Comparative study on occurrence characteristics of matrix water in static and gas double-dynamic solid-state fermentations using low-field NMR and MRI
文献类型：期刊论文
| 作者 | He, Qin; Chen, Hong-zhang
|
| 刊名 | ANALYTICAL AND BIOANALYTICAL CHEMISTRY
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 407期号:30页码:9115-9123 |
| 关键词 | Solid-state fermentation Low-field nuclear magnetic resonance (NMR) Magnetic resonance imaging (MRI) Matrix water Cellulase |
| ISSN号 | 1618-2642 |
| 英文摘要 | The water in a solid substrate is generally divided into three forms: hygroscopic, capillary, and free. However, there are few methods available for detecting the contents of different states of water in substrates. In this paper, low-field NMR and MRI were used to analyze the water occurrence characteristics of steam-exploded corn straw in solid-state fermentation (SSF). A significant linear relationship was found between the total NMR peak areas and the total water contents with a correlation coefficient of 0.993. It was further proved to be successful in comparing the contents and distributions of different states of water in static SSF and gas double-dynamic SSF (GDD-SSF). The results showed that among the three states of water, capillary water was the main form of water present and lost in substrates during fermentation. Total water and capillary water contents did not significantly differ as a result of different sample treatments, but hygroscopic water and free water contents in static SSF were respectively 0.38 and 2.98 times that in GDD-SSF with a packing height of 3 cm after fermentation. A relatively uniform water distribution and deep-depth region for microbial growth were found in GDD-SSF, suggesting that GDD-SSF was more suitable for industrialization. This technology has great potential for achieving efficient on-line water supply through water loss detection in SSF. |
| WOS标题词 | Science & Technology ; Life Sciences & Biomedicine ; Physical Sciences |
| 类目[WOS] | Biochemical Research Methods ; Chemistry, Analytical |
| 研究领域[WOS] | Biochemistry & Molecular Biology ; Chemistry |
| 关键词[WOS] | CELLULASE PRODUCTION ; SPECTROSCOPY ; AIR ; MOISTURE ; REACTOR ; TISSUE ; STRAW |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000365865200016 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/19899]  |
| 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, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | He, Qin,Chen, Hong-zhang. Comparative study on occurrence characteristics of matrix water in static and gas double-dynamic solid-state fermentations using low-field NMR and MRI[J]. ANALYTICAL AND BIOANALYTICAL CHEMISTRY,2015,407(30):9115-9123. |
| APA | He, Qin,&Chen, Hong-zhang.(2015).Comparative study on occurrence characteristics of matrix water in static and gas double-dynamic solid-state fermentations using low-field NMR and MRI.ANALYTICAL AND BIOANALYTICAL CHEMISTRY,407(30),9115-9123. |
| MLA | He, Qin,et al."Comparative study on occurrence characteristics of matrix water in static and gas double-dynamic solid-state fermentations using low-field NMR and MRI".ANALYTICAL AND BIOANALYTICAL CHEMISTRY 407.30(2015):9115-9123. |
入库方式： OAI收割
来源：过程工程研究所
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