
Published
| 1996 | | | |
Keywords
| [I4C]l, 2, 3, 4, 6-Penta-0-galloyl-ß-D-glucopyranose, Gallotannins, Photosynthesis, Rhus typhina, Staghorn Sumac | | | |
Similar Items
| Find | | | DEBUG INFO
| | | | | TEI-XML for
| default:Reihe_C/51/ZNC-1996-51c-0473.pdf | | | | Identifier
| ZNC-1996-51c-0473 | | | | Volume
| 51 | |
|
