The utilization of different chemical constituents of corn silage during industrial-scale anaerobic digestion was, determined. Corn silage together with the resulting solid digestate generated during biogas production were collected from an industrial. Plant during a regular operating period. Moisture water and, ethanol extractives ash total nitrogen,,,,,, starch cellulose The monomeric composition, of hemicellulose acid soluble and acid insoluble lignin were measured in both corn silage and. Corn silage solid digestate. The relative consumption of each component of corn silage during its anaerobic digestion was. Estimated with reference to acid insoluble lignin. It was assumed that lignin was not digested throughout the process. Starch. And large fractions of extractives and acid soluble lignin were digested. In contrast the digestion, of cellulose and particularly. Hemicellulose were limited (40% and 29% respectively). Of the hemicellulose monomers xylose was, the least digested (20%).? The present work shows that the digestate produced by commercial corn-silage anaerobic digestion contains a notable quantity. Of cell wall polymers. These could potentially be used in, biorefinery processes e.g. Ethanol and xylo-oligosaccharide production.
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