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题名: Lipid accumulation and growth characteristics of Chlorella zofingiensis under different nitrate and phosphate concentrations
作者: Feng, Pingzhong1, 2, 4; Deng, Zhongyang3; Fan, Lu3, 4; Hu, Zhengyu1
通讯作者: Hu, ZY (reprint author), Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China.
关键词: Biodiesel ; Chlorella zofingiensis ; Lipid accumulation ; Microalgae cultivation ; Outdoor culture ; Photoautrophic cultivation
刊名: JOURNAL OF BIOSCIENCE AND BIOENGINEERING
发表日期: 2012-10-01
DOI: 10.1016/j.jbiosc.2012.05.007
卷: 114, 期:4, 页:405-410
收录类别: SCI
文章类型: Article
部门归属: [Feng, Pingzhong; Hu, Zhengyu] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China; [Feng, Pingzhong] Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China; [Deng, Zhongyang; Fan, Lu] Hubei Univ Technol, Sch Biol Engn, Wuhan 430068, Hubei, Peoples R China; [Feng, Pingzhong; Fan, Lu] Algaen Corp, Winston Salem, NC 27101 USA
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Small Business Innovation Research (SBIR) program of the United States Department of Agriculture, National Institute of Food & Agriculture (NIFA) [2009-33610-19682]
类目[WOS]: Biotechnology & Applied Microbiology ; Food Science & Technology
研究领域[WOS]: Biotechnology & Applied Microbiology ; Food Science & Technology
摘要: To evaluate the potential of the green agla Chlorella zofingiensis as a feedstock for biodiesel production, the effects of nitrogen and phosphate on lipid accumulation and growth of C. zofingiensis were studied. The maximum specific growth rate (mu(max)) reached 2.15 day(-1) when the concentration of NaNO3 and K2HPO4 center dot 3H(2)O was 1.0 g L-1 and 0.01 g L-1 respectively. The lipid contents of C. zofingiensis grown in media deficient of nitrogen (65.1%) or phosphate (44.7%) were both higher than that obtained from cells grown in full medium (33.5%). The highest lipid productivity (87.1 mg L-1 day(-1)) was also obtained from cells grown in nitrogen deficient media, indicating nitrogen deficiency was more effective than phosphate deficiency for inducing lipid accumulation in C. zofingiensis. In addition, the feasibility of cultivating the alga in 60 L flat plate photobioreactors and 10 L bottles outdoors for biodiesel was also tested. It was found that C. zofingiensis could adapt to fluctuating temperatures and irradiance of outdoors and the highest mu(max) and lipid productivity could reach 0.362 day(-1) and 26.6 mg L-1 day(-1) outdoors, respectively. The lipid production potential of C. zofingiensis is projected to be 31.1 kg ha(-1) day(-1) in outdoor culture. These results suggested that C. zofingiensis is a promising organism for feedstock production of biofuel and can be used in scaled up culture outdoors. (c) 2012, The Society for Biotechnology, Japan. All rights reserved.
英文摘要: To evaluate the potential of the green agla Chlorella zofingiensis as a feedstock for biodiesel production, the effects of nitrogen and phosphate on lipid accumulation and growth of C. zofingiensis were studied. The maximum specific growth rate (mu(max)) reached 2.15 day(-1) when the concentration of NaNO3 and K2HPO4 center dot 3H(2)O was 1.0 g L-1 and 0.01 g L-1 respectively. The lipid contents of C. zofingiensis grown in media deficient of nitrogen (65.1%) or phosphate (44.7%) were both higher than that obtained from cells grown in full medium (33.5%). The highest lipid productivity (87.1 mg L-1 day(-1)) was also obtained from cells grown in nitrogen deficient media, indicating nitrogen deficiency was more effective than phosphate deficiency for inducing lipid accumulation in C. zofingiensis. In addition, the feasibility of cultivating the alga in 60 L flat plate photobioreactors and 10 L bottles outdoors for biodiesel was also tested. It was found that C. zofingiensis could adapt to fluctuating temperatures and irradiance of outdoors and the highest mu(max) and lipid productivity could reach 0.362 day(-1) and 26.6 mg L-1 day(-1) outdoors, respectively. The lipid production potential of C. zofingiensis is projected to be 31.1 kg ha(-1) day(-1) in outdoor culture. These results suggested that C. zofingiensis is a promising organism for feedstock production of biofuel and can be used in scaled up culture outdoors. (c) 2012, The Society for Biotechnology, Japan. All rights reserved.
关键词[WOS]: DIFFERENT NITROGEN ; CALORIFIC VALUES ; CELL-GROWTH ; GREEN-ALGAE ; MICROALGAE ; BIOMASS ; ASTAXANTHIN ; BIOREACTOR ; EXTRACTION ; BIODIESEL
语种: 英语
WOS记录号: WOS:000311595400008
ISSN号: 1389-1723
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/17274
Appears in Collections:藻类生物学及应用研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100049, Peoples R China
3.Hubei Univ Technol, Sch Biol Engn, Wuhan 430068, Hubei, Peoples R China
4.Algaen Corp, Winston Salem, NC 27101 USA

Recommended Citation:
Feng, Pingzhong; Deng, Zhongyang; Fan, Lu; Hu, Zhengyu.Lipid accumulation and growth characteristics of Chlorella zofingiensis under different nitrate and phosphate concentrations,JOURNAL OF BIOSCIENCE AND BIOENGINEERING,2012,114(4):405-410
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