Acetylation of xanthan gum in densified carbon dioxide (CO2)

Henky Muljana*, Asaf Kleopas Sugih, Anastasia Prima Kristijarti, Rifandi Karlus, Ricky Kurnia, Crist Evan, Francesco Picchioni

*Corresponding author for this work

Research output: Contribution to journalArticleAcademicpeer-review

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Xanthan Gum (XG), known as a microbial polysaccharide, is potential renewable resources in the biodegradable plastics synthesis. However, native xanthan gum needs to be chemically modified in order to improve its properties required for further application as thermoplastics material. We here report our preliminary studies on the acetylation of xanthan gum in densified carbon dioxide (CO2) as the 'green' solvent. Within the experimental conditions, xanthan acetates with a broad range of degree of substitution (DS) values (1.27-7.08) were obtained. In addition, the products give a higher thermal stability and an altered morphology compared with their native counterparts.

Original languageEnglish
Pages (from-to)21551-21558
Number of pages8
JournalMaterials Today: Proceedings
Issue number10
Publication statusPublished - 2018
Event3rd International Conference on Green Chemical Engineering and Technology: Materials Science, GCET 2017 - Melaka, Malaysia
Duration: 7-Nov-20178-Nov-2017


  • Acetylation
  • Densified CO
  • Xanthan gum

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