BEVERAGE FROM ROSEBAY LEAVES WITH INCREASED CONTENT OF POTASSIUM, MAGNESIUM, ALANINE, VITAMIN B6 AND GAMMA-AMINOBUTYRIC ACID Russian patent published in 2020 - IPC A23F3/34 A23F3/00 

FIELD: food industry.

SUBSTANCE: invention relates to food industry, in particular, to tea production. Method of producing tea beverage from rosebay leaves includes the following steps: frosting rosebay leaves at a temperature of -45 °C to 0 °C or cooling to temperature below dew point, their heating up to 25–35 °C and milling until homogeneous plant mass is obtained, treatment of the obtained mass with aqueous 0.5–1 % solution of vitamin B6 and aqueous 20–25 % solution of a mixture of potassium and magnesium salts of glutamic acid, fermentation at 35–45°C for 4–16 hours and drying at temperature 55–65 °C to final moisture content of not more than 14 %, wherein the plant mass is treated with an aqueous solution of vitamin B6 based on 0.10–0.25 g of vitamin B6 per 1 kg of said mass and an aqueous solution of a mixture of potassium and magnesium salts of glutamic acid in amount of 10.8–12.6 g of mixture thereof per 1 kg of weight, wherein to prepare a solution of glutamic acid salts, potassium and magnesium salts are mixed in ratio of 10:1–1:10.

EFFECT: invention allows to produce a beverage with high biological value, as well as increase yield of GABA during fermentation.

1 cl, 1 tbl, 17 ex