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Improving lactic acid productivity from wheat straw hydrolysates by membrane integrated repeated batch fermentation under non-sterilized conditions
Alternative TitleBioresour. Technol.
Zhang, Yuming1,2,3; Chen, Xiangrong1; Qi, Benkun1; Luo, Jianquan4; Shen, Fei1; Su, Yi1; Khan, Rashid1; Wan, Yinhua1
2014-07-01
Source PublicationBIORESOURCE TECHNOLOGY
ISSN0960-8524
Volume163Issue:1Pages:160-166
AbstractBacillus coagulans IPE22 was used to produce lactic acid (LA) from mixed sugar and wheat straw hydrolysates, respectively. All fermentations were conducted under non-sterilized conditions and sodium hydroxide was used as neutralizing agent to avoid the production of insoluble CaSO4. In order to eliminate the sequential utilization of mixed sugar and feedback inhibition during batch fermentation, membrane integrated repeated batch fermentation (MIRB) was used to improve LA productivity. With MIRB, a high cell density was obtained and the simultaneous fermentation of glucose, xylose and arabinose was successfully realized. The separation of LA from broth by membrane in batch fermentation also decreased feedback inhibition. MIRB was carried out using wheat straw hydrolysates (29.72 g/L glucose, 24.69 g/L xylose and 5.14 g/L arabinose) as carbon source, LA productivity was increased significantly from 1.01 g/L/h (batch 1) to 2.35 g/L/h (batch 6) by the repeated batch fermentation. (C) 2014 Elsevier Ltd. All rights reserved.; Bacillus coagulans IPE22 was used to produce lactic acid (LA) from mixed sugar and wheat straw hydrolysates, respectively. All fermentations were conducted under non-sterilized conditions and sodium hydroxide was used as neutralizing agent to avoid the production of insoluble CaSO4. In order to eliminate the sequential utilization of mixed sugar and feedback inhibition during batch fermentation, membrane integrated repeated batch fermentation (MIRB) was used to improve LA productivity. With MIRB, a high cell density was obtained and the simultaneous fermentation of glucose, xylose and arabinose was successfully realized. The separation of LA from broth by membrane in batch fermentation also decreased feedback inhibition. MIRB was carried out using wheat straw hydrolysates (29.72 g/L glucose, 24.69 g/L xylose and 5.14 g/L arabinose) as carbon source, LA productivity was increased significantly from 1.01 g/L/h (batch 1) to 2.35 g/L/h (batch 6) by the repeated batch fermentation. (C) 2014 Elsevier Ltd. All rights reserved.
KeywordLactic Acid Membrane Repeated Batch Cell Recycle Wheat Straw Hydrolysates
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
DOI10.1016/j.biortech.2014.04.038
URL查看原文
Indexed BySCI
Language英语
WOS KeywordTHERMOTOLERANT BACILLUS-COAGULANS ; L(+)-LACTIC ACID ; LACTOBACILLUS-PENTOSUS ; EFFICIENT PRODUCTION ; BIOMASS ; XYLOSE ; SUGARS ; METABOLISM
WOS Research AreaAgriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS SubjectAgricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS IDWOS:000337875400022
Citation statistics
Cited Times:32[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11042
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
3.Hebei Univ, Coll Life Sci, Baoding 071002, Peoples R China
4.Tech Univ Denmark, Ctr Bioproc Engn, Dept Chem & Biochem Engn, DK-2800 Lyngby, Denmark
Recommended Citation
GB/T 7714
Zhang, Yuming,Chen, Xiangrong,Qi, Benkun,et al. Improving lactic acid productivity from wheat straw hydrolysates by membrane integrated repeated batch fermentation under non-sterilized conditions[J]. BIORESOURCE TECHNOLOGY,2014,163(1):160-166.
APA Zhang, Yuming.,Chen, Xiangrong.,Qi, Benkun.,Luo, Jianquan.,Shen, Fei.,...&Wan, Yinhua.(2014).Improving lactic acid productivity from wheat straw hydrolysates by membrane integrated repeated batch fermentation under non-sterilized conditions.BIORESOURCE TECHNOLOGY,163(1),160-166.
MLA Zhang, Yuming,et al."Improving lactic acid productivity from wheat straw hydrolysates by membrane integrated repeated batch fermentation under non-sterilized conditions".BIORESOURCE TECHNOLOGY 163.1(2014):160-166.
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