• How is microalgae oil extracted?
  • In the microalgae industry, the extraction of microalgae oil is an important process because it involves high energy consumption and high cost. At present, the main microalgae oil extraction methods are mechanical pressing , supercritical fluid extraction , enzyme extraction , and organic solvent extraction .
  • How to extract biologically ac-tive compounds from algae?
  • For the extraction of biologically ac-tive compounds from algae, diverse advanced approaches (e.g. solvent systems, sonication, ultrasound, microwave, enzymes, supercritical fluid, subcritical water) are investigated [1,5].
  • How can algal extracts be extracted?
  • Pro-duction of algal extracts by novel extraction techniques (supercritical fluid extraction, microwave-assisted extrac-tion, ultrasound-assisted extraction, enzyme-assisted ex-traction, pressurized liquid extraction) allows one to ob-tain products in a solvent-free environment that will be safe to plants, animals, and humans.
  • Which solvent is used for microalgae oil extraction?
  • Among all solvents that were used for the microalgae oil extraction, the polar single solvent system methanol achieved the optimal value (47.8% extraction yield) because the polar cell membrane was easily dissolved by the polar solvent. Hexadecanoic acid (38.54%) and docosanoic acid (54.39%) dominated in fatty acid of microalgae oil.
  • How to choose the appropriate method of extraction of algal biomass?
  • Summarizing, the final choice of the appropriate method of extraction depends on the source of algal biomass and the ex-tracted target compound. These methods have a significant po-tential for which degradation of the extracted biologically active compounds due to different extraction steps is minimized .
  • How many solvents can be used to extract microalgae oil?
  • Ramluckan et al. compared the impact of thirteen solvents in extracting microalgae oil and the result demonstrated the extraction yield using chloroform solvent was 10.8%, while the value was improved to 11.8% using binary solvent systems chloroform: methanol (1:1).