Effect of temperature on ethanol distribution and ethanol stripping efficiency in the gas stripping experiment. (A) Ethanol content. (B) Stripping efficiency. Gas stripping conditions: 70% moisture content, pH 5.0, 22 g ethanol/100 g SSS (DM), 2.0 cm long, and 0.15 cm thickness of particle. DM, dry matter; GS-SSF, gas stripping solid state fermentation; SSS, sweet sorghum stalk.