1. Isolation of a novel strain of Monoraphidium sp. and characterization of its potential for α-linolenic acid and biodiesel production
- Author
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Yunye Zhang, Hongzhi Ling, Wenxiang Ping, Xiufeng Yan, Yimeng Lin, and Jingping Ge
- Subjects
0301 basic medicine ,China ,Environmental Engineering ,Bioengineering ,010501 environmental sciences ,01 natural sciences ,Monoraphidium ,03 medical and health sciences ,Essential fatty acid ,Dry weight ,Microalgae ,Biomass ,Food science ,Waste Management and Disposal ,Phylogeny ,0105 earth and related environmental sciences ,chemistry.chemical_classification ,Selenastraceae ,biology ,Renewable Energy, Sustainability and the Environment ,Chemistry ,Fatty Acids ,alpha-Linolenic Acid ,Fatty acid ,Sphaeropleales ,General Medicine ,biology.organism_classification ,Lipids ,030104 developmental biology ,Biofuels ,Biodiesel production ,Polyunsaturated fatty acid - Abstract
α-Linolenic acid (ALA) is an essential fatty acid which cannot be synthesized de novo in mammals and must be ingested regularly in the diet. In this study, a microalgal strain named HDMA-11 was isolated from Lake Ming, China, and was found to accumulate a high ALA content (39.2% of total lipids). Phylogenetic neighbor-joining analysis indicated that HDMA-11 belongs to the genus Monoraphidium (Selenastraceae, Sphaeropleales) and its 18S ribosomal DNA sequence seemed to be a new molecular record of a Monoraphidium species. The fatty acid profiles, biomass productivity and lipid content of HDMA-11 were also investigated in autotrophic conditions. The high levels of polyunsaturated fatty acids in HDMA-11, especially ALA, make it suitable as a source of nutritional supplementation for human health. Furthermore, HDMA-11 exhibited good properties for biodiesel production, characterized by high lipid content (28.5% of dry weight), moderate biomass productivity (31.5 mg L−1 day−1) and a promising lipid profile. more...
- Published
- 2018
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