Development of a pretreatment method based on Fenton-like reaction combined with hydrodynamic cavitation for lipid extraction from wet microalgae

2021 ◽  
Author(s):  
Ilgyu Lee ◽  
Jong-In Han
Keyword(s):  
Lipid Extraction ◽  
Hydrodynamic Cavitation ◽  
Pretreatment Method ◽  
Wet Microalgae

scholarly journals Comparison of Hexane, Methanol, and Their Mixtures as Solvents for Microalgae Lipid Extraction by Hydrodynamic Cavitation

2021 ◽  
Vol 7 (2) ◽  
pp. 83
Author(s):  
Martomo Setyawan ◽  
Siti Jamilatun ◽  
Muhammad Nufail Syafii ◽  
Resyaldi Pratama
Keyword(s):  
Lipid Extraction ◽  
Hydrodynamic Cavitation

Disintegration of wet microalgae biomass with deep-eutectic-solvent-assisted hydrothermal treatment for sustainable lipid extraction

2022 ◽  
Author(s):  
Rui Huang ◽  
Yu He ◽  
Xianrui Yao ◽  
Yujie Yu ◽  
Wenlu Song ◽  
...  
Keyword(s):  
Hydrogen Bond ◽  
Hydrothermal Treatment ◽  
Lipid Extraction ◽  
Deep Eutectic Solvent ◽  
Microalgae Biomass ◽  
Wet Microalgae

Deep eutectic solvent (DES) with abundant hydrogen bond acceptors and donors was employed to promote disintegration of microalgae biomass with hydrothermal treatment (HTT) for green lipid extraction. The lipid extraction...

Effects of Acid-fermented Food Wastewater in Microwave-based Direct Lipid Extraction from Wet Microalgae

2021 ◽  
Author(s):  
Kyoung-Woo Kim ◽  
Hyeon-Jin Jeon ◽  
Jung-Hyeon Kim ◽  
Kyeong-Hwan Kang ◽  
Im-Gyu Byun
Keyword(s):  
Lipid Extraction ◽  
Fermented Food ◽  
Food Wastewater ◽  
Wet Microalgae

Hydrodynamic cavitation as an efficient pretreatment method for lignocellulosic biomass: A parametric study

2017 ◽  
Vol 235 ◽  
pp. 301-308 ◽  
Author(s):  
Ruly Terán Hilares ◽  
Gabriela Faria de Almeida ◽  
Muhammad Ajaz Ahmed ◽  
Felipe A.F. Antunes ◽  
Silvio Silvério da Silva ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Parametric Study ◽  
Hydrodynamic Cavitation ◽  
Pretreatment Method

scholarly journals Electro-Fenton Based Technique to Enhance Cell Harvest and Lipid Extraction from Microalgae

Energies ◽  
2020 ◽  
Vol 13 (15) ◽  
pp. 3813 ◽  
Author(s):  
Shuai Zhang ◽  
Yuyong Hou ◽  
Zhiyong Liu ◽  
Xiang Ji ◽  
Di Wu ◽  
...  
Keyword(s):  
Cell Wall ◽  
Lipid Extraction ◽  
Extraction Yield ◽  
Biofuel Production ◽  
Transmission Electron ◽  
Cell Wall Disruption ◽  
Dry Cell Weight ◽  
Major Bottleneck ◽  
Wet Microalgae ◽  
Disruption Method

Currently, lipid extraction remains a major bottleneck in microalgae technology for biofuel production. In this study, an effective and easily controlled cell wall disruption method based on electro-Fenton reaction was used to enhance lipid extraction from the wet biomass of Nannochloropsis oceanica IMET1. The results showed that 1.27 mM of hydroxide radical (HO•) was generated under the optimal conditions with 9.1 mM FeSO4 in a 16.4 mA·cm−2 current density for 37.0 min. After the electro-Fenton treatment, the neutral lipid extraction yield of microalgae (~155 mg) increased from 40% to 87.5%, equal to from 12.2% to 26.7% dry cell weight (DCW). In particular, the fatty acid composition remained stable. The cell wall disruption and lipid extraction processes were displayed by the transmission electron microscope (TEM) and fluorescence microscopy (FM) observations, respectively. Meanwhile, the removal efficiency of algal cells reached 85.2% within 2 h after the reaction was terminated. Furthermore, the biomass of the microalgae cultured in the electrolysis wastewater treated with fresh nutrients reached 3 g/L, which is 12-fold higher than that of the initial after 24 days. These finds provided an economic and efficient method for lipid extraction from wet microalgae, which could be easily controlled by current magnitude regulation.

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