Interactions Between Lignin and Cellulose in Organic Liquid and Saline Density Gradient Columns

Authors

  • John M. Harkin
  • John R. Obst

Keywords:

<i>Populus tremuloides</i>, <i>Picea sitchensis</i>, ball-milled wood, enzyme lignin, cotton, Avicell

Abstract

Despite significant differences in their densities, lignin and carbohydrates associate so strongly, even in physical mixtures, that no separation takes place in liquid density gradient columns. Ball-milled cellulose, lignin, and wood exhibit much higher densities in salt gradients than in organic liquid gradients indicating penetration of the saline solutions into voids or "free volume" in the polymers that are inaccessible to organic liquids.

References

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Published

2007-06-05

Issue

Number 4 / Winter 1974

Section

Research Contributions

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