The operation involved in the existing Apigenin Iherb preparation method is more complicated, and the apigenin purity obtained is lower, thereby causing excessive consumption and waste of raw materials. In addition, in the existing apigenin application process, because the purity of the existing Apigenin Iherb is lower, the made capsule or other health care products treatment and health care effects are not ideal. CN200810127091 provides a preparation method of apigenin that can obtain higher purity, and apigenin soft capsules with functions such as regulating blood pressure, regulating blood lipids, resisting oxidation, and being able to improve immunity and delay aging. For achieving the above object, the invention provides a kind of preparation method of apigenin, comprising the following steps:
a. After the celery seeds are screened and pulverized, they are placed in an alcohol container with a content of 70%, and after stirring, let stand;
b. After the powdered celery seeds are fused with alcohol, they change from powdery to granular;
c. The granular mixture in the container is extracted three times, and the time interval of each extraction is two hours;
d. The extracted particles are filtered through the solution, and subjected to decompression and concentration treatment to prepare powdered refined apigenin.
The present invention has the following advantages: the present invention provides a method for preparing apigenin. After sifting and pulverizing celery seeds, they are placed in an alcohol container with a content of 70%, stirred, and left to stand; the powdered celery seeds are mixed with After the alcohol is fused, it changes from powder to granular; the granular mixture in the container is extracted three times, and the time interval for each extraction is two hours; the extracted particles are filtered through the solution, and after decompression and concentration treatment , so as to make powdered refined apigenin, and the purity of refined Apigenin Iherb after extraction is 98%. The application of this method is to prepare powdered apigenin and oily deep-sea fish oil, and put them into capsules. 300-350mg. The present invention has the functions of regulating blood pressure, regulating blood lipids, anti-oxidation, improving immunity, delaying aging, etc., and long-term use is beneficial to health; in addition, celery seeds are used as the main raw material, because the raw materials are easy to obtain and cheap, and the purity of the product is improved. At the same time, the waste of raw materials is avoided, and the processing cost is also reduced.