Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus
Scenedesmus dimorphus is a four-celled colony algae. It was speculated that the species have 16-40% of lipid yield. The environmental stressor especially under nitrogen limitation could enhance lipid accumulation. In the current study, the species was cultivated in different nitrogen concentration a...
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| Format: | Final Year Project Report / IMRAD |
| Language: | English |
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Universiti Malaysia Sarawak, (UNIMAS)
2011
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| Online Access: | http://ir.unimas.my/id/eprint/6411/ http://ir.unimas.my/id/eprint/6411/8/EFFECT%20OF%20NUTRIENT%20DEPRIVATION%20ON%20LIPID%20YIELD%20OF%20SCENEDESMUS%20DIMORHUS%28OCR%29.pdf |
| _version_ | 1848835911836499968 |
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| author | Kathy, Dang |
| author_facet | Kathy, Dang |
| author_sort | Kathy, Dang |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Scenedesmus dimorphus is a four-celled colony algae. It was speculated that the species have 16-40% of lipid yield. The environmental stressor especially under nitrogen limitation could enhance lipid accumulation. In the current study, the species was cultivated in different nitrogen concentration at pH 5, 7 and 9. The growth was compared. The outdoor cultivation was carried out at nutrient sufficient and nutrient deficiency conditions. The algal biomass was harvested at 16th days of cultivation for nutrient deficiency experiment and 18th days from that of nutrient sufficient. The lipid was extracted from algal biomass using Soxhlet method with n-hexane. Results showed that Scenedesmus dimorphus had optimum growth at higher nitrogen concentration at neutral pH while optimum growth occurred at low nitrogen concentration under pH 5 and 9. The lipid yield produced in N-sufficient cultivation was about 2.09% while the lipid yield produced in from N-starved cultivation was about 2.33%. The lipid content was not affected by the nitrogen limitation in the culture. |
| first_indexed | 2025-11-15T06:15:24Z |
| format | Final Year Project Report / IMRAD |
| id | unimas-6411 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:15:24Z |
| publishDate | 2011 |
| publisher | Universiti Malaysia Sarawak, (UNIMAS) |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-64112023-08-11T09:16:11Z http://ir.unimas.my/id/eprint/6411/ Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus Kathy, Dang GE Environmental Sciences QD Chemistry Scenedesmus dimorphus is a four-celled colony algae. It was speculated that the species have 16-40% of lipid yield. The environmental stressor especially under nitrogen limitation could enhance lipid accumulation. In the current study, the species was cultivated in different nitrogen concentration at pH 5, 7 and 9. The growth was compared. The outdoor cultivation was carried out at nutrient sufficient and nutrient deficiency conditions. The algal biomass was harvested at 16th days of cultivation for nutrient deficiency experiment and 18th days from that of nutrient sufficient. The lipid was extracted from algal biomass using Soxhlet method with n-hexane. Results showed that Scenedesmus dimorphus had optimum growth at higher nitrogen concentration at neutral pH while optimum growth occurred at low nitrogen concentration under pH 5 and 9. The lipid yield produced in N-sufficient cultivation was about 2.09% while the lipid yield produced in from N-starved cultivation was about 2.33%. The lipid content was not affected by the nitrogen limitation in the culture. Universiti Malaysia Sarawak, (UNIMAS) 2011 Final Year Project Report / IMRAD NonPeerReviewed text en http://ir.unimas.my/id/eprint/6411/8/EFFECT%20OF%20NUTRIENT%20DEPRIVATION%20ON%20LIPID%20YIELD%20OF%20SCENEDESMUS%20DIMORHUS%28OCR%29.pdf Kathy, Dang (2011) Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus. [Final Year Project Report / IMRAD] (Unpublished) |
| spellingShingle | GE Environmental Sciences QD Chemistry Kathy, Dang Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus |
| title | Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus |
| title_full | Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus |
| title_fullStr | Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus |
| title_full_unstemmed | Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus |
| title_short | Effect of nutrient deprivation on lipid yield of scenedesmus dimorhus |
| title_sort | effect of nutrient deprivation on lipid yield of scenedesmus dimorhus |
| topic | GE Environmental Sciences QD Chemistry |
| url | http://ir.unimas.my/id/eprint/6411/ http://ir.unimas.my/id/eprint/6411/8/EFFECT%20OF%20NUTRIENT%20DEPRIVATION%20ON%20LIPID%20YIELD%20OF%20SCENEDESMUS%20DIMORHUS%28OCR%29.pdf |