Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis
| dc.creator | Tania MENEGOL | |
| dc.creator | Andressa Bacalau DIPRAT | |
| dc.creator | Eliseu RODRIGUES | |
| dc.creator | Rosane RECH | |
| dc.date | 2017 | |
| dc.date.accessioned | 2026-07-07T04:18:28Z | |
| dc.description | The interest in microalga as a food supplement has grown due their high contents of carotenoids, polyunsaturated fatty acids and proteins. This study evaluated the effect of different temperatures (22, 27 or 32 °C) and sodium nitrate concentrations (12, 24, 36, 48 or 60 mg L -1 of N-N D 3 ) in culture medium on Heterochlorella luteoviridis biomass production and composition. The highest biomass concentration (3.35 g L -1 ) was observed at the highest N-N D 3 concentration. The N-N D 3 concentration positively affected protein, carbohydrate and carotenoids contents of biomass. Dn the other hand, cells cultured at the lowest N-N D 3 concentration showed a slight increment in lipid content. The major carotenoid was lutein (30.7 ± 1.4% of total carotenoids), and the polyunsaturated fatty acids were 37 ± 2% of total fatty acids. Low temperature improved the biosynthesis of ω3 type fatty acids by lowering the ω6:ω3 ratio. D verall, our results indicate H. luteoviridis can yield high biomass concentration under autotrophic growth, resulting in a biomass rich in carotenoids, mainly lutein, and ω3 polyunsaturated fatty acids. | |
| dc.format | application/pdf | |
| dc.identifier | 0101-2061 | |
| dc.identifier | https://www.redalyc.org/articulo.oa?id=395953593006 | |
| dc.identifier.uri | http://hdl.handle.net/123456789/457274 | |
| dc.language | en | |
| dc.publisher | Sociedade Brasileira de Ciência e Tecnologia de Alimentos | |
| dc.relation | http://www.redalyc.org/revista.oa?id=3959 | |
| dc.rights | Ciência e Tecnologia de Alimentos | |
| dc.source | Ciência e Tecnologia de Alimentos (Brasil) Vol.37 | |
| dc.subject | Agrociencias | |
| dc.title | Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis | |
| dc.type | artículo científico |