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An Original Method of Esterification of Cellulose and Starch

  • Samuel Girardeau
  • Jorge Aburto
  • Carlos Vaca-Garcia
  • Isabelle Alric
  • Elizabeth Borredon
  • Antoine Gaset
Chapter

Abstract

New acylation techniques were developed for the fabrication of fatty esters of cellulose and starch. They exclude the use of organic solvents and are readily achieved. Emulsification of the fatty acid in water allowed the intimate contact between the fatty reagent and the polysaccharide. Fatty acid salts (soap) were used as both catalyst and emulsifying agent. Reaction conditions were optimized using an experimental design. Starch and cellulose octanoates were obtained having a DS of 0.52 and 0.23 with a recuperation yield of 70 and 85 %, respectively. Both polysaccharide esters showed a marked hydrophobic character.

Keywords

Potato Starch Fatty Ester Octanoic Acid Recovery Yield Fatty Acid Salt 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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References

  1. 1.
    Malm, C., Mench, J., Kendall, D., and Hiatt, G., 1951. Aliphatic acid esters of cellulose. Preparation by acid chloride-pyridine procedure. Ind. Eng. Chem., 43: 684–688.CrossRefGoogle Scholar
  2. 2.
    Vaca-Garcia, C., and Borredon, M. E., 1999. Solvent-free fatty acylation of cellulose and lignocellulosic wastes II. Reactions with fatty acids. Bioresource Technol. 70: 135–142.CrossRefGoogle Scholar
  3. 3.
    Aburto, J., Alric, I., and Borredon, E., 1999. Preparation of long-chain esters of starch using fatty acid chlorides in the absence of an organic solvent. Starch/Stärke, 51: 132–135.CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media New York 2001

Authors and Affiliations

  • Samuel Girardeau
    • 1
  • Jorge Aburto
    • 1
  • Carlos Vaca-Garcia
    • 1
  • Isabelle Alric
    • 1
  • Elizabeth Borredon
    • 1
  • Antoine Gaset
    • 1
  1. 1.Laboratoire de Chimie Agro-Industrielle, UMR INRA, Ecole Nationale Supérieure de Chimie de ToulouseINP ToulouseToulouse Cedex 04France

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