As a result, the unicellular algal cells
were released from the algal colony and the algal oil existed mainly
in the matrixes of the outer wall were recovered. However, the outer
wall structure of the algal colonies was damaged less and the algal
oil recovery efficiency was reduced when the water content of
the wet algal biomass increased. The GC–MS analysis illustrated
that C33H56 and C34H58 hydrocarbons represented the major components
of the algal oil. The pattern of the hydrocarbon expression
in the cells of B. braunii indicated that this strain belongs to B race
(CnH2n10, n = 30–37) [13].