AI Summary & Key Takeaways
AI InsightThe highest ethanol accumulation, 9.66 g l-1, and a yield of 0.41 g g-1 were achieved at the lowest tested flow rate, 2.28 vv-1 min-1, from 35 g reducing sugar l-1.
📌 3 Key Takeaways
Abstract
Ethanol production from sunflower seed hull hydrolysate was evaluated using Pichia stipitis NRRL Y-7124 in this study. The hydrolysate was prepared with 0.7 M H2SO4 and a solid/liquid ratio of 1/5 (w/v) at 90 °C. Fermentation of detoxified hydrolysate was carried out in a batch bioreactor system under uncontrolled pH operation at initial pH of 6 at 30 °C. The influence of different aeration rates on the fermentability of hydrolysates was investigated. The highest ethanol accumulation, 9.66 g l-1, and a yield of 0.41 g g-1 were achieved at the lowest tested flow rate, 2.28 vv-1 min-1, from 35 g reducing sugar l-1.
Özet
Ethanol production from sunflower seed hull hydrolysate was evaluated using Pichia stipitis NRRL Y-7124 in this study. The hydrolysate was prepared with 0.7 M H2SO4 and a solid/liquid ratio of 1/5 (w/v) at 90 °C. Fermentation of detoxified hydrolysate was carried out in a batch bioreactor system under uncontrolled pH operation at initial pH of 6 at 30 °C. The influence of different aeration rates on the fermentability of hydrolysates was investigated. The highest ethanol accumulation, 9.66 g l-1, and a yield of 0.41 g g-1 were achieved at the lowest tested flow rate, 2.28 vv-1 min-1, from 35 g reducing sugar l-1.