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High Productivity Ethanol from Solid-State Fermentation of Steam-Exploded Corn Stover Using Zymomonas mobilis by N-2 Periodic Pulsation Process Intensification
Sun, Lele1,2; Wang, Lan1; Chen, Hongzhang1
2020-05-12
Source PublicationAPPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
ISSN0273-2289
Pages16
AbstractSolid-state fermentation, featured by water-saving, eco-friendly and high concentration product, is a promising technology in lignocellulosic ethanol industry. However, in solid-state fermentation system, large gas content inside the substrate directly leads to high oxygen partial pressure and inhibits ethanol fermentation. Z. mobilis can produce ethanol from glucose near the theoretical maximum value, but this ethanol yield would be greatly decreased by high oxygen partial pressure during solid-state fermentation. In this study, we applied N-2 periodic pulsation process intensification (NPPPI) to ethanol solid-state fermentation, which displaced air with N-2 and provided a proper anaerobic environment for Z. mobilis. Based on the water state distribution, the promotion effects of NPPPI on low solid loading and solid-state fermentation were analyzed to confirm the different degrees of oxygen inhibition in ethanol solid-state fermentation. During the simultaneous saccharification solid-state fermentation, the NPPPI group achieved 45.29% ethanol yield improvement and 30.38% concentration improvement compared with the control group. NPPPI also effectively decreased 58.47% of glycerol and 84.24% of acetic acid production and increased the biomass of Z. mobilis. By coupling the peristaltic enzymatic hydrolysis and fed-batch culture, NPPPI made the ethanol yield and concentration reach 80.11% and 55.06 g/L, respectively, in solid-state fermentation.
KeywordLignocellulosic ethanol Solid-state fermentation N-2 periodic pulsation process intensification Zymomonas mobilis Simultaneous saccharification fermentation Periodic peristalsis Steam explosion
DOI10.1007/s12010-020-03318-6
Language英语
WOS KeywordENZYMATIC-HYDROLYSIS ; SIMULTANEOUS SACCHARIFICATION ; BIOETHANOL PRODUCTION ; OXYGEN ; TEMPERATURE ; PERFORMANCE ; GAS ; TECHNOLOGIES ; INCUBATOR ; CELLULOSE
Funding ProjectNational Key Research and Development Program of China[2018YFB1501702] ; Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences)[No.XDA 21060300]
WOS Research AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
Funding OrganizationNational Key Research and Development Program of China ; Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sciences)
WOS IDWOS:000532100500001
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/40568
Collection中国科学院过程工程研究所
Corresponding AuthorWang, Lan
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing Key Lab Biomass Refining Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Sun, Lele,Wang, Lan,Chen, Hongzhang. High Productivity Ethanol from Solid-State Fermentation of Steam-Exploded Corn Stover Using Zymomonas mobilis by N-2 Periodic Pulsation Process Intensification[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2020:16.
APA Sun, Lele,Wang, Lan,&Chen, Hongzhang.(2020).High Productivity Ethanol from Solid-State Fermentation of Steam-Exploded Corn Stover Using Zymomonas mobilis by N-2 Periodic Pulsation Process Intensification.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,16.
MLA Sun, Lele,et al."High Productivity Ethanol from Solid-State Fermentation of Steam-Exploded Corn Stover Using Zymomonas mobilis by N-2 Periodic Pulsation Process Intensification".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY (2020):16.
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