Evaluation of the Potential Use of Levan Polysaccharide in Paper Conservation

Figure 3

Before and after aging photos for the groups of samples that most color shift was observed: (a) group 0.0, (b) group 1.0, and (c) group 0.1. Among 7% and 10% Hlevan-applied samples (0.0.1-0.0.2/1.0.1-1.0.2/0.1.1-0.1.2), the ones that combined with egg-white sizing (1.0.1-1.0.2) showed distinguishable color shift.

(a)

(b)

(c)