Traditional Chinese medicine composition with improving cognition effect, preparation method thereof and traditional Chinese medicine preparation

A traditional Chinese medicine composition with improving cognition effect, wherein the traditional Chinese medicine composition is made from following raw materials:

• 16-20 parts by weight of Gastrodiae rhizoma, 10-14 parts by weight of Polygala tenuifolia Willd., 16-20 parts by weight of Acorus tatarinowii, 5-7 parts by weight of Cistanche deserticola Ma, 5-7 parts by weight of Rehmanniae radix praeparata, and 0.05-0.15 parts by weight of curcumin;
• wherein the traditional Chinese medicine composition is prepared by a method comprising the following steps:
• ethanol extraction:
• heating and refluxing Gastrodiae rhizoma and Polygala tenuifolia Willd. with ethanol aqueous solution, and collecting an ethanol extraction solution and an ethanol extraction residue;
• water extraction:
• heating and refluxing Acorus tatarinowii with water, and collecting Acorus tatarinowii solution, Acorus tatarinowii residue and Acorus tatarinowii volatile oil;
• heating and refluxing Cistanche deserticola Ma, Rehmanniae radix praeparata, the ethanol extraction residue, the Acorus tatarinowii residue with water, and collecting a water extraction solution;
• filtration and concentration:
• mixing the ethanol extraction solution, the Acorus tatarinowii solution and the water extraction solution to obtain a mixing solution, and filtrating and concentrating the mixing solution to obtain an extractum;
• encapsulation:
• mixing the Acorus tatarinowii volatile oil and curcumin, and obtaining micropellets by cyclodextrin encapsulating;
• and
• mixing:
• mixing the extractum and the micropellets.