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学科主题: 物理化学
题名: Microbial lipid production by Rhodosporidium toruloides under sulfate-limited conditions
作者: Wu, Siguo1, 3;  Zhao, Xin1, 3;  Shen, Hongwei1;  Wang, Qian1;  Zhao, Zongbao K.1, 2
通讯作者: 赵宗保
关键词: Microbial lipids ;  Sulfate limitation ;  Rhodosporidium toruloides ;  Biodiesel ;  Cocoa butter equivalent
刊名: BIORESOURCE TECHNOLOGY
发表日期: 2011
DOI: 10.1016/j.biortech.2010.09.033
卷: 102, 期:2, 页:1803-1807
收录类别: SCI
文章类型: Article
部门归属: 18
项目归属: 1816
产权排名: 1,1
WOS标题词: Science & Technology ;  Life Sciences & Biomedicine ;  Technology
类目[WOS]: Agricultural Engineering ;  Biotechnology & Applied Microbiology ;  Energy & Fuels
摘要: Microbial lipid production by Rhodosporidium toruloides under sulfate-limited conditions
研究领域[WOS]: Agriculture ;  Biotechnology & Applied Microbiology ;  Energy & Fuels
英文摘要: Novel biochemical approaches remain to be developed to improve microbial lipid technology. This study demonstrated that sulfate limitation was effective to promote accumulating substantial amounts of intracellular lipid by the oleaginous yeast Rhodosporidium toruloides Y4. When it was cultivated using a medium with an initial carbon-to-sulfur (C/S) molar ratio of 46,750, cellular lipid content reached up to 58.3%. The time courses of cell growth, lipid accumulation and nutrient depletion were analyzed and discussed in terms of lipid biosynthesis. Moreover, lipid accumulation under sulfate-limited conditions was effective regardless of the presence of a high concentration of nitrogen sources. Thus, lipid contents almost held constant at near 57% in the media with an initial C/S molar ratio of 11,380 although the carbon-to-nitrogen molar ratio ranged from 28.3 to 5.7. Taken together, our results established the sulfate-limitation approach to control lipid biosynthesis, which should be valuable to explore nitrogen-rich raw materials as the feedstock for lipid production. (C) 2010 Elsevier Ltd. All rights reserved.
关键词[WOS]: YEAST APIOTRICHUM-CURVATUM ;  STAGE CONTINUOUS-CULTURE ;  FATTY-ACID PRODUCTION ;  FED-BATCH CULTURE ;  RHODOTORULA-GLUTINIS ;  YARROWIA-LIPOLYTICA ;  CRYPTOCOCCUS-CURVATUS ;  BIODIESEL PRODUCTION ;  DENSITY CULTIVATION ;  HYDROGEN-PRODUCTION
语种: 英语
WOS记录号: WOS:000286782700191
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/115579
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China

Recommended Citation:
Wu, Siguo,Zhao, Xin,Shen, Hongwei,et al. Microbial lipid production by Rhodosporidium toruloides under sulfate-limited conditions[J]. BIORESOURCE TECHNOLOGY,2011,102(2):1803-1807.
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