Figure 7From: Ultra-structural mapping of sugarcane bagasse after oxalic acid fiber expansion (OAFEX) and ethanol production by Candida shehatae and Saccharomyces cerevisiae Deconvoluted FTIR spectra of a) Native sugarcane bagasse, b) Oxalic acid fiber expansion (OAFEX) and c) Enzyme digested cellulignin showing: the free hydroxyl (band 1), Valence vibration of H-bonded OH groups and intramolecular H-bond (band 2) and Intermolecular H-bond (band 3). Back to article page