Fig. 4

Scanning electron microscopy of unrefined and refined pretreated sugarcane bagasse. (A) HPTB unrefined; (B) HPTB refined (1 mm x 3000 RPM); (C) SEPTB unrefined; (D) SEPTB refined (1 mm x 3000 RPM).

Scanning electron microscopy of unrefined and refined pretreated sugarcane bagasse. (A) HPTB unrefined; (B) HPTB refined (1 mm x 3000 RPM); (C) SEPTB unrefined; (D) SEPTB refined (1 mm x 3000 RPM).