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Variable pressure pulsation frequency optimization in gas double-dynamic solid-state fermentation (GDSSF) based on heat balance model
Zhao, Zhi-Min1,2; Wang, Lan1; Chen, Hong-Zhang1
2015-02-01
Source PublicationPROCESS BIOCHEMISTRY
ISSN1359-5113
Volume50Issue:2Pages:157-164
Abstract

Heat accumulation is considered as the main limitation of microbial growth in solid-state fermentation (SSF). Gas double-dynamic solid-state fermentation (GDSSF) has been devised based on our years of research to strengthen heat transfer by periodic air pressure pulsation and cycle flow. The pressure pulsation frequency is a key parameter which determines heat removal efficiency. In this work, heat balance model integrating pressure pulsation frequency, microbial metabolism, evaporative cooling and heat exchange with air was established. Pressure pulsation frequency was then optimized based on the heat balance model. Results indicated that the optimal pressure pulsation frequency was variable at different fermentation stages, under which the medium temperature increase extent reduced from 4.2 degrees C to 2.5 degrees C while the fermentation production (cellulase activity) increased by 9.23% than that under the conventional constant frequency. Therefore, the variable frequency was the preferred operation mode than the conventional constant one in GDSSF. The optimization method established in the present study has been proved effective and practical. (C) 2014 Elsevier Ltd. All rights reserved.

KeywordHeat Transfer Pressure Pulsation Frequency Gas Double-dynamic Solid-state Fermentation (Gdssf) Microbial Metabolism Cellulase
SubtypeArticle
Subject AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.procbio.2014.11.007
Indexed BySCI
Language英语
WOS KeywordScale Reactor ; Air ; Bioreactor ; Acid
Funding ProjectNational High Technology Research and Development Program of China (863 Program) [2012AA021302] ; National Key Laboratory of Biochemical Engineering [2013KF-01]
WOS Research AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering, Chemical
WOS IDWOS:000350084300001
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13832
Collection研究所(批量导入)
Corresponding AuthorWang, Lan
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
Zhao, Zhi-Min,Wang, Lan,Chen, Hong-Zhang. Variable pressure pulsation frequency optimization in gas double-dynamic solid-state fermentation (GDSSF) based on heat balance model[J]. PROCESS BIOCHEMISTRY,2015,50(2):157-164.
APA Zhao, Zhi-Min,Wang, Lan,&Chen, Hong-Zhang.(2015).Variable pressure pulsation frequency optimization in gas double-dynamic solid-state fermentation (GDSSF) based on heat balance model.PROCESS BIOCHEMISTRY,50(2),157-164.
MLA Zhao, Zhi-Min,et al."Variable pressure pulsation frequency optimization in gas double-dynamic solid-state fermentation (GDSSF) based on heat balance model".PROCESS BIOCHEMISTRY 50.2(2015):157-164.
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