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The effect of gas double-dynamic on mass distribution in solid-state fermentation
Alternative TitleEnzyme Microb. Technol.
Chen, Hong-Zhang1; Zhao, Zhi-Min1,2; Li, Hong-Qiang1
2014-05-10
Source PublicationENZYME AND MICROBIAL TECHNOLOGY
ISSN0141-0229
Volume58-59Issue:1Pages:14-21
AbstractThe mass distribution regularity in substrate of solid-state fermentation (SSF) has rarely been reported due to the heterogeneity of solid medium and the lack of suitable instrument and method, which limited the comprehensive analysis and enhancement of the SSF performance. In this work, the distributions of water, biomass, and fermentation product in different medium depths of SSF were determined using near-infrared spectroscopy (NIRS) and the developed models. Based on the mass distribution regularity, the effects of gas double-dynamic on heat transfer, microbial growth and metabolism, and product distribution gradient were systematically investigated. Results indicated that the maximum temperature of substrate and the maximum carbon dioxide evolution rate (CER) were 39.5 degrees C and 2.48 mg/(hg) under static aeration solid-state fermentation (SASSF) and 33.9 degrees C and 5.38 mg/(h g) under gas double-dynamic solid-state fermentation (GDSSF), respectively, with the environmental temperature for fermentation of 30 +/- 1 degrees C. The fermentation production (cellulase activity) ratios of the upper, middle, and lower levels were 1:0.90:0.78 at seventh day under SASSF and 1:0.95:0.89 at fifth day under GDSSF. Therefore, combined with NIRS analysis, gas double-dynamic could effectively strengthen the solid-state fermentation performance due to the enhancement of heat transfer, the stimulation of microbial metabolism and the increase of the homogeneity of fermentation products. (c) 2014 Elsevier Inc. All rights reserved.; The mass distribution regularity in substrate of solid-state fermentation (SSF) has rarely been reported due to the heterogeneity of solid medium and the lack of suitable instrument and method, which limited the comprehensive analysis and enhancement of the SSF performance. In this work, the distributions of water, biomass, and fermentation product in different medium depths of SSF were determined using near-infrared spectroscopy (NIRS) and the developed models. Based on the mass distribution regularity, the effects of gas double-dynamic on heat transfer, microbial growth and metabolism, and product distribution gradient were systematically investigated. Results indicated that the maximum temperature of substrate and the maximum carbon dioxide evolution rate (CER) were 39.5 degrees C and 2.48 mg/(hg) under static aeration solid-state fermentation (SASSF) and 33.9 degrees C and 5.38 mg/(h g) under gas double-dynamic solid-state fermentation (GDSSF), respectively, with the environmental temperature for fermentation of 30 +/- 1 degrees C. The fermentation production (cellulase activity) ratios of the upper, middle, and lower levels were 1:0.90:0.78 at seventh day under SASSF and 1:0.95:0.89 at fifth day under GDSSF. Therefore, combined with NIRS analysis, gas double-dynamic could effectively strengthen the solid-state fermentation performance due to the enhancement of heat transfer, the stimulation of microbial metabolism and the increase of the homogeneity of fermentation products. (c) 2014 Elsevier Inc. All rights reserved.
KeywordMass Distribution Gradient Gas Double-dynamic Solid-state Fermentation (Gdssf) Near-infrared Spectroscopy (Nirs) Enzyme Production Cellulase
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1016/j.enzmictec.2014.02.007
URL查看原文
Indexed BySCI
Language英语
WOS KeywordINFRARED REFLECTANCE SPECTROSCOPY ; CHEMICAL-COMPOSITION ; STRESS-RESPONSE ; AIR ; TECHNOLOGIES ; TEMPERATURE ; PREDICTION ; GRADIENTS ; CELLULASE ; PRESSURE
WOS Research AreaBiotechnology & Applied Microbiology
WOS SubjectBiotechnology & Applied Microbiology
WOS IDWOS:000336464600003
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/10887
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Chen, Hong-Zhang,Zhao, Zhi-Min,Li, Hong-Qiang. The effect of gas double-dynamic on mass distribution in solid-state fermentation[J]. ENZYME AND MICROBIAL TECHNOLOGY,2014,58-59(1):14-21.
APA Chen, Hong-Zhang,Zhao, Zhi-Min,&Li, Hong-Qiang.(2014).The effect of gas double-dynamic on mass distribution in solid-state fermentation.ENZYME AND MICROBIAL TECHNOLOGY,58-59(1),14-21.
MLA Chen, Hong-Zhang,et al."The effect of gas double-dynamic on mass distribution in solid-state fermentation".ENZYME AND MICROBIAL TECHNOLOGY 58-59.1(2014):14-21.
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