although Xu and his colleagues reported a value
of 26.40 g/L when using Rhodosporidium toruloides with crude
glycerol in an agitation tank, and a maximum lipid content of
69.5% (12). The value obtained with an airlift bioreactor in the
current study is very close to the highest value obtained in the agitation tank. As shown in the previous section, the cells grown in
the airlift bioreactor could have a higher lipid content than those
grown in the agitation tank at 1 vvm.