Hydrodynamic characteristics and mixing behaviour of Sclerotium glucanicum culture fluids in an airlift reactor with an internal loop used for scleroglucan production
文献类型：期刊论文
| 作者 | Kang, X; Wang, H; Wang, Y; Harvey, LM; McNeil, B |
| 刊名 | JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY
 |
| 出版日期 | 2001-10-01 |
| 卷号 | 27期号:4页码:208-214 |
| ISSN号 | 1367-5435 |
| 关键词 | scleroglucan airlift reactor with an internal loop (ALR-IL) gas hold-up liquid recirculation velocity mixing time |
| 其他题名 | J. Ind. Microbiol. Biotechnol. |
| 中文摘要 | The filamentous fungus, Sclerotium glucanicum NRRL 3006, was cultivated in a 0.008 m(3) airlift bioreactor with internal recirculation loop (ARL-IL) for production of the biopolymer, scleroglucan. The rheological behaviour of the culture fluid was characterised by measurement of the fluid consistency coefficient (K) and the flow behaviour index (n). Based on these measurements, the culture fluid changed from a low viscosity Newtonian system early in the process, to a viscous non-Newtonian (pseudoplastic) system. In addition, reactor hydrodynamics and mixing behaviour were characterised by measurement of whole mean gas hold-up (epsilon (g)), liquid re-circulation velocity (U-ld) and mixing time (t(m)). Under identical process conditions, the effects of the viscosity of the culture fluid and airflow rate on epsilon (g), U-ld and t(m) were examined and empirical correlations for epsilon (g), U-ld and t(m) with both superficial velocity U-g and consistency coefficient K were obtained and expressed separately. The correlations obtained are likely to describe the behaviour of real fungal culture fluids more accurately than previous correlations based on Newtonian or simulated non-Newtonian systems. |
| 英文摘要 | The filamentous fungus, Sclerotium glucanicum NRRL 3006, was cultivated in a 0.008 m(3) airlift bioreactor with internal recirculation loop (ARL-IL) for production of the biopolymer, scleroglucan. The rheological behaviour of the culture fluid was characterised by measurement of the fluid consistency coefficient (K) and the flow behaviour index (n). Based on these measurements, the culture fluid changed from a low viscosity Newtonian system early in the process, to a viscous non-Newtonian (pseudoplastic) system. In addition, reactor hydrodynamics and mixing behaviour were characterised by measurement of whole mean gas hold-up (epsilon (g)), liquid re-circulation velocity (U-ld) and mixing time (t(m)). Under identical process conditions, the effects of the viscosity of the culture fluid and airflow rate on epsilon (g), U-ld and t(m) were examined and empirical correlations for epsilon (g), U-ld and t(m) with both superficial velocity U-g and consistency coefficient K were obtained and expressed separately. The correlations obtained are likely to describe the behaviour of real fungal culture fluids more accurately than previous correlations based on Newtonian or simulated non-Newtonian systems. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
| 类目[WOS] | Biotechnology & Applied Microbiology |
| 研究领域[WOS] | Biotechnology & Applied Microbiology |
| 关键词[WOS] | BUBBLE COLUMN ; BIOREACTORS ; VELOCITY |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000171716700004 |
| 公开日期 | 2013-11-14 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/5748]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Univ Strathclyde, Dept Biosci & Biotechnol, Strathclyde Fermentat Ctr, Glasgow G1 1XW, Lanark, Scotland 2.Chinese Acad Sci, Inst Chem Met, State Key Lab Biochem Engn, Beijing 100080, Peoples R China |
| 推荐引用方式 GB/T 7714 | Kang, X,Wang, H,Wang, Y,et al. Hydrodynamic characteristics and mixing behaviour of Sclerotium glucanicum culture fluids in an airlift reactor with an internal loop used for scleroglucan production[J]. JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY,2001,27(4):208-214. |
| APA | Kang, X,Wang, H,Wang, Y,Harvey, LM,&McNeil, B.(2001).Hydrodynamic characteristics and mixing behaviour of Sclerotium glucanicum culture fluids in an airlift reactor with an internal loop used for scleroglucan production.JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY,27(4),208-214. |
| MLA | Kang, X,et al."Hydrodynamic characteristics and mixing behaviour of Sclerotium glucanicum culture fluids in an airlift reactor with an internal loop used for scleroglucan production".JOURNAL OF INDUSTRIAL MICROBIOLOGY & BIOTECHNOLOGY 27.4(2001):208-214. |
入库方式： OAI收割
来源：过程工程研究所
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