Files and links (1)
CC BY V4.0, Open Access
Journal article
Lipid Enhancement in Oleaginous Nannochloropsis sp. under Nitrate Limitation for Future Bioenergy Production
International journal of energy research, Vol.2023, 5412660
2023
Abstract
Microalgae possess high oil content, exhibit rapid growth rates and biomass productivity, and leave a minimal environmental footprint, making them highly attractive for biofuel applications. Consequently, this present study is aimed at evaluating the impact of nitrogen starvation on the marine microalgae Nannochloropsis sp. to enhance lipid accumulation. The microalga culture was grown under an irradiance of 120 μmol photon m-2 s-1, temperature 25 ± 1 °C, continuous air-CO2, and with different concentrations of sodium nitrites over a 14-day cultivation period. From the results, it was found that the growth of the strain decreased under limited nitrogen conditions. After harvesting, the cells in the supernatant were regenerated by cultivating in double concentration of media. The results showed that on the 12th day, the highest lipid content was achieved, reaching 68.0 ± 2.3 wt.% of the dry weight under nitrogen limitation. The composition of the obtained lipid consisted of 18.0 wt.% saturated fatty acids, 72.38 wt.% monounsaturated fatty acids, and 8.95 wt.% polyunsaturated fatty acids. The lipid composition was dominated by monounsaturated oleic acid ( 70.97 ± 4.6 wt.%), saturated palmitic acid ( 13.68 ± 1.0 wt.%), and polyunsaturated linoleic acid ( 8.41 ± 0.4 wt.%). The findings of this study demonstrated that limiting nitrogen availability enhanced lipid accumulation in Nannochloropsis sp. Despite experiencing inhibited growth, this microalga species shows great potential for the large-scale cultivation of lipids and essential fatty acids. These results contribute to understanding the relationship between nitrogen availability and lipid metabolism in microalgae, providing valuable insights for optimizing lipid production in the context of biofuel and biotechnology applications.
Details
- Title
- Lipid Enhancement in Oleaginous Nannochloropsis sp. under Nitrate Limitation for Future Bioenergy Production
- Authors/Creators
- Karthick Murugan Palanisamy - Universiti Malaysia Pahang Al-Sultan AbdullahPrakash Bhuyar - Maejo UniversityMohdHasbi Ab Rahim - Algae Culture Collection Center & Laboratory, Faculty of Industrial Sciences and Technology, University of Malaysia Pahang Al-Sultan Abdullah, Lbh Persiaran Tun Khalil Yaakob, Kampung Melayu Gambang, 26300 Kuantan, Pahang, MalaysiaAshiwin Vadiveloo - Murdoch University, Centre for Water, Energy and WasteNaif Abdullah Al-Dhabi - King Saud UniversityNatanamurugaraj Govindan - Hemwati Nandan Bahuguna Garhwal UniversityGaantyPragas Maniam - Algae Culture Collection Center & Laboratory, Faculty of Industrial Sciences and Technology, University of Malaysia Pahang Al-Sultan Abdullah, Lbh Persiaran Tun Khalil Yaakob, Kampung Melayu Gambang, 26300 Kuantan, Pahang, Malaysia
- Publication Details
- International journal of energy research, Vol.2023, 5412660
- Publisher
- Hindawi Publishing
- Identifiers
- 991005623662607891
- Copyright
- © 2023 Karthick Murugan Palanisamy et al.
- Murdoch Affiliation
- Murdoch University
- Language
- English
- Resource Type
- Journal article
UN Sustainable Development Goals (SDGs)
This output has contributed to the advancement of the following goals:
Source: InCites
Metrics
1 File views/ downloads
27 Record Views
InCites Highlights
These are selected metrics from InCites Benchmarking & Analytics tool, related to this output
- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.171 Photoproductivity
- 3.171.477 Microalgae Biotechnology
- Web Of Science research areas
- Energy & Fuels
- Nuclear Science & Technology
- ESI research areas
- Engineering