Euryale ferox seed
1、 Standard of Euryale ferox seed Pharmacopoeia         This product is the dried and mature seed kernel of Euryale ferox salisb., a plant of the water lily family. Harvest the mature fruits in late autumn and early winter, remove the peel, take out the seeds, wash them, remove the hard shell (outer seed coat), and dry them in the sun.
        [character]   This product is quasi spherical, mostly broken particles, with a complete diameter of 5 ~ 8mm. There is a brownish red or reddish brown Endosperm on the surface, one end is yellowish white, accounting for about 1/3 of the whole, and there is a concave point shaped seed umbilicus mark, which appears white after removing the endosperm. It is hard, white in cross section, and powdery. The air is weak and the taste is light.
        . It is mainly starch granules, single granules are round, with a diameter of 1-4 μ m, and large umbilicus is faintly visible; Most of the compound particles are composed of more than 100 particles, which are spherical like, with a diameter of 13-35 μ m, and a few are composed of 2-3 particles.
          (2) Take 2G of this product powder, add 30ml of dichloromethane, sonicate for 15 minutes, filter, evaporate the filtrate, add 2ml of ethyl acetate to dissolve the residue as the test solution. Take another 2G of Euryale ferox fruit as the control medicinal material, and prepare the control medicinal material solution in the same way. . In the chromatogram of the test sample, spots of the same color appear on the corresponding position of the chromatogram of the control medicinal material.
        [check]   Moisture   Not more than 14.0% (the second method of general rule 0832).
        The total ash content shall not exceed 1.0% (general rule 2302).
        Decoction pieces
        [processing]   Euryale ferox seeds remove impurities.
        [character] [identification] [inspection]   Same as medicinal materials.
        Stir fry the Euryale ferox with bran. Remove the Euryale ferox and stir fry it according to the method of stir frying with bran (general rule 0213) until it is yellowish.
        This product is shaped like Euryale ferox, with a yellow or yellowish surface. .
        [check]   Moisture   No more than 10.0% for the same medicinal materials.
        ;   Same as medicinal materials.
        [nature, taste and meridian tropism]   Sweet, astringent and flat. Return to spleen and kidney channels.
        ; Tonify the kidney and strengthen the essence, tonify the spleen and stop diarrhea, and remove dampness and tourniquet. It is used for spermatorrhea, spermatorrhea, enuresis, frequent urination, prolonged diarrhea due to spleen deficiency, white turbidity, and vaginal discharge.
        [usage and dosage]   9～15g。
        ; Place in a ventilated and dry place to prevent moths.


2、 Chemical constituents of Euryale ferox seed
. In addition, it also contains calcium, phosphorus, iron, vitamins B1, B2, C, niacin and carotene.

3、 Pharmacological effects of Euryale ferox seed
Tonify the kidney and strengthen the essence, tonify the spleen and stop diarrhea, dispel dampness and stop band. It is used for the treatment of insomnia, enuresis, frequent urination, prolonged diarrhea due to spleen deficiency, white turbidity, and diarrhea.