评估微藻菌株和微藻生物群落，以提高油脂产量和丰富脂肪酸组成，实现可持续的生物柴油生产。
Evaluation of microalgal strains and microalgal consortium for higher lipid productivity and rich fatty acid profile towards sustainable biodiesel production.
机构信息
National Repository for Microalgae and Cyanobacteria - Freshwater (NRMC-F) (Sponsored by the DBT, Govt. of India), Division of Microalgal Biodiversity and Bioenergy, Department of Microbiology, Bharathidasan University, Tiruchirappalli - 620 024, Tamil Nadu, India.
School of Renewable Energy, Maejo University, Chiang Mai 50290, Thailand; College of Medical and Health Science, Asia University, Taichung, Taiwan.
出版信息
Bioresour Technol. 2021 Nov;339:125524. doi: 10.1016/j.biortech.2021.125524. Epub 2021 Jul 11.
This present study has attempted to screen four microalgal strainsChlorella vulgaris, Coelastrellasp.Scenedesmus dimorphusandChlorococcumsp. and consortium for biodiesel application.Coelastrella sp. was found to show marginally higher optical density of 1.13 on 19th day whereas C. vulgaris and S. dimorphus consortium showed 1.59 OD. Regarding the dry cell weight, S. dimorphus and Chlorella vulgaris was found to yield higher DCW at about 0.544 and 0.508 g/L, respectively. In outdoor pond raceway pond, C. vulgaris and S. dimorphus yielded 0.76-0.80 g/L while consortium showed 0.87 g/L biomass. In the case of lipid content, S. dimorphus, C. vulgaris and consortium accumulated 36.4, 35.5 and 39.2% lipids, respectively in lab, whereas in outdoor raceway pond it was 26.4, 32.3 and 34.5%, respectively. The fatty profile of Chlorella and Scenedesmus sp. showed linolelaidic acid, and cis-8,11,14-eicosatrienoic acid as prevalent fatty acids whereas the consortium has 53.5% oleic acid than other fatty acids.
本研究试图筛选四种微藻菌株（普通小球藻、Coelastrella sp.、栅藻和 Chlorococcum sp.）和藻菌共生体用于生物柴油应用。Coelastrella sp. 在第 19 天显示出略高的光密度值 1.13，而 C. vulgaris 和 S. dimorphus 共生体显示出 1.59 OD。关于干细胞重量，栅藻和普通小球藻分别产生较高的 DCW，约为 0.544 和 0.508 g/L。在户外池塘跑道式池塘中，C. vulgaris 和 S. dimorphus 分别产生 0.76-0.80 g/L 的生物量，而共生体则产生 0.87 g/L 的生物量。在脂质含量方面，S. dimorphus、C. vulgaris 和共生体分别在实验室中积累了 36.4%、35.5%和 39.2%的脂质，而在户外跑道式池塘中则分别为 26.4%、32.3%和 34.5%。小球藻和栅藻的脂肪酸组成显示亚油酸和顺式-8,11,14-二十碳三烯酸为常见脂肪酸，而共生体的油酸含量为 53.5%，高于其他脂肪酸。
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