Included in this submission are the following supplementary materials that were unable to be included in the article, but the authors would like to make available for other researchers: ● Raw data csv files and R analysis code ● Supplemental graphs ● Full bibliography ● Sources of Materials document ● Visible and UV photo documentation jpeg files and comparative PowerPoint ● Additional experimental design images and notes PowerPoint

Below is the abstract for the forthcoming Book and Paper Group Annual article at the time of this submission. Rigid polysaccharide gels are a vital area of research for library and paper conservation, as they are still a relatively new material in the field. This experiment investigates anecdotal concerns of discoloration in gelatin-sized papers treated with gellan gum and, in doing so, creates the largest datasets of its type published to date. Five papers with different sizings—no sizing, antique gelatin, modern gelatin, alum rosin, and starch-based AKD—were treated with water, Ticagel gellan gum, Kelcogel gellan gum, and agarose. Half of the treatments were applied with Japanese kozo paper as interleaving. This resulted in 40 different paper-treatment-application sample groups. After treatment, half of each sample group was artificially degraded. All samples were photographed in visible and UV light and measured for color, pH, and conductivity before treatment, after treatment, and after artificial degradation. Statistical analyses carried out on the resulting data identified which combinations of paper, treatment, and application responded differently than the controls after artificial degradation. Analysis found the different combinations of paper and treatment types (both direct and interleaved) had a variety of measurable effects on the papers’ color change, pH, and conductivity, but none pose a serious threat to long-term preservation. These data and the visual imaging provide a more nuanced look into polysaccharide gels. The authors hope this data will continue to be used by other researchers to advance the understanding of gel use in library and paper conservation.

Last modified

• 08/22/2022

Creator

• Karissa Muratore
• Haley Carter

DOI

• https://doi.org/10.21985/n2-653y-1294

Publisher

• Northwestern University

Date created

• 2022-08-22

Resource type

• Dataset

License

• Creative Commons CC0 1.0 Universal

Total Size

• 356 MB