Gellan residues on paper: quantification and implication for paper conservation

Author:

Henniges Ute,Brückle Irene,Khaliliyan Hajar,Böhmdorfer Stefan

Abstract

AbstractGels prepared from the polysaccharide gellan are used for aqueous poulticing treatments in paper conservation when the application of water must be restricted. Optimal use of the rigid, yet shapeable gel requires direct contact with the paper surface, which carries the risk of gel residues on the treated surface. We used acid methanolysis as a destructive analytical method to detect rhamnose as a component of gellan, which was undetectable with ATR-FTIR spectroscopy. We show that there is a significant probability of leaving gellan residues on the paper. Conservators should be aware of this potential side effect when considering the use of gellan poultices in direct contact with paper objects.

Publisher

Springer Science and Business Media LLC

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