Preparation technique for high-fluorine tea extract

Abstract

The invention relates to a method for preparing a high-fluorine tea extract using a tea dry product with fluorine content of between 200 and 800 milligram / kilogram as a raw material; and the method comprises that the high-fluorine tea extract in a dry powder state is prepared by the procedures of leaching, coarse filtering, cooling, membrane filtration, reverse osmosis membrane condensation, extraction, vacuum condensation, spraying, drying and the like. The process has the characteristics of high yield, low energy consumption and easy operation; and the prepared extract has high fluorine content and has positive significance to a low-fluorine region and a fluorine-lacking group.

Description

technical field [0001] The invention relates to a preparation process of a high-fluorine tea extract, in particular to a preparation method of a high-fluorine tea extract using dry tea leaves with a fluorine content of 200-800 mg / kg as raw materials. Background technique [0002] Fluorine is one of the trace elements necessary for human life activities. An appropriate amount of fluorine is beneficial to the development of human bones and teeth. The application of fluoride to prevent dental caries is considered to be the most extensive and effective means at present. It is generally believed that the intake of fluorine is 3-5 mg / day for adults and 1-2 mg / day for children. But fluorine is the same as other elements, both excess and deficiency will be harmful to human health, so different countermeasures should be adopted for high-fluorine areas and low-fluorine areas, and use its advantages to avoid its harm. Due to the regional distribution of chemistry and the heterogeneity...

AI Technical Summary

Problems solved by technology

As a result, the fluorine obtained from food resources by people in some areas cannot meet the needs of the body