Preparing method for extracts of red clover

Abstract

An extract of red clover herb rich in isoflavone is prepared from fresh red clover herb through extracting in alcohol, recovering alcohol, concentrating the extracted liquid, laying aside to obtain deposit, and drying.

Description

technical field [0001] The invention relates to a plant extract, in particular to a process for preparing red clover extract by using fresh raw materials. Background technique [0002] Red clover (Trifolium pratense L.) is a perennial herbaceous plant of the genus Trifolium in the family Leguminosae, also known as red clover and red clover. The wild species has been planted in the southern provinces of the Yangtze River Basin in recent years. Red clover is originally an excellent pasture for livestock. Recent research results show that its inflorescences and flowering branches and leaves contain a large amount of isoflavones. The dihydroxyphenolic structure of red clover isoflavones is similar to the structure of estrogen in animals. Therefore, Has estrogen-like effects. Isoflavones act as estrogen agonists when the level of endogenous estrogen in the body is low; while when the level of estrogen in the body is high, it occupies the estrogen receptor and acts as an anti-es...

AI Technical Summary

Problems solved by technology

However, the inventors found that the content of the active ingredients in the dried red clover in the above state is not high, which has a great influence on the subsequent refining of isoflavones

In addition, the general process has no requirements on the harvesting season of the raw materials, and no one has made relevant research on how to keep the active ingredients in the red clover raw materials to the maximum extent.

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