Preparation process of selenium-enriched Maoyanberry tea

Abstract

The invention aims to disclose a tea processing method to solve problems that ampelopsis grossedentata tea has poor taste, poor color and luster degree and too slow dissolution speed of effective components, and ensure that tea leaf fungus growing has good uniformity, and the tea is convenient for drinking, can keep the original quality of traditional fermented tea and is rich in organic selenium and flavonoids substances. The processing method successively comprises the following processing steps: preparing fresh ampelopsis grossedentata raw materials, carrying out fixation, carrying out pile fermentation, adding sodium selenite, steaming the tea, spraying eurotium cristatum spore powder, sterilizing after sealing tea leaves, carrying out tea leaf fungus growing, carrying out ultrasonic treatment, and baking and packaging. A large amount of eurotium cristatum spore powder is employed for rapid fermentation, thus miscellaneous bacteria growth is reduced, the tea leaf moldy problem cannot be caused, and the effect of a eurotium cristatum liquid culture medium on the original flavor of the tea leaves is avoided; with addition of the ampelopsis grossedentata leaves, the growth of harmful bacteria can be significantly inhibited, and the content of selenium in the tea leaves can be increased; and the ultrasonic treatment can reduce autolysis phenomenon of eurotium cristatum, can achieve the function of fixing eurotium cristatum, is conducive to furthest protect organic selenium, reduces high-temperature oxidation degradation of organic selenium, and simultaneously also can prevent eurotium cristatum from shrinking thalli at the high temperature.

Description

Technical field: [0001] The invention belongs to the field of biological fermentation, and relates to a flowering process of Maoyan berry, and more specifically relates to a production process of selenium-enriched Maoyan berry. Background technique [0002] Maoyanberry is also known as Tujia Ganlu, Tujia God Tea, Guanyin Grass and so on. Its active ingredients are mainly dihydromyricetin and flavonoids, and it also contains 17 essential amino acids such as leucine, isoleucine, and methionine, and 14 trace elements such as potassium, calcium, iron, zinc, and selenium, among which flavonoids are the highest The detection content is 9.31%, which is the highest flavonoid content among all plants found so far, and is called the "king of flavonoids" in plants. Maoyanberry is mainly wild in selenium-rich areas such as Zhangjiajie, and the content of selenium in Maoyanberry leaves is relatively high. Selenium is closely related to the occurrence and development of diabetes. Studi...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to disclose a tea that can solve the problems of poor taste and color of Maoyan berry tea, and the dissolution rate of its active ingredients is too slow, ensure the uniformity of tea flowering, and is easy to drink, and can maintain the original quality of traditional fermented tea. High-quality tea processing method rich in organic selenium and flavonoids