Research Article
Life Cycle Analysis on Fossil Energy Ratio of Algal Biodiesel: Effects of Nitrogen Deficiency and Oil Extraction Technology
Table 1
Productivity and cell composition of algae grown under N-sufficient and N-limited conditions.
| Strains | Normal N supply | Limited N supply (50% of normal N supply) | Protein/% | Carbonhydrate/% | Lipid/% | Productivity/g/m2·d | Protein/% | Carbonhydrate/% | Lipid/% | Productivity/g/m2·d |
| Phaeodactylum tricornutumb | 32.2 | 18.5 | 28.46 | 25 | 24.76 | 16.7 | 31.8 | 15.45 | Chlorella vulgarisc | 31 | 51 | 18 | 22 | 6 | 54 | 40 | 19.85 |
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Source: [9, 21]. cSource: [11, 22].
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