Figure 8
Transmission electron microscopic photomicrographs of dilute acid/ferrous ion-pretreated corn stover pretreated at 150°C, 0.5 wt% H 2 SO 4 + 5 mM FeSO 4 for 20 minutes. (A) The cell corner regions including the exposed middle lamella and the primary cell wall display the most disruption of the lamellar cell wall structure. (B) Higher-magnification view of the delamination and fibrillation of the cell wall surface. CC = cell corner; CML = compound middle lamella; SCW = secondary cell wall.