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题名: In Situ Enzymatic Conversion of Nannochloropsis oceanica IMET1 Biomass into Fatty Acid Methyl Esters
作者: Wang, Yao1, 2, 3, 4; Lee, Yi-Ying2, 3; Santaus, Tonya M.5; Newcomb, Charles E.2, 3; Liu, Jin2, 3; Geddes, Chris D.5; Zhang, Chengwu1; Hu, Qiang4, 6; Li, Yantao2, 3
关键词: Biofuel ; Biomass ; In situ enzymatic conversion ; Fatty acidmethyl ester ; Lipase ; Nannochloropsis oceanica
刊名: BIOENERGY RESEARCH
发表日期: 2017-06-01
DOI: 10.1007/s12155-016-9807-2
卷: 10, 期:2, 页:438-448
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine
类目[WOS]: Energy & Fuels ; Environmental Sciences
研究领域[WOS]: Energy & Fuels ; Environmental Sciences & Ecology
英文摘要: Conventionally, production of methyl ester fuels from microalgae occurs through an energy-intensive two-step chemical extraction and transesterification process. To improve the energy efficiency, we performed in situ enzymatic conversion of whole algae biomass from an oleaginous heterokont microalga Nannochloropsis oceanica IMET1 with the immobilized lipase from Candida antarctica. The fatty acid methyl ester yield reached 107.7% for dry Nannochloropsis biomass at biomass to t-butanol to methanol weight ratio of 1:2:0.5 and a reaction time of 12 h at 25 A degrees C, representing the first report of efficient whole algae biomass conversion into fatty acid methyl esters at room temperature. Different forms of algal biomass including wet Nannochloropsis biomass were tested. The maximum yield of wet biomass was 81.5%. Enzyme activity remained higher than 95% after 55 days of treatment (equal to 110 cycles of reaction) under the conditions optimized for dry algae biomass conversion. The low reaction temperature, high enzyme stability, and high yield from this study indicate in situ enzymatic conversion of dry algae biomass may potentially be used as an energy-efficient method for algal methyl ester fuel production while allowing co-product recovery.
关键词[WOS]: BIODIESEL PRODUCTION ; ALGAL BIOMASS ; DIRECT TRANSESTERIFICATION ; SOYBEAN OIL ; LIPASE ; METHANOLYSIS ; TRANSFORMATION ; LIQUEFACTION ; CELLS ; ASSAY
语种: 英语
项目资助者: U.S. Office of Naval Research(N00014-15-1-2219) ; National Science Foundation(CBET-1511939) ; Climate Change and Emissions Management Corporation (CCEMC) ; University of Maryland Baltimore County Catalyst fund ; China Scholarship Council (CSC) ; Jinan University
WOS记录号: WOS:000400861200012
ISSN号: 1939-1234
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/29190
Appears in Collections:藻类生物技术和生物能源研发中心_期刊论文

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作者单位: 1.Jinan Univ, Inst Hydrobiol, Guangzhou 510632, Guangdong, Peoples R China
2.Univ Maryland, Inst Marine & Environm Technol, Ctr Environm Sci, Baltimore, MD 21202 USA
3.Univ Maryland Baltimore Cty, Baltimore, MD 21202 USA
4.SDIC Grp, China Elect Engn Design Inst, SDIC Microalgae Biotechnol Ctr, Beijing 100142, Peoples R China
5.Univ Maryland Baltimore Cty, Inst Fluorescence, Dept Chem & Biochem, Columbus Ctr, 701 East Pratt St, Baltimore, MD 21202 USA
6.Chinese Acad Sci, Inst Hydrobiol, Ctr Microalgal Biotechnol & Biofuels, Wuhan 430072, Peoples R China
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