Figure 2From: Multi-scale structural and chemical analysis of sugarcane bagasse in the process of sequential acid–base pretreatment and ethanol production by Scheffersomyces shehatae and Saccharomyces cerevisiaeTransmitted light microscopic (TLM) view of natural sugarcane bagasse (SB), cellulignin (after dilute acid hydrolysis), NaOH pretreatment of cellulignin, and enzyme digested bagasse. (a) Natural SB (200 and 20 μm), (b) acid pretreated bagasse or cellulignin (200 and 20 μm), (c) sodium hydroxide pretreated cellulignin (200 and 20 μm), and (d) enzyme hydrolyzed bagasse (200 and 20 μm). SB, sugarcane bagasse; TLM, transmitted light microscopy.Back to article page