Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Ciência e Tecnologia de Alimentos
2017
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| _version_ | 1876434921313009664 |
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| author | Tania MENEGOL |
| author_facet | Tania MENEGOL |
| contents | Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis Tania MENEGOL Andressa Bacalau DIPRAT Eliseu RODRIGUES Rosane RECH Agrociencias omega lipids Nitrogen microalga temperature 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. 2017 artículo científico 0101-2061 https://www.redalyc.org/articulo.oa?id=395953593006 en http://www.redalyc.org/revista.oa?id=3959 Ciência e Tecnologia de Alimentos application/pdf Sociedade Brasileira de Ciência e Tecnologia de Alimentos Ciência e Tecnologia de Alimentos (Brasil) Vol.37 |
| format | Artículo científico |
| id | redalyc_395953593006 |
| institution | Redalyc |
| language | en |
| publishDate | 2017 |
| publisher | Sociedade Brasileira de Ciência e Tecnologia de Alimentos |
| spellingShingle | Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis Tania MENEGOL Agrociencias omega lipids Nitrogen microalga temperature Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis Tania MENEGOL Andressa Bacalau DIPRAT Eliseu RODRIGUES Rosane RECH Agrociencias omega lipids Nitrogen microalga temperature 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. 2017 artículo científico 0101-2061 https://www.redalyc.org/articulo.oa?id=395953593006 en http://www.redalyc.org/revista.oa?id=3959 Ciência e Tecnologia de Alimentos application/pdf Sociedade Brasileira de Ciência e Tecnologia de Alimentos Ciência e Tecnologia de Alimentos (Brasil) Vol.37 |
| title | Effect of temperature and nitrogen concentration on biomass composition of Heterochlorella luteoviridis |
| topic | Agrociencias omega lipids Nitrogen microalga temperature |
| url | https://www.redalyc.org/articulo.oa?id=395953593006 |