Here, the high algal biomass obtained in the crude glycerolcontaining
medium might be due to the residual soap contained
in crude glycerol. As described in Section 2.2, when crude
glycerol (at 90 g/L) was mixed with seawater, soap precipitated
from the liquid, which later proved detrimental to cell growth.
However, our ongoing experiments show that crude glycerol
extract still contains a small amount (