Camellia oil compatible with green tea extract and preparation method thereof

Abstract

The invention relates to camellia oil compatible with a green tea extract and a preparation method thereof. The camellia oil compatible with the green tea extract comprises the green tea extract and the camellia oil in mass ratio of 1:10-100. According to the invention, a colloid mill is used to fully destroy green tea cells by milling, and the green tea milk is obtained to fully extract tea polyphenols and fat-soluble vitamins A, K and E contained in green tea. The preparation method of the invention can achieve the effect of separating more tea fat-soluble substances through a simple centrifugal process. The preparation method of the invention separates tea emulsion with high oil content through high-speed centrifugation, and then carries out two-step demulsification including enzymolysis with compound enzyme and ethanol extraction on the emulsion. The preparation method achieves complete demulsification, smaller volume of the emulsion, great reduction of enzyme dosage, and simple and economic processes. According to the present invention, the microwave, compound enzymolysis and ethanol-assisted extraction are combined to extract the tea polyphenols and the fat-soluble vitamins A, E, K, etc., in green tea, thereby preserving natural active ingredients in the tea well. The extraction process is safe and keeps nutritional ingredients well.

Description

technical field

[0001] The invention relates to the field of edible oil processing, in particular to camellia oil compatible with green tea extract and a preparation method thereof. Background technique

[0002] The traditional camellia oil preparation is obtained from camellia oleifera, and the nutritional value of the obtained camellia oil is only the nutrition of crude oil tea, which is relatively simple.

[0003] The traditional extraction of tea components is to use organic solvents such as ethyl acetate to extract the active ingredients in the tea leaves with polar solvents. There are still the following disadvantages: 1) It needs to use a variety of organic solvents, and the amount of organic solvents is large, 2) The process It is cumbersome, and needs to be extracted and concentrated multiple times in the middle, and the heating time is long, which causes a relatively large oxidation loss of tea polyphenols; 3) The extraction rate of active ingredients is low. Con...