Hemicellulose sugar recovery from steam-exploded wheat straw for microbial oil production
文献类型：期刊论文
| 作者 | Peng Xiaowei; Chen Hongzhang
|
| 刊名 | PROCESS BIOCHEMISTRY
 |
| 出版日期 | 2012-02-01 |
| 卷号 | 47期号:2页码:209-215 |
| 关键词 | Hemicellulose Straw Single cell oil Biodiesel Steam explosion |
| ISSN号 | 1359-5113 |
| 通讯作者 | Chen, HZ |
| 英文摘要 | There are currently few successful examples of using straw hemicellulose as a carbon source in the fermentation industry. In this paper, hemicellulose hydrolysates were recovered from steam-exploded wheat straw (SEWS) and used to produce microbial oil. The effects of the steam explosion treatment conditions, the elution temperature and the ratio of elution water to SEWS on sugar recovery were examined. A broth with 3.8 gl(-1) of reducing sugar and 22.3 gl(-1) of total soluble sugars was obtained with a 10-fold excess (w/w) of water at 40 degrees C to wash the SEWS treated under steam explosion conditions at 200 degrees C for 5 min. This broth was used to produce microbial oil by the oleaginous fungus Microsphaeropsis sp., which was able to secrete xylanase to degrade oligosaccharides from straw hemicellulose and accumulate microbial oil. Under optimized conditions, the oil concentration was 2.6 gl(-1). The yield of oil from sugar consumed was 0.14 g g(-1). The microbial oil produced by this research could be used as feedstock for biodiesel production because the microbial oil was primarily composed of neutral lipids. This research establishes a novel protocol for microbial oil production from straw hemicellulose. (C) 2011 Elsevier Ltd. All rights reserved. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Technology |
| 类目[WOS] | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering, Chemical |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering |
| 关键词[WOS] | GAMMA-LINOLENIC ACID ; RICE STRAW ; MICROORGANISMS ; FERMENTATION ; ACCUMULATION ; TEMPERATURE ; BIOETHANOL ; EXPLOSION ; REACTOR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000300133200005 |
| 公开日期 | 2013-10-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/4306]  |
| 专题 | 过程工程研究所_生化工程国家重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Peng Xiaowei,Chen Hongzhang. Hemicellulose sugar recovery from steam-exploded wheat straw for microbial oil production[J]. PROCESS BIOCHEMISTRY,2012,47(2):209-215. |
| APA | Peng Xiaowei,&Chen Hongzhang.(2012).Hemicellulose sugar recovery from steam-exploded wheat straw for microbial oil production.PROCESS BIOCHEMISTRY,47(2),209-215. |
| MLA | Peng Xiaowei,et al."Hemicellulose sugar recovery from steam-exploded wheat straw for microbial oil production".PROCESS BIOCHEMISTRY 47.2(2012):209-215. |
入库方式： OAI收割
来源：过程工程研究所
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