Fermented tea beverage and preparation method thereof

Abstract

The invention discloses a fermented tea beverage and a preparation method thereof. The fermented tea beverage is characterized by comprising the following components in percentage: 20-80% of tea extract, 0.01-0.5% of sodium D-isoascorbate or vitamin C, 0.01-0.5% of citric acid, 0-30% of syrup or substituted sugar and 0-79.98% of purified water; and fresh tea leaves are extracted to obtain the tea extract. The preparation method is characterized by comprising the following steps: uniformly stirring the components in proportion, and sterilizing at the temperature of 85-100 DEG C for 1-10 minutes; after the sterilization, cooling a tea slurry to 20-45 DEG C; inoculating lactic acid bacteria to the sterilized and cooled tea slurry based on a ratio of 10<3>-10<9> cfu / ml; and fermenting at 25-45 DEG C for 6-48 hours, wherein the fermentation ends when the pH value is 3.5-5.0. The invention has the following advantages: (1) natural gentle acidity can be produced to effectively remove the bitter of the tea juice; (2) by fermenting with the lactic acid bacteria, the content of the amino acid in the tea slurry can be increased by over 10%, flavor substances can be increased by over 30%, and the flavor and mouthfeel of the product are effectively improved; (3) nutrient components such as vitamin and the like in the tea leaves are fully maintained; and (4) the shelf life of food is prolonged, and spoilage is prevented.

Description

technical field

[0001] The invention belongs to the technical field of fruit and vegetable beverage production. technical background

[0002] At present, the main products of tea beverages at home and abroad are black tea beverages, green tea beverages, oolong tea, lemon tea beverages, etc. Its production process is cleaning, extraction, blending, canning and sterilization. The sour taste in its products is mainly produced by the blended citric acid or lactic acid, and the product has an unpleasant sour taste; the fragrance in its products is mainly produced by the blended essence, which leads to the incongruity between the first fragrance and the original taste of the product.

[0003] Along with improving day by day of people's living standard, more and more people begin to pay attention to nutrition and health food, and the novel fermented tea drink product that is not only delicious but also has good nutrition and health function is very popular among people. Contents...