Immobilized microalgae harvesting and biomass collection
On the day-10 of culture, air aeration to the photobioreactor
was terminated and microalgae beads were separated from water
by using a sieve (mesh size of 0.5 mm). Then, all the microalgae
beads were solubilized with 2 w/v% sodium carbonate anhydrous
solution and dried in an oven at 80 ◦C for 2 h. The dried microalgae
biomass was collected and sealed in an empty container for lipid
extraction.