Synergistic effect of ultrasound and switchable hydrophilicity solvent promotes microalgal cell disruption and lipid extraction for biodiesel production

2021 ◽  
pp. 126087
Author(s):  
Hao Guo ◽  
Jun Cheng ◽  
Yuxiang Mao ◽  
Lei Qian ◽  
Weijuan Yang ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Lipid Extraction ◽  
Cell Disruption ◽  
Biodiesel Production ◽  
Switchable Hydrophilicity Solvent

The effects of microalgal cell disruption via FeCl3-based synergistic effect between Fenton-like and Lewis acid reaction for lipid extraction

2014 ◽  
Vol 6 ◽  
pp. 86-90 ◽  
Author(s):  
Dong-Yeon Kim ◽  
Ji-Yeon Park ◽  
Sun-A Choi ◽  
You-Kwan Oh ◽  
Il-Gyu Lee ◽  
...  
Keyword(s):  
Synergistic Effect ◽  
Lewis Acid ◽  
Lipid Extraction ◽  
Cell Disruption ◽  
Acid Reaction

Microalgae harvesting and cell disruption: a preliminary evaluation of the technology electroflotation by alternating current

2014 ◽  
Vol 70 (2) ◽  
pp. 315-320 ◽  
Author(s):  
Riamburgo Gomes de Carvalho Neto ◽  
José Gilmar da Silva do Nascimento ◽  
Mayara Carantino Costa ◽  
Alexandre Colzi Lopes ◽  
Eliezer Fares Abdala Neto ◽  
...  
Keyword(s):  
Lipid Extraction ◽  
Alternating Current ◽  
Cell Disruption ◽  
Biodiesel Production ◽  
Attractive Potential ◽  
Preliminary Evaluation ◽  
Waste Stabilization Ponds ◽  
High Productivity ◽  
Microalgae Harvesting ◽  
Batch Time

Some species of microalgae have high productivity and lipid content, which makes them good candidates for biodiesel production. Biomass separation and cell disruption are important steps in biodiesel production from microalgae. In this work, we explored the fundamentals of electroflotation by alternating current (EFAC) with non-consumable electrodes to simultaneously harvest microalgae and disrupt cells from mixed microalgae obtained from waste stabilization ponds. The harvesting efficiency was evaluated using chlorophyll-a and turbidity, which reached removals of 99% and 95%, respectively, during a batch time of 140 min. Cell disruption was evaluated using lipid extraction, and the best results were achieved with a batch time of 140 min, which resulted in a 14% yield. Therefore, EFAC was shown to be an attractive potential technology for simultaneous microalgal harvesting and cell disruption.

Comparison of cell disruption techniques prior to lipid extraction from Scenedesmus sp. slurries for biodiesel production using liquid CO2

2018 ◽  
Vol 20 (18) ◽  
pp. 4330-4338 ◽  
Author(s):  
K. J. Viner ◽  
P. Champagne ◽  
P. G. Jessop
Keyword(s):  
Microwave Radiation ◽  
Lipid Extraction ◽  
Cell Disruption ◽  
Biodiesel Production ◽  
Liquid Co2

Microwave radiation exhibits the highest potential for releasing lipids from Scenedesmus sp.

scholarly journals Comparison of Nannochloropsis sp. cells disruption between hydrodynamic cavitation and conventional extraction

2018 ◽  
Vol 154 ◽  
pp. 01023 ◽  
Author(s):  
Martomo Setyawan ◽  
Panut Mulyono ◽  
Sutijan ◽  
Arief Budiman
Keyword(s):  
Mass Transfer ◽  
Transfer Coefficient ◽  
Distribution Coefficient ◽  
Mass Transfer Coefficient ◽  
Lipid Extraction ◽  
Cell Disruption ◽  
Hydrodynamic Cavitation ◽  
Biodiesel Production ◽  
Experimental Result ◽  
Conventional Extraction

Biodiesel production from microalgae is one of the solution of the future energy problem, but its production cost is still high. One of the costly stages of this process is the lipid extraction process. It can be reduced by microalgae cell disruption. One of the mechanical method to cell disruption with the lowest energy requirement is hydrodynamic cavitation. This aim of this study is to evaluate the distribution coefficient and the mass transfer coefficient value of lipid extraction of Nannochloropsis sp. assisted by hydrodynamic cavitation and compare with conventional extraction. The hydrodynamic cavitation extraction was done at 34 °C, 1 atm. The conventional extraction was done at 34 °C, 1 atm with stirring speed 260 and 1000 rpm. The experimental result shows that the distribution coefficient dependent on the temperature with the values for 50, 44, 38 and 34 °C were 0.502, 0.394, 0.349, and 0.314 respectively. And it was according to Van’ Hoff equation with the values of ΔH° was 20.718 kJ/mol and ΔS° was 58.05 J/mol/K. The hydrodynamic cavitation extraction was faster than conventional. The mass transfer coefficient values for hydrodynamic cavitation, conventional 260 rpm and 1000 rpm were 7.373, 0.534 and 0.121 1/s respectively.

Biodiesel Production of Amphora sp. and Navicula sp. by Different Cell Disruption and Lipid Extraction Methods

2015 ◽  
Vol 9 (6) ◽  
pp. 588-595
Author(s):  
Haifa Chtourou ◽  
Ines Dahmen ◽  
Fatma Karray ◽  
Sami Sayadi ◽  
Abdelhafidh Dhouib
Keyword(s):  
Lipid Extraction ◽  
Extraction Methods ◽  
Cell Disruption ◽  
Biodiesel Production

scholarly journals AN INSIGHT ON ALGAL CELL DISRUPTION FOR BIODIESEL PRODUCTION

2018 ◽  
Vol 11 (2) ◽  
pp. 21 ◽  
Author(s):  
Aarthy A ◽  
Smita Kumari ◽  
Prachi Turkar ◽  
Sangeetha Subramanian
Keyword(s):  
Cell Wall ◽  
Enhanced Recovery ◽  
Algal Cell ◽  
Lipid Extraction ◽  
Algal Species ◽  
Cost Effective ◽  
Downstream Processing ◽  
Cell Disruption ◽  
Biodiesel Production ◽  
Cell Wall Disruption

 Objective: This review article deals with the effect that various cell disruption techniques have on the efficiency of lipid extraction. We have reviewed existing algal cell disruption techniques that aid the biodiesel production process.Methods: Current rise in demand for energy has led the researcher to focus on the production of sustainable fuels, among which biodiesel has received greater attention. This is due to its larger lipid content, higher growth rate, larger biomass production, and lower land use. Extraction of lipid from algae (micro and macro) for the production of biodiesel involves numerous downstream processing steps, of which cell wall disruption is a crucial step. Bead milling, high-pressure homogenization, ultra-sonication, freeze-drying, acid treatment, and enzymatic lysis are some methods of cell disruption. The cell disruption technique needs to be optimized based on the structure and biochemical composition of algae.Result: The lipid extraction efficiency varies depending on the algal species and the cell disruption technique used.Conclusion: In-depth research and development of new techniques are required to further enhance the cell disruption of the algal cell wall for the enhanced recovery of lipids. In addition, the operating costs and energy consumption should also be optimized for the cost-effective recovery.

scholarly journals Exergy analysis of conventional and hydrothermal liquefaction–esterification processes of microalgae for biodiesel production

2020 ◽  
Vol 18 (1) ◽  
pp. 874-881
Author(s):  
Laras Prasakti ◽  
Sangga Hadi Pratama ◽  
Ardian Fauzi ◽  
Yano Surya Pradana ◽  
Arief Budiman ◽  
...  
Keyword(s):  
Renewable Energy ◽  
Exergy Analysis ◽  
Lipid Extraction ◽  
Hydrothermal Liquefaction ◽  
Raw Material ◽  
Biodiesel Production ◽  
Exergy Loss ◽  
Thermochemical Conversion ◽  
Third Generation ◽  
Land Utilization

AbstractAs fossil fuels were depleting at an alarming rate, the development of renewable energy has become necessary. One of the promising renewable energy to be used is biodiesel. The interest in using third-generation feedstock, which is microalgae, is rapidly growing. The use of third-generation biodiesel feedstock will be more beneficial as it does not compete with food crop use and land utilization. The advantageous characteristic which sets microalgae apart from other biomass sources is that microalgae have high biomass yield. Conventionally, microalgae biodiesel is produced by lipid extraction followed by transesterification. In this study, combination process between hydrothermal liquefaction (HTL) and esterification is explored. The HTL process is one of the biomass thermochemical conversion methods to produce liquid fuel. In this study, the HTL process will be coupled with esterification, which takes fatty acid from HTL as raw material for producing biodiesel. Both the processes will be studied by simulating with Aspen Plus and thermodynamic analysis in terms of energy and exergy. Based on the simulation process, it was reported that both processes demand similar energy consumption. However, exergy analysis shows that total exergy loss of conventional exergy loss is greater than the HTL-esterification process.

Enhanced productivity of lipid extraction by urea stress conditions on marine microalgae Coelastrum sp. for improved biodiesel production

2021 ◽  
pp. 100696
Author(s):  
Prakash Bhuyar ◽  
Sathyavathi Sundararaju ◽  
Mohd Hasbi Ab. Rahim ◽  
Gaanty Pragas Maniam ◽  
Natanamurugaraj Govindan
Keyword(s):  
Lipid Extraction ◽  
Marine Microalgae ◽  
Stress Conditions ◽  
Biodiesel Production
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