Figure 7.

Hierarchical clustering heatmap of aspen wood powder treated with different enzymes. Samples (average of six acquisition data) are in columns. sLac and DyP2, 0.2mg/ml each, were added to individual or mixture treatments. Heat-denatured sLac (d.sLac) was included as a control of sLac. The top 25 ToF-SIMS peaks, ranked by t-test/ANOVA, are shown in columns; the m/z values for lignin are written in red while m/z values for polysaccharides are written in black. Feature peaks for G-lignin, S-lignin, and aromatic rings (Ar) (Saito et al., 2005) are labeled.