Extraction of Bio‐oils from Microalgae

Hydrothermal Disintegration and Extraction of Different Microalgae Species

“…For algae the disintegration process may have an important influence on the fraction of lipids that can be extracted [46]. The grade of influence depends on the cell morphology.…”

Microbial Biodiesel Production - Oil Feedstocks Produced from Microbial Cell Cultivations

“…The extraction process is significantly affected by operation condition, such as temperature and pressure. Accelerated solvent extraction (ASE) is named when the operation temperature is higher than that of solvent boiling point, which can be used for oil extraction from dry biomass (Cooney, Young et al 2009). Mixture chloroform and methanol (Bligh and Hyer method) is the most common organic solvent to extract oil from biomass.…”

“…Carbon dioxide is the most commonly used supercritical fluid, sometimes modified by co-solvents such as ethanol or methanol. Critical temperature and critical pressure of carbon dioxide is at 31°C and 74 bar, respectively (Cooney, Young et al 2009). Supercritical fluids produce highly purified extracts without using toxic solvent; and the process is fast and safe for thermally sensitive products.…”

Production of Biodiesel From Microalgae.

“…Consequently, for laboratory scale extraction of lipids, freeze-drying (J. Lee et al, 2010) is a popular method, but spray-drying (Koberg et al, 2011), oven-drying (Cooney et al, 2009) or vacuum-evaporation (Umdu et al, 2009) have also been used to dry microalgae. However, drying microalgae prior to lipid extraction could require 2.5 times more energy than a process without drying, which makes a process using a prior drying unprofitable (negative balance) (Lardon et al, 2009).…”