Preparation method and application of magnolia zenii bark extract

Abstract

The invention relates to a preparation method of a magnolia zenii bark extract. The preparation method includes the following steps: drying magnolia zenii barks to the moisture content of less than 10%, soaking with 8 times the amount of a 95% industrial alcohol for 3 times at the room temperature, wherein in the first time, soaking for 2-4 months, in the second time, soaking for 1-2 months, and in the third time, soaking for 20-40 days; and merging the three leached solutions, carrying out reduced pressure concentration, and thus obtaining the magnolia zenii bark extract. The magnolia zenii bark extract can be used as an effective ingredient for preparing anti-cancer drugs. The preparation method has simple and reasonable design, and can effectively extract to obtain effective ingredients of the magnolia zenii root bark; and the obtained extract has a better anti-tumor effect.

Description

technical field

[0001] The invention relates to a preparation method of a plant extract, in particular to a preparation method of Baohua magnolia bark extract. The present invention also provides the use of the extract prepared by the aforementioned method. Background technique

[0002] Magnolia zenii (Magnolia zenii) is a plant of the genus Magnolia in the family Magnoliaceae, which is a unique plant in China. The aggregate fruit of Baohua Magnolia is cylindrical, 6-14 cm long, 2-3 cm in diameter, and the follicles are round, with verrucous point-like protrusions. Seeds are broadly obovate, about 1 cm in length and width, with red outer testa and black inner testa. In the prior art, the Chinese patent application with publication number CN101028341 discloses a preparation method and application of Magnoliaceae plant extract. The scheme is prepared by extracting Magnoliaceae Magnolia plants and Michelia plants by warm soaking or cold soaking or reflux, liquid-liquid extra...