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  • 1
    Digitale Medien
    Digitale Medien
    Enzymatic prenylation of isoflavones in white lupin
    Amsterdam : Elsevier
    Phytochemistry 34 (1993), S. 147-151 
    Details
    ISSN: 0031-9422
    Schlagwort(e): Leguminosae ; Lupinus albus ; isoflavones. ; prenyltransferase ; white lupin
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)90796-9
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  • 2
    Digitale Medien
    Digitale Medien
    Purification and some properties of five anthraquinone specific glucosyltransferases from Cinchona succirubra cell suspension culture
    Amsterdam : Elsevier
    Phytochemistry 26 (1987), S. 2531-2535 
    Details
    ISSN: 0031-9422
    Schlagwort(e): Cinchona succirubra ; FPLC, anthraquinones ; Rubiaceae ; glucosyltransferases ; plant cell culture. ; purification
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Biologie , Chemie und Pharmazie
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/S0031-9422(00)83870-4
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  • 3
    Digitale Medien
    Digitale Medien
    IMPROVEMENT OF THE FRACTURE TOUGHNESS OF AN ALUMINIUM ALLOY (1994)
    Oxford, UK : Blackwell Publishing Ltd
    Fatigue & fracture of engineering materials & structures 17 (1994), S. 0 
    Details
    ISSN: 1460-2695
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Maschinenbau
    Notizen: Abstract— The improvement of a material's toughness has significant industrial applications. An example is the manufacture and maintenance of commercial gas containers made in the form of aluminium cylinders; a challenging design problem since they are susceptible to crack growth under a static load (internal pressure). In this investigation a new thermo-mechanical technique was used to improve the apparent fracture toughness. This could increase significantly the safety margin and life of the cylinders. The determination of fracture toughness was carried out using a newly developed small cylindrical specimen which has a considerable cost advantage over the standard compact tension specimen. Experiments on aluminium 6351-T6 cylindrical specimens confirmed the possibility of improving the toughness of this alloy.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1111/j.1460-2695.1994.tb00229.x
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  • 4
    Digitale Medien
    Digitale Medien
    Spectrochemical multielement analysis of soils and limestones
    Amsterdam : Elsevier
    Spectrochimica Acta Part B: Atomic Spectroscopy 37 (1982), S. 745-746 
    Details
    ISSN: 0584-8547
    Quelle: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Thema: Chemie und Pharmazie , Physik
    Materialart: Digitale Medien
    URL: http://linkinghub.elsevier.com/retrieve/pii/0584-8547(82)80088-8
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  • 5
    Digitale Medien
    Digitale Medien
    Catabolism of itaconic acid by preformed mats of aspergillus terreus (1962)
    Springer
    Archives of microbiology 41 (1962), S. 261-267 
    Details
    ISSN: 1432-072X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The breakdown of itaconic acid by preformed mats of a local strain of Aspergillus terreus was studied using the zone-strip technique. Low pH values restrained the uptake of itaconic acid and the accumulation of various other acids while higher pH values exerted an opposite effect. The results obtained when using various enzyme inhibitors were those anticipated on basis of the direct transformation of itaconic to aconitic acid through the fixation of CO2 and of the existence of the T.A.C. (tricarboxylic acid cycle) as a main metabolic channel operating in this organism.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00403606
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  • 6
    Digitale Medien
    Digitale Medien
    Gluconimycin, a new antibiotic (1966)
    Springer
    Archives of microbiology 54 (1966), S. 246-252 
    Details
    ISSN: 1432-072X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary A new antibiotic, gluconimycin, was isolated from Streptomyces AS 9. The systematic position of the organism is discussed. Gluconimycin has a polypeptide nature. It contains iron and gluconic acid in its molecule. Thus it has been classified as a member of sideromycins. Gluconimycin is considered from the fast moving type when chromatographed by butanolacetic acid-water. The antibiotic is active against Gram+ve, Gram-ve bacteria and some fungi. The antibiotic exerts high toxicity when injected in mice.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00408997
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  • 7
    Digitale Medien
    Digitale Medien
    Studies on the antibacterial effects of negapillin in combination with other antibiotics and sulfa drugs (1966)
    Springer
    Archives of microbiology 53 (1966), S. 396-401 
    Details
    ISSN: 1432-072X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The antibacterial effect of negapillin in combination with other antibiotics and sulfa drugs was studied using Gram+ve and Gram-ve bacteria as test organisms. Subsequently, various proportions of negapillin in combination with the antibiotics and the sulfa drugs were examined to determine the optimum proportions which exert maximum inhibitory effects on the bacterial growth. Mixtures of these antibiotics with negapillin were found more superior not only as antimicrobial agents but also for having comparatively low toxicity.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00409876
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  • 8
    Digitale Medien
    Digitale Medien
    Isolation of a fibrinolytic activator from metabolites of bacillus subtilis (1965)
    Springer
    Archives of microbiology 50 (1965), S. 326-333 
    Details
    ISSN: 1432-072X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary Isolation of a crystalline fibrinolytic activator from metabolites of Bacillus subtilis was performed by salting out with ammonium sulphate and final precipitation by gradual addition of acetone. The degree of purity of the activator at the different stages of purification was tested by paper electrophoresis and starch block electrophoresis. The activator failed to attack casein, pure fibrin, gelatin and egg albumen. The reaction between the crystalline activator and plasminogen and the effect of the resulting product on fibrin were traced by paper chromatography and by recording the UV spectra of the reacting system. Finally the effects exerted by some factors on the liquefaction of the human blood clots by the activator were investigated.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00509574
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  • 9
    Digitale Medien
    Digitale Medien
    Studies on the synthesis of valine moiety of 6-aminopenicillanic acid by preformed mats of Penicillium chrysogenum (1968)
    Springer
    Archives of microbiology 60 (1968), S. 275-281 
    Details
    ISSN: 1432-072X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary 1. The formation of valine from acetone and glycine and from propan-2-ol and glycine was demonstrated. The transformation of propan-2-ol to acetone was suggested. 2. Acetone, propan-2-ol, glycine, valine and cysteine stimulated the biosynthesis of 6-APA when supplemented separately to the medium. These compounds are arranged in a descending order with respect to their stimulative influence. 3. Coenzyme A influenced favourably the formation of 6-APA. 4. A mixture of acetone, glycine, and cysteine was the most stimulative among the other combinations tried. 5. A presumed sequence of reactions between acetone, glycine and cysteine, probably involving CoA, was thus suggested for the biosynthesis of 6-APA. The reactions involve dehydration and dehydrogenation with the liberation of two molecules of water and two hydrogen atoms.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00408548
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  • 10
    Digitale Medien
    Digitale Medien
    Biosynthesis of itaconic acid by aspergillus terreus (1962)
    Springer
    Archives of microbiology 44 (1962), S. 181-188 
    Details
    ISSN: 1432-072X
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Biologie
    Notizen: Summary The formation of itaconic, aconitic and other acids from glucose in the presence of some enzyme inhibitors or organic acids by Aspergillus terreus was studied. Moreover, the metabolic activities of the preformed mats when floated on solutions of some organic acids were traced. When the resulting information were collected together a presumed condensation reaction between acetate and succinate could be formulated. The reaction product, presumably 1, 2, 3 propane tricarboxylic acid, would undergo a dehydrogenation reaction to yield aconitic acid and subsequently itaconic acid. It has also been suggested that aconityl CoA may be the metabolic form which suits the reactions leading to the formation of itaconic acid. The presumed aconityl CoA may be formed either through a condensation reaction between acetyl CoA and succinate or acetate with succinyl CoA.
    Materialart: Digitale Medien
    URL: http://dx.doi.org/10.1007/BF00408905
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