and four-fifths diluted
liquid hydrolysate of dilute acid-pretreated rice straw before and
after membrane (NTR-729HF, NTR-7250, and ESNA3) separation.
The initial concentration of S. cerevisiae was 50 g L–1 of wet cells.
Ethanol fermentation was performed under oxygen limited
conditions at 30 C with mild agitation in 50 mL bottles equipped
with an outlet for CO2. Sampling was conducted at 0, 3, 6, 9, and
24 h.