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Integrated production of gluconic acid and xylonic acid using dilute acid pretreated corn stover by two-stage fermentation
| Content Provider | Semantic Scholar |
|---|---|
| Author | Zhou, Xuelian Zhou, Xin Liu, Guang Xu, Yong Balan, Venkatesh |
| Copyright Year | 2018 |
| Abstract | Abstract A sustainable and efficient two-stage fermentation was developed to produce gluconic acid (GA) and xylonic acid (XA) from dilute acid pretreated corn stover (DA-CS) using Gluconobacter oxydans. Cells (6.2 g/L) were obtained after four cycles of fermentation in DA-CS enzyme hydrolysate at 50 ml scale in a shake flask. With each cycle showing complete utilization of glucose with GA productivity rate at 5.3 g/L/h. The enriched cells were then collected and used to ferment DA-CS liquid stream (generated during pretreatment containing mostly xylose) at 50 ml scale in a shake flask to produce XA at a rate of 1.9 g/L/h. Subsequently, the process was scaled up to 1 L. Both GA and XA was produced at the rate of 8.7 g/L/h and 3.7 g/L/h respectively in 36 h. From 1 kg of corn stover we were able to produce 296.2 g GA and 167.4 g XA by two stage fermentation. |
| Starting Page | 18 |
| Ending Page | 22 |
| Page Count | 5 |
| File Format | PDF HTM / HTML |
| DOI | 10.1016/j.bej.2018.05.005 |
| Alternate Webpage(s) | http://kjc.njfu.edu.cn/uploads/file/20180718/20180718155706_99159.pdf |
| Alternate Webpage(s) | https://doi.org/10.1016/j.bej.2018.05.005 |
| Volume Number | 137 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
