Figure 4

Gas chromatography-mass spectrometry results of oil products before (A) and after (B) two-phase anaerobic digestion: 16.27 dodecane; 21.09 tetradecane; 22.87 pentadecane; 25.08 2,6,10-trimethylpentadecane; 25.81 pristane; 27.05 Adenosine; 27.87 dibutyl phthalate; 28.87 10,13-eicosadienoic acid, methyl eater; 30.00 octadecane; 33.96 1,2-benzenedicarboxylic acid, diisooctyl ester; 35.43 5α-cholestane; 38.05 lanostane; 40.13 Hopane; 40.64 ambreinolide; 42.38 acetic acid, 4-acetoxy-3-(3,7,11-trimethyi-dodeca-2,6,10-trienyl)-phenyl ester; 43.96 Lupan-3-one; 46.06 3,12-Oleandione.