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题名: Highly-efficient enzymatic conversion of crude algal oils into biodiesel
作者: Wang, Yao1, 2, 3; Liu, Jin2, 3; Gerken, Henri4; Zhang, Chengwu1; Hu, Qiang5; Li, Yantao2, 3
关键词: Crude algal oils ; Enzymatic conversion ; Fatty acid methyl esters ; Lipase ; Nannochloropsis oceanica IMET1
刊名: BIORESOURCE TECHNOLOGY
发表日期: 2014-11-01
DOI: 10.1016/j.biortech.2014.09.003
卷: 172, 页:143-149
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine ; Technology
类目[WOS]: Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
研究领域[WOS]: Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
英文摘要: Energy-intensive chemical conversion of crude algal oils into biodiesel is a major barrier for cost-effective algal biofuel production. To overcome this problem, we developed an enzyme-based platform for conversion of crude algal oils into fatty acid methyl esters. Crude algal oils were extracted from the oleaginous microalga Nannochloropsis oceanica IMET1 and converted by an immobilized lipase from Candida antarctica. The effects of different acyl acceptors, t-butanol as a co-solvent, oil to t-butanol ratio, oil to methanol ratio, temperature and reaction time on biodiesel conversion efficiency were studied. The conversion efficiency reached 99.1% when the conversion conditions were optimized, i.e., an oil to t-butanol weight ratio of 1:1, an oil to methanol molar ratio of 1:12, and a reaction time of 4 h at 25 degrees C. The enzymatic conversion process developed in this study may hold a promise for low energy consumption, low wastewater-discharge biochemical conversion of algal feedstocks into biofuels. Published by Elsevier Ltd.
关键词[WOS]: LIPASE-CATALYZED TRANSESTERIFICATION ; TERT-BUTANOL SYSTEM ; RENEWABLE OILS ; SOYBEAN OIL ; MICROALGAE ; SOLVENT ; TRANSFORMATION ; BIOFUEL
语种: 英语
WOS记录号: WOS:000344113800019
ISSN号: 0960-8524
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/23811
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, Ctr Environm Sci, Inst Marine & Environm Technol, Baltimore, MD 21202 USA
3.Univ Maryland Baltimore Cty, Baltimore, MD 21202 USA
4.Arizona State Univ, Arizona Ctr Algal Technol & Innovat, Mesa, AZ 85212 USA
5.Chinese Acad Sci, Inst Hydrobiol, Ctr Microalgal Biotechnol & Biofuels, Wuhan 430072, Peoples R China
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