Production of butanol (a biofuel) from agricultural residues: Part I - Use of barley straw hydrolysate
Qureshi, N; Saha, BC; Dien, B; Hector, RE; Cotta, MA
| HERO ID | 1462373 |
|---|---|
| In Press | No |
| Year | 2010 |
| Title | Production of butanol (a biofuel) from agricultural residues: Part I - Use of barley straw hydrolysate |
| Authors | Qureshi, N; Saha, BC; Dien, B; Hector, RE; Cotta, MA |
| Journal | Biomass and Bioenergy |
| Volume | 34 |
| Issue | 4 |
| Page Numbers | 559-565 |
| Abstract | Fermentation of dilute sulfuric acid barley straw hydrolysate (BSH; undiluted/untreated) by Clostridium beijerinckii P260 resulted in the production of 7.09 gL(-1) ABE (acetone butanol ethanol), an ABE yield of 0.33, and productivity of 0.10 gL(-1) h(-1). This level of ABE is much less than that observed in a control experiment (21.06 gL(-1)) where glucose (initial concentration 60 gL(-1)) was used as a substrate. In the control experiment, an ABE yield of 0.41 and productivity of 0.31 gL(-1) h(-1) were observed. This comparison suggested that BSH is toxic to the culture. To reduce this potential toxicity effect, BSH was treated with lime [Ca(OH)(2)] followed by fermentation. The treated BSH resulted in a successful fermentation and ABE concentration of 26.64 was achieved. This was superior to both glucose and untreated BSH (initial sugar 60 gL(-1)) fermentations. In this fermentation, an ABE yield of 0.43 and productivity of 0.39 gL(-1) h(-1) (390% of untreated/undiluted BSH) was obtained. It should be noted that using lime treated BSH, a specific productivity of 0.55 h(-1) was obtained as compared to 0.12 h(-1) in the control fermentation suggesting that more carbon was directed to product formation. Published by Elsevier Ltd. |
| Doi | 10.1016/j.biombioe.2009.12.024 |
| Wosid | WOS:000276423600020 |
| Url | http://linkinghub.elsevier.com/retrieve/pii/S0961953409002712 |
| Is Certified Translation | No |
| Dupe Override | No |
| Comments | Source: Web of Science WOS:000276423600020 |
| Is Public | Yes |
| Keyword | Butanol; Clostridium beijerinckii P260; Agricultural residue hydrolysate; Barley (Hordeum vulgare) straw; Overliming; Productivity; Yield; Fermentation |