Carbohydrates of Weil-Defined Molecular Weight in Plant Juices

Abstract

THE attempt to bring the solid carbohydrates of plants and animals, for example, cellulose, starch, glycogen and their derivatives into solution has so far resulted in polydisperse systems not possessing well-defined molecular weights1. This fact may be taken as an indication that the question is wrongly put ; that such structures as cellulose and starch do not spontaneously form particles of definite mass (molecules) and therefore cannot be broken down to real molecular dispersion without profound chemical change.

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References

  1. 1

    Kraemer, E. O., and Lansing, W. D., J. Phys. Chem., 39, 153(1935), for cellulose. Lamm, Ole, Kolloid-Z., 69, 44 (1934), for starch. Record, Basil R. (unpublished), for glycogen.

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SVEDBERG, T., GRALÉN, N. Carbohydrates of Weil-Defined Molecular Weight in Plant Juices. Nature 142, 261–262 (1938). https://doi.org/10.1038/142261a0

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