The invention belongs to the technical field of
algae cultivation, and discloses a method for preparing
algae powder through high-density culture of
isochrysis galbana. The method comprises the following steps that
isochrysis galbana cultured to a
logarithmic growth phase is inoculated to a culture container containing a culture medium for culture for 9-12 days, and an
algae solution is collected;the algae solution is put into a disc
centrifuge for
centrifugation, a precipitate is collected, then placed under a low temperature condition of subzero 20 DEGC to be subjected to
refrigeration for30-60 minutes, and then placed in a
vacuum drying box of 50-60 DEG C to be dried to constant weight, the dried algae body is collected, finally placed in a universal
crusher for crushing and sieved through a 200-mesh
sieve, a sieved material is collected, and the algae
powder is obtained. The method for preparing the algae
powder through the high-density culture of the
isochrysis galbana has the advantages that the isochrysis galbana is obtained through high-density culture, then the algae powder is prepared through freezing,
drying, crushing and other steps, the process is simple and feasible,
dewatering is thorough, and the algae powder can be used as a
feed additive in
aquaculture.