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Comparative study on occurrence characteristics of matrix water in static and gas double-dynamic solid-state fermentations using low-field NMR and MRI
He, Qin; Chen, Hong-zhang
2015-12-01
Source PublicationANALYTICAL AND BIOANALYTICAL CHEMISTRY
ISSN1618-2642
Volume407Issue:30Pages:9115-9123
AbstractThe 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.
KeywordSolid-state Fermentation Low-field Nuclear Magnetic Resonance (Nmr) Magnetic Resonance Imaging (Mri) Matrix Water Cellulase
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Physical Sciences
DOI10.1007/s00216-015-9077-4
Indexed BySCI
Language英语
WOS KeywordCELLULASE PRODUCTION ; SPECTROSCOPY ; AIR ; MOISTURE ; REACTOR ; TISSUE ; STRAW
WOS Research AreaBiochemistry & Molecular Biology ; Chemistry
WOS SubjectBiochemical Research Methods ; Chemistry, Analytical
Funding OrganizationNational High Technology Research and Development Program of China (863 Program)(2012AA021302)
WOS IDWOS:000365865200016
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19899
Collection生化工程国家重点实验室
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
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.
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