Pretreatment of Cottage Cheese to Enhance Biogas Production

Table 4

Cumulated methane yield at different concentrations of lipase and protease.

Concentration of enzymes (%)	Lipase	Protease
0.02	327	307
0.04	312	337
0.06	311	396
0.08	350	329
0.1	339	344
0.2	348	318
0.4	318	320
0.5	320	328