Harvesting and lipids extraction of Pavlova Lutheri

The use of microalgal lipids for liquid fuels production is an emerging alternative. Before extracting lipids from microalgae, some important stages are necessary such as: microalgae dewatering and lipids extraction. The cultivation of microalgae is made in a great amount of water, then it is necessary the use of water removal techniques before the lipids extraction. Furthermore, lipids extraction techniques must be tuned up in order to achieve a better separation depending on the type of technique and the solvent. The purpose of the present study is to compare two different microalgae harvesting techniques and two methods for the total lipids extraction of Pavlova–Lutheri microalgae. The studied harvesting techniques for microalgae recovery were: flocculation–coagulation (99.8% efficiency) and electrocoagulation (97.4% efficiency). Two extraction methods were also studied with different solvents: Soxhlet and ultrasound. It was observed that, the use of ultrasound irradiation for lipids extraction improves the extraction efficiency. In ultrasound extraction, the highest percentage (47.20%) was reached with a mixture of chloroform and methanol 1:2 as extraction solvent. © 2016 American Institute of Chemical Engineers Environ Prog, 35: 1842–1847, 2016

[1]  C. Barrow,et al.  Comparison of Cell Disruption Methods for Improving Lipid Extraction from Thraustochytrid Strains , 2015, Marine drugs.

[2]  P. Schenk,et al.  A comparative study: the impact of different lipid extraction methods on current microalgal lipid research , 2014, Microbial Cell Factories.

[3]  V. S. Moholkar,et al.  Numerical Simulation and Investigation of System Parameters of Sonochemical Process , 2013 .

[4]  B. Ghobadian,et al.  Harvesting of Microalgae Dunaliella salina Using Electroflocculation , 2013 .

[5]  Likun Wei,et al.  Effect of high ferric ion concentrations on total lipids and lipid characteristics of Tetraselmis subcordiformis, Nannochloropsis oculata and Pavlova viridis , 2013, Journal of Applied Phycology.

[6]  M. Abdullah,et al.  Effects of photoperiod, salinity and pH on cell growth and lipid content of Pavlova lutheri , 2013, Annals of Microbiology.

[7]  Farid Chemat,et al.  New procedure for extraction of algal lipids from wet biomass: a green clean and scalable process. , 2013, Bioresource technology.

[8]  N. Khorasani,et al.  NONLINEAR STATICS ANALYSIS OF ON OFFSHORE JAKET PLATFORM IN THE CASE OF EXPLOSION , 2013 .

[9]  K. Srinivasakumar,et al.  Biodiesel Fuel Production from Marine Microalgae Isochrysis galbana , Pavlova lutheri , Dunaliella salina and Measurement of its Viscosity and Density , 2013 .

[10]  G. Araújo,et al.  Extraction of lipids from microalgae by ultrasound application: prospection of the optimal extraction method. , 2013, Ultrasonics sonochemistry.

[11]  Xuxiong Huang,et al.  Effects of nitrogen supplementation of the culture medium on the growth, total lipid content and fatty acid profiles of three microalgae (Tetraselmis subcordiformis, Nannochloropsis oculata and Pavlova viridis) , 2013, Journal of Applied Phycology.

[12]  Tong Wang,et al.  Evaluation of microalgae cell disruption by ultrasonic treatment. , 2012, Bioresource technology.

[13]  R. Urek,et al.  Biodiesel production from microalgae , 2012 .

[14]  F. G. Acién,et al.  Evaluation of flocculants for the recovery of freshwater microalgae. , 2012, Bioresource technology.

[15]  P. Schenk,et al.  High Lipid Induction in Microalgae for Biodiesel Production , 2012 .

[16]  Hongli Zheng,et al.  Harvesting of microalgae by flocculation with poly (γ-glutamic acid). , 2012, Bioresource technology.

[17]  P. Webley,et al.  Extraction of oil from microalgae for biodiesel production: A review. , 2012, Biotechnology advances.

[18]  R. Maceiras,et al.  Influence of n -Hexane on in Situ Transesterification of Marine Macroalgae , 2012 .

[19]  Imogen Foubert,et al.  Optimization of an Analytical Procedure for Extraction of Lipids from Microalgae , 2012 .

[20]  Shyue-Ming Jang,et al.  Comparative study of lipid extraction from microalgae by organic solvent and supercritical CO2. , 2011, Bioresource technology.

[21]  A. Hoadley,et al.  A parametric study of electrocoagulation as a recovery process of marine microalgae for biodiesel production , 2011 .

[22]  M. Demirbas.  Biofuels from algae for sustainable development , 2011 .

[23]  Imogen Foubert,et al.  Evaluation of electro‐coagulation–flocculation for harvesting marine and freshwater microalgae , 2011, Biotechnology and bioengineering.

[24]  Roberto E. Armenta,et al.  Developments in oil extraction from microalgae. , 2011 .

[25]  Yung-Tse Hung,et al.  Electrocoagulation in Wastewater Treatment , 2011 .

[26]  K. G. Satyanarayana,et al.  A review on microalgae, a versatile source for sustainable energy and materials , 2011 .

[27]  Yong-Ha Park,et al.  Harvest of Scenedesmus sp. with bioflocculant and reuse of culture medium for subsequent high-density cultures. , 2011, Bioresource technology.

[28]  Jo‐Shu Chang,et al.  Cultivation, photobioreactor design and harvesting of microalgae for biodiesel production: a critical review. , 2011, Bioresource technology.

[29]  Philip Owende,et al.  Biofuels from microalgae—A review of technologies for production, processing, and extractions of biofuels and co-products , 2010 .

[30]  H. Oh,et al.  Comparison of several methods for effective lipid extraction from microalgae. , 2010, Bioresource technology.

[31]  Boudewijn Meesschaert,et al.  Flocculation of microalgae using cationic starch , 2009, Journal of Applied Phycology.

[32]  Peter J. Ashman,et al.  Microbial flocculation, a potentially low-cost harvesting technique for marine microalgae for the production of biodiesel , 2009, Journal of Applied Phycology.

[33]  G. C. Zittelli,et al.  Pavlova lutheri: Production, preservation and use as food for Crassostrea gigas larvae , 2008 .

[34]  Fadil Othman,et al.  Electrocoagulation for wastewater , 2008 .

[35]  R. Robert,et al.  Influence of phytoplankton diet mixtures on microalgae consumption, larval development and settlement of the Pacific oyster Crassostrea gigas (Thunberg) , 2006 .

[36]  J. Gregory,et al.  Coagulation by hydrolysing metal salts , 2003 .