MOESM1 of Enhanced extraction of butyric acid under high-pressure CO2 conditions to integrate chemical catalysis for value-added chemicals and biofuels

Additional file 1: Figure S1. The different extraction efficiencies of solvents used for butyric acid extraction. Figure S2. A comparison of extraction efficiencies at different extraction times. Figure S3. pH changes after CO2 purging. Figure S4. Microbial growth in fresh medium including 1 g/L butyl butyrate with or without tetradecane treatment.