The inventeion discloses maca flower superfine
powder and a preparation method thereof. The preparation method comprises the following steps: S1,
drying, namely first pre-freezing maca flowers, and performing vacuum
freeze drying, so that the
moisture content is 3-7%; S2, coarse
grinding, namely
grinding the dried maca flowers into coarse
powder, and standing under the condition of 0-15 DEG C; and S3,
superfine grinding, namely introducing air subjected to
freeze drying into the coarse
powder, and obtaining the maca flower superfine powder by adopting a
cell disruption
superfine grinding technology, wherein the particle size of the powder is less than 10 microns. According to the invention, the defects that the
traditional Chinese medicine health care products are complicated in
processing, nutritive materials are lost in the
processing process and the like are overcome due to the adoption of a low-temperature disruption
superfine grinding method. Pigments, other additives and the like are not added in the operating process, so that the
nutrition and
flavor substances of the maca flower are remained to the greatest degree, the obtained maca flower superfine powder is pure, natural, safe and sanitary, the
retention rate of active ingredients such as macamides,
glucosinolate,
adenosine, total saponins and the like is high, and the powder is uniform.