Evaluation of a native oleaginous marine microalga Nannochloropsis oceanica for dual use in biodiesel production and aquaculture feed

2019 ◽  
Vol 120 ◽  
pp. 439-447 ◽  
Author(s):  
Mohamed Ashour ◽  
Mostafa E. Elshobary ◽  
Rania El-Shenody ◽  
Abdel-Wahab Kamil ◽  
Abd El-Fatah Abomohra
Keyword(s):  
Biodiesel Production ◽  
Nannochloropsis Oceanica ◽  
Dual Use ◽  
Marine Microalga ◽  
Aquaculture Feed

Biodiesel production from Vietnam heterotrophic marine microalga Schizochytrium mangrovei PQ6

2013 ◽  
Vol 116 (2) ◽  
pp. 180-185 ◽  
Author(s):  
Dang Diem Hong ◽  
Dinh Thi Ngoc Mai ◽  
Le Thi Thom ◽  
Nguyen Cam Ha ◽  
Bui Dinh Lam ◽  
...  
Keyword(s):  
Biodiesel Production ◽  
Marine Microalga

scholarly journals Operation Regimes: A Comparison Based on Nannochloropsis oceanica Biomass and Lipid Productivity

Energies ◽  
2021 ◽  
Vol 14 (6) ◽  
pp. 1542
Author(s):  
Inês Guerra ◽  
Hugo Pereira ◽  
Margarida Costa ◽  
Joana T. Silva ◽  
Tamára Santos ◽  
...  
Keyword(s):  
Large Scale ◽  
Continuous Cultivation ◽  
Fold Increase ◽  
Continuous Operation ◽  
Lipid Productivity ◽  
Biodiesel Production ◽  
Nannochloropsis Oceanica ◽  
Operation Regime ◽  
Significant Research ◽  
Tubular Photobioreactors

Microalgae are currently considered to be a promising feedstock for biodiesel production. However, significant research efforts are crucial to improve the current biomass and lipid productivities under real outdoor production conditions. In this context, batch, continuous and semi-continuous operation regimes were compared during the Spring/Summer seasons in 2.6 m3 tubular photobioreactors to select the most suitable one for the production of the oleaginous microalga Nannochloropsis oceanica. Results obtained revealed that N. oceanica grown using the semi-continuous and continuous operation regimes enabled a 1.5-fold increase in biomass volumetric productivity compared to that cultivated in batch. The lipid productivity was 1.7-fold higher under semi-continuous cultivation than that under a batch operation regime. On the other hand, the semi-continuous and continuous operation regimes spent nearly the double amount of water compared to that of the batch regime. Interestingly, the biochemical profile of produced biomass using the different operation regimes was not affected regarding the contents of proteins, lipids and fatty acids. Overall, these results show that the semi-continuous operation regime is more suitable for the outdoor production of N. oceanica, significantly improving the biomass and lipid productivities at large-scale, which is a crucial factor for biodiesel production.

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