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  • 1
    Electronic Resource
    Electronic Resource
    CONDENSED TANNINS OF RAPESEED MEAL (1979)
    Oxford, UK : Blackwell Publishing Ltd
    Journal of food science 44 (1979), S. 0 
    Details
    ISSN: 1750-3841
    Source: Blackwell Publishing Journal Backfiles 1879-2005
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition , Process Engineering, Biotechnology, Nutrition Technology
    Notes: The study was undertaken to determine the amount and nature of condensed tannins in rapeseed meal. No condensed tannins were found in rapeseed meats (endosperm plus germ). The hulls, however, yielded 0.1% condensed tannins by 70% aqueous acetone extraction, the bulk of the condensed tannins in the hulls being unextractable by the extractants used. The basic unit of the isolated polymeric flavanols appeared to be leucocyanidin.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1111/j.1365-2621.1979.tb06427.x
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Influence of annealing on the lattice constants of BaVS3 (1979)
    Copenhagen : International Union of Crystallography (IUCr)
    Acta crystallographica 35 (1979), S. 2473-2475 
    Details
    ISSN: 1600-5740
    Source: Crystallography Journals Online : IUCR Backfile Archive 1948-2001
    Topics: Chemistry and Pharmacology , Geosciences , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1107/S0567740879009699
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Purine metabolism in human lymphocytes (1979)
    Springer
    Annals of hematology 38 (1979), S. 447-455 
    Details
    ISSN: 1432-0584
    Keywords: Lymphozyten ; Purinstoffwechsel ; Adenin ; Guanin ; Hypoxanthin ; Lymphocytes ; Purine metabolism ; Adenine ; Guanine ; Hypoxanthine
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary In peripheral human blood lymphocytes the uptake and metabolism of adenine, guanine, and hypoxanthine was investigated. This was achieved by incubation of purified lymphocytes with14C-purine bases, separation of cells from the incubation medium by a rapid filtration technique, and subsequent separation of the acid soluble material by thin-layer chromatography. No preferential uptake for one of the purine bases was observed. In all cases only traces of14C-purine bases not added originally and labeled nucleosides could be demonstrated. Approximately 2/3 of adenine and 1/2 of guanine or hypoxanthine were converted to nucleotides. Separation of formed nucleotides showed that adenine and guanine were metabolized mainly to their corresponding nucleotides; hypoxanthine was converted to a considerable amount to adenine nucleotides and only to a small proportion into its own nucleotides. These results demonstrate the predominance of adenine nucleotide formation in normal human lymphocytes.
    Notes: Zusammenfassung In peripheren menschlichen Lymphozyten wurden die Aufnahme und der Stoffwechsel von Adenin, Guanin und Hypoxanthin untersucht. Die gereinigten Lymphozyten wurden mit14C-markierten Purinbasen inkubiert und anschlie\end vom Inkubationsmedium mittels rascher Filtrationstechnik getrennt. Eine bevorzugte Aufnahme einer der Purinbasen konnte nicht beobachtet werden. Die dünnschichtchromatographische Auftrennung der säurelöslichen Metabolite ergab kaum eine Bildung von Nukleosiden und anderen als den zugesetzten Purinbasen. Adenin wurde zu ca. 2/3, Guanin und Hypoxanthin hingegen zu etwa der Hälfte zu Nukleotiden aufgebaut, wobei Adenin und Guanin hauptsächlich zu ihren eigenen, Hypoxanthin jedoch zu Adeninnukiektiden metabolisiert wurde. Die Ergebnisse weisen auf die bevorzugte Bildung von Adeninnukleotiden in normalen menschlichen Lymphozyten.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01013505
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  • 4
    Electronic Resource
    Electronic Resource
    The identification of anthocyanins by pyrolysis mass spectrometry and pyrolysis-GC/MS (1979)
    Springer
    Microchimica acta 72 (1979), S. 389-396 
    Details
    ISSN: 1436-5073
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Zusammenfassung Die Anwendung der genannten Verfahren wurde beschrieben. Minimaler Zeitaufwand und Probenverbrauch sind die Vorteile dieser Verfahren, da keine Derivatisierung erforderlich ist. Bei der Pyrolyse/Massenspektrometrie bildet der am C2 gebundene Substituent ein größeres thermisches Spaltprodukt, das den Typus des Anthocyans kennzeichnet. Glykoside und Aglykone sind ebenfalls leicht zu unterscheiden.
    Notes: Summary The use of pyrolysis mass spectrometry and pyrolysis-GC/mass spectrometry is described for the identification of anthocyanins. Minimal time and sample consumption are the advantages of the method, as no derivatization is requested. In pyrolysis mass spectrometry the substituent at carbon two gives rise to a major thermal fragment that is representative for the type of anthocyanin. Glycosides and aglycones are also easily differentiated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01198498
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  • 5
    Electronic Resource
    Electronic Resource
    Enzymes of the purine interconversion system in chronic lymphatic leukemia: Decreased purine nucleoside phosphorylase and adenosine deaminase activity (1979)
    Springer
    Annals of hematology 39 (1979), S. 309-315 
    Details
    ISSN: 1432-0584
    Keywords: Chronisch-lymphatische LeukÄmie ; Enzyme des Purin-Interconversionssystems ; Purin-Nucleosid-Phosphorylase ; Adenosin-Deaminase ; Chronic lymphatic leukemia ; Purine interconversion system enzyme activities ; Purine nucleoside phosphorylase ; Adenosine deaminase
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Description / Table of Contents: Summary Activities of adenosine deaminase (ADA), adenosine kinase (AK), adenine phosphoribosyltransferase (APRT), hypoxanthine guanine phosphoribosyltransferase (HGPRT), and purine nucleoside phosphorylase (PNP), all enzymes of the purine interconversion system, were determined in lymphocytes of 25 patients with chronic lymphatic leukemia (CLL) and in 23 controls. A statistically significant decrease of PNP activities and a reduction of ADA activities at borderline levels were found in the patients, whereas for the other enzymes assayed no deviation from normal values was observed.
    Notes: Zusammenfassung Bei 25 Patienten mit chronisch-lymphatischer LeukÄmie (CLL) und 23 Kontrollpersonen wurden die AktivitÄten der Purin-Interconversionsenzyme Adenosin Deaminase (ADA), Adenosin Kinase (AK), AdeninPhosphoribosyltransferase (APRT), Hypoxanthin-Guanin-Phosphoribosyl-transferase (HGPRT) und Purin-Nucleosid-Phosphorylase (PNP) bestimmt. Dabei konnte bei den Patienten mit CLL eine statistisch signifikant verminderte PNP-AktivitÄt sowie eine grenzwertig reduzierte ADA-AktivitÄt festgestellt werden, wÄhrend die AktivitÄten der anderen untersuchten Purin-Interconversionsenzyme im Normalbereich lagen.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01014193
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  • 6
    Electronic Resource
    Electronic Resource
    Glass capillary GC/MS of butter triglycerides (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 675-676 
    Details
    ISSN: 0935-6304
    Keywords: Triglycerides ; GC/MS of triglycerides ; Capillary, glass ; All-glass GC/MS interface ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240021109
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  • 7
    Electronic Resource
    Electronic Resource
    A versatile all-glass GC/MS interface for capillary columns (1979)
    Weinheim : Wiley-Blackwell
    Journal of High Resolution Chromatography 2 (1979), S. 225-228 
    Details
    ISSN: 0935-6304
    Keywords: GC/MS Interface ; Glass ; Open split ; HMDS glass surface deactivation ; Glass capillary columns ; Chemistry ; Analytical Chemistry and Spectroscopy
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: A new all-glass interface for GC/MS designed to fully exploit the potential of glass capillary columns is described. The system works in the open split mode and has high versatility with respect to column changing. It is especially suitable for mass spectrometers, which are not exclusively dedicated to GC/MS work. Two chromatograms illustrate the properties of the described interface.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/jhrc.1240020506
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