Cold extraction method of effective component of tea

Abstract

The cold-extraction method of effective component of tea at room temp. condition is mainly aimed at solving the problem of loss and modification of effective component of tea which is processed at high temp., and said method is characterized by that it uses tea as raw material, uses water or ethyl alcohol, ethyl ether and petroleum ether as solvent for extraction and mixes them, and makes them undergo the process of high-pressure treatment in a pressure container, its pressure is less than or equal to 100 MPa, and its pressure-retaining time is less than or equal to 5 min. after the pressure is released, the tea is filtered out so as to can obtain the extract of tea effective component.

Description

technical field [0001] The invention relates to a method for extracting effective components of tea leaves, in particular to a cold extraction method at room temperature. Background technique [0002] The active ingredients mentioned here refer to tea alkaloids, caffeine, tea polyphenols, tea polysaccharides, tea saponins, vitamins, tea pigments, etc. contained in tea leaves, which can treat diseases, regulate physiological activities, and treat human and animals. Ingredients that improve health status, promote development, or improve the color, aroma, and taste of food or feed. [0003] The extracted active ingredients can be separated and purified to obtain a single substance of various components, or a mixture of multiple components; they can also be used directly without separation and purification, such as tea, tea wine and other tea beverages . [0004] According to "Tea Deep Processing Technology" (edited by Yan Hongde, etc., China Light Industry Press, February 199...

AI Technical Summary

Problems solved by technology

Although this reduces the extraction temperature and reduces the loss of active ingredients, it brings a series of problems such as a substantial increase in production costs and environmental pollution.