Response of growth and fatty acid compositions of Nannochloropsis sp. to environmental factors under elevated CO2 concentration
Nannochloropsis sp. was grown with different levels of nitrate, phosphate, salinity and temperature with CO(2) at 2,800 microl l(-1). Increased levels of NaNO(3) and KH(2)PO(4) raised protein and polyunsaturated fatty acids (PUFAs) contents but decreased carbohydrate, total lipid and total fatty aci...
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| Veröffentlicht in: | Biotechnology letters 2006-07, Vol.28 (13), p.987-992 |
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| container_title | Biotechnology letters |
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| creator | Hu, Hanhua Gao, Kunshan |
| description | Nannochloropsis sp. was grown with different levels of nitrate, phosphate, salinity and temperature with CO(2) at 2,800 microl l(-1). Increased levels of NaNO(3) and KH(2)PO(4) raised protein and polyunsaturated fatty acids (PUFAs) contents but decreased carbohydrate, total lipid and total fatty acids (TFA) contents. Nannochloropsis sp. grew well at salinities from 22 to 49 g l(-1), and lowering salinity enhanced TFA and PUFAs contents. TFA contents increased with the increasing temperature but PUFAs contents decreased. The highest eicosapentaenoic acid (EPA, 20:5 omega3) content based on the dry mass was above 3% under low N (150 microM NaNO(3)) or high N (3000 microM NaNO(3)) condition. Excessive nitrate, low salinity and temperature are thus favorable factors for improving EPA yields in Nannochloropsis sp. |
| doi_str_mv | 10.1007/s10529-006-9026-6 |
| format | Article |
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Increased levels of NaNO(3) and KH(2)PO(4) raised protein and polyunsaturated fatty acids (PUFAs) contents but decreased carbohydrate, total lipid and total fatty acids (TFA) contents. Nannochloropsis sp. grew well at salinities from 22 to 49 g l(-1), and lowering salinity enhanced TFA and PUFAs contents. TFA contents increased with the increasing temperature but PUFAs contents decreased. The highest eicosapentaenoic acid (EPA, 20:5 omega3) content based on the dry mass was above 3% under low N (150 microM NaNO(3)) or high N (3000 microM NaNO(3)) condition. Excessive nitrate, low salinity and temperature are thus favorable factors for improving EPA yields in Nannochloropsis sp.</description><identifier>ISSN: 0141-5492</identifier><identifier>EISSN: 1573-6776</identifier><identifier>DOI: 10.1007/s10529-006-9026-6</identifier><identifier>PMID: 16791719</identifier><identifier>CODEN: BILED3</identifier><language>eng</language><publisher>Dordrecht: Springer</publisher><subject>Biological and medical sciences ; Bioreactors - microbiology ; Biotechnology ; Carbon dioxide ; Carbon Dioxide - administration & dosage ; Cell Culture Techniques - methods ; Cell Proliferation - drug effects ; Dose-Response Relationship, Drug ; Eicosapentaenoic Acid - metabolism ; Environmental factors ; Eukaryota - physiology ; Fatty acids ; Fundamental and applied biological sciences. 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Increased levels of NaNO(3) and KH(2)PO(4) raised protein and polyunsaturated fatty acids (PUFAs) contents but decreased carbohydrate, total lipid and total fatty acids (TFA) contents. Nannochloropsis sp. grew well at salinities from 22 to 49 g l(-1), and lowering salinity enhanced TFA and PUFAs contents. TFA contents increased with the increasing temperature but PUFAs contents decreased. The highest eicosapentaenoic acid (EPA, 20:5 omega3) content based on the dry mass was above 3% under low N (150 microM NaNO(3)) or high N (3000 microM NaNO(3)) condition. Excessive nitrate, low salinity and temperature are thus favorable factors for improving EPA yields in Nannochloropsis sp.</description><subject>Biological and medical sciences</subject><subject>Bioreactors - microbiology</subject><subject>Biotechnology</subject><subject>Carbon dioxide</subject><subject>Carbon Dioxide - administration & dosage</subject><subject>Cell Culture Techniques - methods</subject><subject>Cell Proliferation - drug effects</subject><subject>Dose-Response Relationship, Drug</subject><subject>Eicosapentaenoic Acid - metabolism</subject><subject>Environmental factors</subject><subject>Eukaryota - physiology</subject><subject>Fatty acids</subject><subject>Fundamental and applied biological sciences. 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| ispartof | Biotechnology letters, 2006-07, Vol.28 (13), p.987-992 |
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| language | eng |
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| source | MEDLINE; SpringerLink Journals - AutoHoldings |
| subjects | Biological and medical sciences Bioreactors - microbiology Biotechnology Carbon dioxide Carbon Dioxide - administration & dosage Cell Culture Techniques - methods Cell Proliferation - drug effects Dose-Response Relationship, Drug Eicosapentaenoic Acid - metabolism Environmental factors Eukaryota - physiology Fatty acids Fundamental and applied biological sciences. Psychology Nitrates - metabolism Phosphates - metabolism Polyunsaturated fatty acids Salinity Sodium Chloride - metabolism Temperature |
| title | Response of growth and fatty acid compositions of Nannochloropsis sp. to environmental factors under elevated CO2 concentration |
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