1. Combination of trace elements and salt stress in different cultivation modes improves the lipid productivity of Scenedesmus spp
- Author
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Marcelo Gomes Marçal Vieira Vaz, Lidiane Covell, Dilson Novais Rocha, Mauricio de Oliveira Leite, Jimmy Soares, Leonardo Brantes Bacellar Mendes, and Marcio Arêdes Martins
- Subjects
0106 biological sciences ,Environmental Engineering ,Bioengineering ,010501 environmental sciences ,Raw material ,Salt Stress ,01 natural sciences ,Bioenergy ,010608 biotechnology ,Aquatic plant ,Biomass ,Food science ,Waste Management and Disposal ,Scenedesmus ,0105 earth and related environmental sciences ,Biodiesel ,biology ,Renewable Energy, Sustainability and the Environment ,Chemistry ,General Medicine ,biology.organism_classification ,Lipids ,Trace Elements ,Salinity ,Productivity (ecology) ,Biofuel ,Biofuels - Abstract
The genus Scenedesmus harbors around 120 species, and some strains have been successfully used for mass culture and biotechnological applications. Considering the potential of this genus as a promising feedstock for production of biofuels, mainly biodiesel, it was evaluated the combined effects of trace elements, salinity stress and different cultivation modes (single batch, semi-continuous, and two-stage batch) on lipid productivity of the freshwater strains S. obliquus BR003 and S. bajacalifornicus BR024. Cultivation of BR003 and BR024 applying culture medium supplemented with trace elements and salt stress sustained a higher production of lipids. However, S. obliquus BR003 and S. bajacalifornicus BR024 showed different concentrations of neutral and total lipids when cultivated in batch-based and semi-continuous modes, and the batch-based modes were preferred for the production of lipids and carbohydrates. Consequently, different cultivation strategies coupled with slight salt stress improve the lipid productivity in Scenedesmus strains.
- Published
- 2019
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