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Title:
Wastewater recycling technology for fermentation in polyunsaturated fatty acid production
Author: Song, Xiaojin1,3; Ma, Zengxin1,3,4; Tan, Yanzhen1; Zhang, Huidan1,3,4; Cui, Qiu1,2,3
Source: BIORESOURCE TECHNOLOGY
Issued Date: 2017-07-01
Volume: 235, Pages:79-86
Keyword: Wastewater ; Fermentation ; Polyunsaturated fatty acid ; Aurantiochytrium ; Mortierella alpina
DOI: 10.1016/j.biortech.2017.03.034
DOC Type: Article
English Abstract: To reduce fermentation-associated wastewater discharge and the cost of wastewater treatment, which further reduces the total cost of DHA and ARA production, this study first analyzed the composition of wastewater from Aurantiochytrium (DHA) and Mortierella alpina (ARA) fermentation, after which wastewater recycling technology for these fermentation processes was developed. No negative effects of DHA and ARA production were observed when the two fermentation wastewater methods were crossrecycled. DHA and ARA yields were significantly inhibited when the wastewater from the fermentation process was directly reused. In 5-L fed-batch fermentation experiments, using this cross-recycle technology, the DHA and ARA yields were 30.4 and 5.13 g L-1, respectively, with no significant changes (P > 0.05) compared to the control group, and the water consumption was reduced by half compared to the traditional process. Therefore, this technology has great potential in industrial fermentation for polyunsaturated fatty acid production. (C) 2017 Elsevier Ltd. All rights reserved.
WOS Headings: Science & Technology ; Life Sciences & Biomedicine ; Technology
WOS Subject: Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS Subject Extended: Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS Keyword Plus: AURANTIOCHYTRIUM SP SD116 ; SACCHAROMYCES-CEREVISIAE ; MORTIERELLA-ALPINA ; DHA PRODUCTION ; STRAIN IMPROVEMENT ; GROWTH-INHIBITION ; SCHIZOCHYTRIUM SP ; LIPID PRODUCTION ; MICROALGAE ; STRATEGY
Indexed Type: SCI
Funder: National Key Research and Development Program(2016YFA0601400) ; National Natural Science Foundation of China(41306132) ; National High Technology Research and Development Program of China(2014AA021701)
Language: 英语
WOS ID: WOS:000402479100010
Citation statistics:
Content Type: 期刊论文
URI: http://ir.qibebt.ac.cn/handle/337004/9654
Appears in Collections:代谢物组学团队_期刊论文

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description.institution: 1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Shandong Prov Key Lab Energy Genet, Qingdao 266101, Shandong, Peoples R China
2.Chinese Acad Sci, Key Lab Biofuels, Qingdao Inst Bioenergy & Bioproc Technol, Qingdao 266101, Shandong, Peoples R China
3.Qingdao Engn Lab Single Cell Oil, Qingdao 266101, Shandong, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China

Recommended Citation:
Song, Xiaojin,Ma, Zengxin,Tan, Yanzhen,et al. Wastewater recycling technology for fermentation in polyunsaturated fatty acid production[J]. BIORESOURCE TECHNOLOGY,2017,235:79-86.
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