Tea extracting solution and preparation method thereof

Abstract

The invention relates to a tea extracting solution and a preparation method thereof. The preparation method of the tea extracting solution, provided by the invention, comprises the following steps: (1) adding water into tea and performing water bath extraction to obtain a water extract; (2) performing enzymolysis: cooling the water extract obtained in the step (1), adding enzyme into the water extract and performing enzymolysis at the temperature of 30 to 50 DEG C for 1 to 6 hours, wherein the enzyme consists of protease, cellulase and tannase, the mass percentage of protease to the tea is more than 0 and less than or equal to 1.3%, the mass percentage of cellulase to the tea is more than 0 and less than or equal to 1.7% and the mass percentage of tannase to the tea is more than 0 and less than or equal to 1.3%; and (3) performing enzyme deactivation. When the tea extracting solution is prepared, enzymolysis is conducted by composite enzyme consisting of protease, cellulase and tannase, so under the combined action and the mutual influence of various enzyme, the quality of the obtained tea extracting solution is greatly improved, and the tea polyphenol content, the free amino acid content and the solid matter content of the tea extracting solution are obviously increased.

Description

technical field [0001] The invention relates to an extract and a preparation method thereof, in particular to a tea extract and a preparation method thereof. Background technique [0002] Today, tea has become one of the most popular soft drinks in the world. With the improvement of people's living standards and the quickening pace of life, tea beverages are widely welcomed by consumers due to their natural, healthy and convenient characteristics, and are developing very rapidly. Tea beverages are mainly beverages made from instant tea powder made from tea leaves through concentration, soaking, and drying processes, and then processed and blended. With the continuous expansion of the tea beverage market, instant tea has also developed rapidly. [0003] Tea extraction methods mainly include leaching, pouring, countercurrent, decoction, maceration, percolation, reflux and steam steaming. In addition, many studies have shown that tea extraction methods include microwave-assi...

AI Technical Summary

Problems solved by technology

However, most of the research on the application of tannase focuses on the removal of "cold muddy" in black tea beverages and the improvement of the cold capacity of instant tea, and it is rarely used in oolong tea beverages.

And now, the feasibility of removing "cold hind muddy" and removing bitter taste of oolong tea beverage has not been reported yet.

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