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  • Nature Publishing Group  (19)
  • 1
    Electronic Resource
    Electronic Resource
    Hexuronic Acid as the Antiscorbutic Factor (1932)
    [s.l.] : Nature Publishing Group
    Nature 130 (1932), S. 888-888 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] A CHARACTERISTIC property of Prof. Szent-Györgyi's hexuronic acid is its behaviour towards iodine. Two atoms of iodine are taken up in aqueous solution (neutral or acid) with formation of two molecules of hydrogen iodide. We find that this is due to oxidation at a double bond. The intervention ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/130888a0
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  • 2
    Electronic Resource
    Electronic Resource
    The Absorption Spectrum of Hexuronic Acid (1932)
    [s.l.] : Nature Publishing Group
    Nature 130 (1932), S. 205-205 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] As part of a systematic study1 of Prof. Szent-Györgyi's ‘hexuronic acid’ we have investigated quantitatively the absorption spectra of hexuronic acid, glycuronic acid, galacturonic acid, tetramethyl γ-fructose, and other carbohydrate derivatives. In view of the fact that ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/130205a0
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  • 3
    Electronic Resource
    Electronic Resource
    Hexuronic Acid as the Antiscorbutic Factor (1932)
    [s.l.] : Nature Publishing Group
    Nature 129 (1932), S. 576-577 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE ‘hexuronic acid’ prepared from suprarenal glands by Prof. Szent-Györgyi was a cream-coloured micro-crystalline powder, m.p. 184°–187° (decomp.). On recrystallisation from methyl alcohol-ether the substance was obtained in irregular aggregates of rectangular crystals, which were almost ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/129576c0
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  • 4
    Electronic Resource
    Electronic Resource
    Constitution of Ascorbic Acid (1933)
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 617-617 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] WE have now confirmed the accuracy of the structure (I) cooH.co.co.CHOH.CHOH.CH2OH which we had previously assigned to the first (reversible) oxidation product of ascorbic acid on the ground that it yields oxalic acid and trihydroxybutyric acid (l–threonic acid) on further ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/131617a0
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  • 5
    Electronic Resource
    Electronic Resource
    Constitution of Vitamin C (1933)
    [s.l.] : Nature Publishing Group
    Nature 131 (1933), S. 402-402 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN a recent communication1 Micheel and Kraft have proposed a structure for ascorbic acid of a furane-carboxylic acid type. This structure was considered by us some months ago, and although attractive as explaining many of the chemical properties, we did not put it forward, ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/131402a0
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  • 6
    Electronic Resource
    Electronic Resource
    The ϵ-Galactan of Larch Wood (1941)
    [s.l.] : Nature Publishing Group
    Nature 147 (1941), S. 25-26 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE occurrence of this material, which is of considerable interest in connexion with the chemistry of wood formation, has been recognized for some time and it has been shown to contain d-galactose and l-arabinose residues1. In a recent article2 descriptions are ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/147025b0
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  • 7
    Electronic Resource
    Electronic Resource
    Estimation of Uronic Anhydride Residues in Polysaccharides (1938)
    [s.l.] : Nature Publishing Group
    Nature 142 (1938), S. 912-913 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] IN the course of work on the constitution of certain wood starches and other polysaccharides containing uronic acid residues, we have found it necessary to investigate more closely the accuracy of the analytical methods used in the estimation of the uronic acid content. The usual procedure ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/142912b0
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  • 8
    Electronic Resource
    Electronic Resource
    Structure of Alginic Acid (1939)
    [s.l.] : Nature Publishing Group
    Nature 143 (1939), S. 857-857 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALGINIC acid, the industrial importance of which is increasing, constitutes a large proportion of the dry weight of certain seaweeds. It is noteworthy among polysaccharides in that it appears to be built up entirely of d-mannuronic acid residues, although its resistance to hydrolysis is so ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/143857a0
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  • 9
    Electronic Resource
    Electronic Resource
    Separation and Identification of Methylated Sugars on the Paper Chromatogram (1948)
    [s.l.] : Nature Publishing Group
    Nature 161 (1948), S. 720-720 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] THE identification of the products of hydrolysis of a methylated polysaccharide composed of many different sugar residues is a tedious and difficult task, especially when the polysaccharide is available only in small quantities. We have found., however, that many of the methylated sugars can be ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/161720a0
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  • 10
    Electronic Resource
    Electronic Resource
    Structure of Starch and Cellulose (1947)
    [s.l.] : Nature Publishing Group
    Nature 159 (1947), S. 97-97 
    Details
    ISSN: 1476-4687
    Source: Nature Archives 1869 - 2009
    Topics: Biology , Chemistry and Pharmacology , Medicine , Natural Sciences in General , Physics
    Notes: [Auszug] ALTHOUGH the characteristic features of the chemistry of starch and cellulose are satisfactorily represented by the commonly accepted structures involving chains of glucopyranosido residues, which are unbranched in cellulose and amylose, but branched in amylopectin, certain difficulties remain ...
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1038/159097a0
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