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Article
The past and present of starch chemistry
Le présent travail retrace l'évolution qu'a subie la chimie de l'amidon de son origine à nos jours.
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Article
Über Feinbau, Festigkeit und Kontraktilität tierischer Gewebe
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Article
La texture de la cellulose animale
Electron micrographs of animal cellulose (tunicin ofPhallusia mammillata) show continuous fibrils of 200 Å width. The fibrils are flattened and seem to exhibit a longitudinal periodicity of 200 Å. Anastomoses hav...
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Article
Biological Significance of Folding and Unfolding of Protein Molecules
IN an interesting paper which appeared recently in Nature, Goldacre and Lorch1 put forward the hypothesis that folding and unfolding of protein chains plays a decisive part in amœboid movement and cytoplasmic str...
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Article
Contribution à l'étude de l'héparine
Evidence has been obtained for the presence in heparin of glucosamine-N-sulfate groups (-NH-SO3H) by the elimination of other alternatives and by transformation of heparin into an inactive nitroso compound.
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Article
Über die Auflösung der Cellulose in organischen Lösungsmitteln
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Article
La constitution de l'acide hyaluronique
The constitution of hyaluronic acid has been determined.
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Article
Constitution of ‘Pure’ Cellulose
THE word ‘cellulose’ possesses two connotations : in a technical sense it denotes products obtained by certain processes from vegetable material ; in a chemical sensé it is commonly used for a linear high-mole...
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Article
Fibrous Proteins
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Article
Classification of Fibrous Proteins
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Article
Die Konstitution des Glykogens
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Article
Structure of Amylopectin
Since starch can be split into maltose, the opinion has been widespread that starch is composed of chains of the maltose type1. Some authors, however, suggested a branched or netted structure2,3; comparative meas...
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Article
Le degré de polymérisation de l'amylose, de l'amylopectine et du glycogène
A colorimetric method based on the reducing power of the aldehydic end group has been developed in order to determine the M. W. of polysaccharides. It has been found that corn amylose contains chain molecules ...
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Article
Cristallisation de l'α-amylase de pancréas
The crystallization and recrystallization of pancreas α-amylase are described.
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Article
L'isolement de l'α-amylase de pancréas
The α-amylase of hog pancreas has been purified and the degree of purity controled by electrophoresis. The active substance is a protein which can dissociate in an unstable high molecular component and a therm...
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Article
Les propriétés mécaniques du caoutchouc
A survey of recent work on the theories of the peculiar mechanical behaviour of substances with rubber-like properties is given. All the theories are based on the assumption that these substances (including ru...
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Article
Enoltitration
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Article
über den Zustand der Hochpolymeren in Lösung
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Ausgehend von den in Lösungen niedermolekularer Stoffe obwaltenden VerhÄltnissen wird versucht, den Lösungszu...
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Article
Über molekulare Ordnungszustände und einige durch sie bedingte Eigenschaften in makromolekularen Stoffen. Bemerkungen zu der gleichnamigen Arbeit von F. H. Müller
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Article
Die Anordnung der Glucosereste im Glycogen