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Biodiesel quality and biochemical changes of microalgae Chlorella pyrenoidosa and Scenedesmus obliquus in response to nitrate levels.
Bioresour Technol. 2014 Oct; 170:421-427.BT

Abstract

Biodiesel quality associated with biochemical components of Chlorella pyrenoidosa and Scenedesmus obliquus under different nitrate levels were investigated. The highest lipid contents of 54.5% for C. pyrenoidosa and 47.7% for S. obliquus were obtained in nitrate absence. Carbohydrate peaked at 0.3gL(-1) with values of 40.7% for C. pyrenoidosa and 42.5% for S. obliquus. Protein content seemed species dependent, which decreased substantially to 11.2% in C. pyrenoidosa and 8.8% in S. obliquus under nitrate absence in present research. Better biodiesel quality (e.g. cetane number >58, iodine value <69) could be obtained from C. pyrenoidosa in nitrate absence and S. obliquus in 0.3gL(-1), where the highest saturated fatty acids (39.5 for C. pyrenoidosa, 31.2 for S. obliquus) and the lowest unsaturated fatty acids (60.5 for C. pyrenoidosa, 68.8 for S. obliquus) were obtained. These results suggest that microalgae grown in the presence of nitrogen may limit biodiesel quality.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Wu H
State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; Biomass Energy Research Center, Shanghai Jiao Tong University, Shanghai 200240, China.
Miao X
State Key Laboratory of Microbial Metabolism and School of Life Sciences & Biotechnology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, China; State Key Laboratory of Motor Vehicle Biofuel Technology, Nanyang 473000, China; Biomass Energy Research Center, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address: miaoxiaoling@sjtu.edu.cn.

MeSH

BiofuelsBioreactorsCarbohydratesChlorellaColorimetryLipidsMass SpectrometryMicroalgaeNitratesProteinsScenedesmusSpecies Specificity

Pub Type(s)

Comparative Study
Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

25164333

Citation

Wu, Hongqin, and Xiaoling Miao. "Biodiesel Quality and Biochemical Changes of Microalgae Chlorella Pyrenoidosa and Scenedesmus Obliquus in Response to Nitrate Levels." Bioresource Technology, vol. 170, 2014, pp. 421-427.
Wu H, Miao X. Biodiesel quality and biochemical changes of microalgae Chlorella pyrenoidosa and Scenedesmus obliquus in response to nitrate levels. Bioresour Technol. 2014;170:421-427.
Wu, H., & Miao, X. (2014). Biodiesel quality and biochemical changes of microalgae Chlorella pyrenoidosa and Scenedesmus obliquus in response to nitrate levels. Bioresource Technology, 170, 421-427. https://doi.org/10.1016/j.biortech.2014.08.017
Wu H, Miao X. Biodiesel Quality and Biochemical Changes of Microalgae Chlorella Pyrenoidosa and Scenedesmus Obliquus in Response to Nitrate Levels. Bioresour Technol. 2014;170:421-427. PubMed PMID: 25164333.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Biodiesel quality and biochemical changes of microalgae Chlorella pyrenoidosa and Scenedesmus obliquus in response to nitrate levels. AU - Wu,Hongqin, AU - Miao,Xiaoling, Y1 - 2014/08/10/ PY - 2014/06/26/received PY - 2014/07/30/revised PY - 2014/08/01/accepted PY - 2014/8/29/entrez PY - 2014/8/29/pubmed PY - 2015/6/3/medline KW - Biodiesel quality KW - Chlorella pyrenoidosa KW - Fatty acid compositions KW - Nitrate levels KW - Scenedesmus obliquus SP - 421 EP - 427 JF - Bioresource technology JO - Bioresour Technol VL - 170 N2 - Biodiesel quality associated with biochemical components of Chlorella pyrenoidosa and Scenedesmus obliquus under different nitrate levels were investigated. The highest lipid contents of 54.5% for C. pyrenoidosa and 47.7% for S. obliquus were obtained in nitrate absence. Carbohydrate peaked at 0.3gL(-1) with values of 40.7% for C. pyrenoidosa and 42.5% for S. obliquus. Protein content seemed species dependent, which decreased substantially to 11.2% in C. pyrenoidosa and 8.8% in S. obliquus under nitrate absence in present research. Better biodiesel quality (e.g. cetane number >58, iodine value <69) could be obtained from C. pyrenoidosa in nitrate absence and S. obliquus in 0.3gL(-1), where the highest saturated fatty acids (39.5 for C. pyrenoidosa, 31.2 for S. obliquus) and the lowest unsaturated fatty acids (60.5 for C. pyrenoidosa, 68.8 for S. obliquus) were obtained. These results suggest that microalgae grown in the presence of nitrogen may limit biodiesel quality. SN - 1873-2976 UR - https://www.unboundmedicine.com/medline/citation/25164333/Biodiesel_quality_and_biochemical_changes_of_microalgae_Chlorella_pyrenoidosa_and_Scenedesmus_obliquus_in_response_to_nitrate_levels_ DB - PRIME DP - Unbound Medicine ER -