The present invention relates to a method of extracting a liquid extract directly from a crude culture medium having chlorella grown therein, unlike the prior method of extracting a chlorella extract by dissolving chlorella powder in water. The inventive method comprises the steps of: heating a crude culture medium having chlorella grown therein so as to extract a content in which nutrients are contained in the chlorella cell membrane; ii) separating the content extracted in the heating/extraction step into an insoluble cell membrane and a beneficial substance by means of a centrifuge; iii) filtering the beneficial substance separated in the cell separation step; and sterilizing the beneficial substance resulting from the filtration step.
WO/2006/095964
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