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老。Moisture,water and ethanol extractives ash total nitrogen starch,,,,,monomeric composition of the hemicellulose soluble acid 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。assumed lignin It was that was not digested throughout the process。Starch and large fractions of soluble acid extractives and 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 cm corn - silage anaerobic digestion contains a notable quantity of cell wall polymers。potentially These could be used in biorefinery processes,e。g。ethanol and xylo - oligosaccharide production。
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