Fig. 4
From: Biodegradation of alkaline lignin by Bacillus ligniniphilus L1
The variation of absorption peaks area of part aromatic compounds identified by GC–MS during 7 days’ incubation with lignin as single carbon source with uninoculated sample as control. Numbers represent the aromatic compounds were same with Table 1, and C2, C7, C8, C9, C10, and C11 represent the compounds peaks of control sample