Preparation method of black tea beverage rich in polysaccharides

Abstract

The invention discloses a preparation method of a black tea beverage rich in polysaccharides. The preparation method comprises following steps: 1, ammonification, wherein black tea is subjected to low temperature fermentation and ammonification treatment; 2, extraction, wherein ammonification, the black tea is subjected to sterilization, and a plant extracted solution is added for extraction at 15kHz to 24kHz microwave heating conditions; 3, heat reaction, wherein an organic selenium solution and a mineral matter solution are added for reaction; 4, ingredient adding, wherein a mushroom extracted solution is added into an obtain black tea solution, and stage heating is adopted for heating processing; and 5, disinfection and filling, wherein an obtained polysaccharide black tea solution is subjected to disinfection in a disinfection tank, is filtered using 1<mu>m filter membrane for 2 to 3 times, and then is subjected to sterile filling. The caffeine content of the black tea beverage is reduced by 42.3mg / l, blood pressure reducing rate is increased by 16.7%, deposition rate is reduced by 3.95%, and total clump count is reduced by 369cfu / ml.

Description

technical field [0001] The invention belongs to the technical field of tea beverage processing, and in particular relates to a preparation method of polysaccharide-rich black tea beverage. Background technique [0002] Black tea is a chemical reaction centered on the enzymatic oxidation of tea polyphenols, in which tea polyphenols are greatly reduced to produce theaflavins and thearubigins, which have the characteristics of strong aroma, black tea, red soup, and red leaves, and are the second largest in my country. Keemun black tea is the most famous, and also includes Huohong, Dianhong, Yuehong and other black tea varieties. Black tea is a kind of fully fermented tea, which has the effects of gastrointestinal digestion, promoting appetite, eliminating edema, warming and protecting the stomach, strengthening the heart, and has the effect of regulating myocardial infarction and blood sugar. Mushrooms are rich in polysaccharides, which have wide sources and strong planting ada...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims at the existing problems: the black tea is made into a beverage through an industrialized extraction method, which is convenient and quick to drink, and has a high rate of absorption and utilization of nutrients. The nature of heavy and beverages is unstable, and additives such as sweeteners and antioxidants need to be added to suppress them, which has potential food safety risks to human health; and black tea beverages are prone to discoloration and turbidity during long-term storage, resulting in a serious decline in the quality of black tea beverages; Although black tea has high health-care functions, it has lower health-care functions than polysaccharides. The direct method of polysaccharides will lead to insufficient fusion of ingredients and flocs in beverages.