Introduction of macroalgae as a source of biodiesel in Iran: analysis of total lipid content, fatty acid and biodiesel indices
The aim of this work was to describe and compare the main fatty acids and biodiesel indices of some green and brown macroalgae (seaweeds) collected from the Persian Gulf, as an alternative raw material for renewable biodiesel production. The macroalgae showed low lipid content (< 10% DW) but mari...
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| Veröffentlicht in: | Journal of the Marine Biological Association of the United Kingdom 2021-05, Vol.101 (3), p.527-534 |
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| creator | Jeliani, Zahra Zarei Fazelian, Nasrin Yousefzadi, Morteza |
| description | The aim of this work was to describe and compare the main fatty acids and biodiesel indices of some green and brown macroalgae (seaweeds) collected from the Persian Gulf, as an alternative raw material for renewable biodiesel production. The macroalgae showed low lipid content (< 10% DW) but marine macroalgae with total lipid content > 5% DW are a good source for biodiesel production. The total lipid content and saturated fatty acids (SFAs) of green algae were higher than that of brown algae, while higher accumulation of unsaturated fatty acids (USFAs) was observed in brown seaweeds. Further, the main fatty acid in all studied seaweeds was palmitic acid (C16:0), which was followed by oleic acid (C18:1). The results of this work showed that three of the green algae, especially C. sertularioides, could be a potential source of fatty acids for biodiesel production owing to their high total lipid content, high cold flow indices (long chain saturated factor, cold filter plugging point and cloud point) and a fatty acid profile rich in SFAs with a high amount of C18:1, which is suitable for oil-based bio products. In contrast, the brown seaweeds Sargassum boveanum and Sirophysalis trinodis lipid content had a high proportion of polyunsaturated fatty acids (PUFAs), which makes them suitable for replacing fish oil. |
| doi_str_mv | 10.1017/S0025315421000382 |
| format | Article |
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The macroalgae showed low lipid content (< 10% DW) but marine macroalgae with total lipid content > 5% DW are a good source for biodiesel production. The total lipid content and saturated fatty acids (SFAs) of green algae were higher than that of brown algae, while higher accumulation of unsaturated fatty acids (USFAs) was observed in brown seaweeds. Further, the main fatty acid in all studied seaweeds was palmitic acid (C16:0), which was followed by oleic acid (C18:1). The results of this work showed that three of the green algae, especially C. sertularioides, could be a potential source of fatty acids for biodiesel production owing to their high total lipid content, high cold flow indices (long chain saturated factor, cold filter plugging point and cloud point) and a fatty acid profile rich in SFAs with a high amount of C18:1, which is suitable for oil-based bio products. In contrast, the brown seaweeds Sargassum boveanum and Sirophysalis trinodis lipid content had a high proportion of polyunsaturated fatty acids (PUFAs), which makes them suitable for replacing fish oil.</description><identifier>ISSN: 0025-3154</identifier><identifier>EISSN: 1469-7769</identifier><identifier>DOI: 10.1017/S0025315421000382</identifier><language>eng</language><publisher>Cambridge, UK: Cambridge University Press</publisher><subject>Agricultural commodities ; Algae ; Alternative energy sources ; Aquatic plants ; Biodiesel fuels ; Biofuels ; Biomass ; Carbohydrates ; Chlorophyta ; Climate change ; Cold flow ; Diesel ; Fatty acids ; Fish ; Fish oils ; Flow index ; Fossil fuels ; Freshwater resources ; Lipids ; Oleic acid ; Palmitic acid ; Polyunsaturated fatty acids ; Raw materials ; Seaweeds ; Seeds ; Sensors</subject><ispartof>Journal of the Marine Biological Association of the United Kingdom, 2021-05, Vol.101 (3), p.527-534</ispartof><rights>Copyright © The Author(s), 2021. 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Mar. Biol. Ass</addtitle><description>The aim of this work was to describe and compare the main fatty acids and biodiesel indices of some green and brown macroalgae (seaweeds) collected from the Persian Gulf, as an alternative raw material for renewable biodiesel production. The macroalgae showed low lipid content (< 10% DW) but marine macroalgae with total lipid content > 5% DW are a good source for biodiesel production. The total lipid content and saturated fatty acids (SFAs) of green algae were higher than that of brown algae, while higher accumulation of unsaturated fatty acids (USFAs) was observed in brown seaweeds. Further, the main fatty acid in all studied seaweeds was palmitic acid (C16:0), which was followed by oleic acid (C18:1). The results of this work showed that three of the green algae, especially C. sertularioides, could be a potential source of fatty acids for biodiesel production owing to their high total lipid content, high cold flow indices (long chain saturated factor, cold filter plugging point and cloud point) and a fatty acid profile rich in SFAs with a high amount of C18:1, which is suitable for oil-based bio products. 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| subjects | Agricultural commodities Algae Alternative energy sources Aquatic plants Biodiesel fuels Biofuels Biomass Carbohydrates Chlorophyta Climate change Cold flow Diesel Fatty acids Fish Fish oils Flow index Fossil fuels Freshwater resources Lipids Oleic acid Palmitic acid Polyunsaturated fatty acids Raw materials Seaweeds Seeds Sensors |
| title | Introduction of macroalgae as a source of biodiesel in Iran: analysis of total lipid content, fatty acid and biodiesel indices |
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