Bioenergy has become attractive as alternatives of gradually exhausted fossil fuel. Obtaining high grade
bioenergy from lignocellulose is attractive that can gradually meet the demand. This study reported bio-
gas and biodiesel were produced from corncob by a two-step bioprocess, biogas was produced from corn-
cob by anaerobic fermentation, then biogas residue was converted by black soldier fly larvae, and then
biodiesel was produced from larvae grease. 86.70 L biogas was obtained from 400 g corncob with the
accumulation of biogas yield of 220.71 mL/g VS
added
by anaerobic digestion. Besides, 3.17 g of biodiesel
was produced from grease after inoculating black soldier fly larvae into 400 g biogas residue.
Meanwhile, the results showed that the addition of black soldier fly larvae could be effective for the
degradation of lignocellulose and the accumulation of grease.