“…Alternatively, electrohydrolysis (EH) was reported to depolymerize lignin, where C-C bonds and C-O-C bonds are cleaved synergistically by direct anodic oxidation [32,34] and a combined effect of ohmic heating, electrophoresis and electro-osmosis [35,36]. Indeed, the cumulative methane yield of RS was improved by 31.4%-42.4% using EH pretreatment [37,38]. The electrochemical pretreatment can breakdown lignin and lignocellulose, exposing cellulose and hemicellulose for microbial utilization.…”