Figure 10.

Normalized, integrated areas of the main hydration resonance at ~9.45 ppm in the ¹H HR-MAS spectra as a function of the number of CPMG rotor cycle delays or, equivalently, the Hahn echo delay time. Integrals shown are for never-dried, and dried-then-re-wetted P39 biomass that was treated with GVL-water solvents to remove hemicellulsoe and lignin (entries 9 and 10 in Table 1, respectively).