Tea extract production method and tea extract. RU patent 2432088.

FIELD: food industry.

SUBSTANCE: method envisages production of cold infusion leaf of green tea leaf which is macerated and treated with tannase during a time period sufficient for leaf fermentation and generation of gallic acid and theaflavin. Fermentation is performed in presence of an oxygen-containing substrate in an amount sufficient for endogenous peroxidases activation; the produced fermented leaf is additionally dried to produce cold infusion tea leaf. Production of the said cold infusion tea leaf mixture with tea leaf not treated with tannase and the oxygen-containing substrate, tea leaves mixture extraction with water to produce a percolate containing dry tea substances, heating the produced percolate containing dry tea substances for production of a tea extract that may be used for production of a tea beverage ready for consumption and containing from 0.001 to 6 wt % of dry tea substances by way of dilution with water. This allows to produce storage stabile tea beverages ready for consumption. The tea beverages have excellent colour and taste characteristics and are produced of tea extract produced of cold infusion and standard tea leaf.

EFFECT: tea beverages preserve excellent characteristics with no preserving agents and caramel added to.

29 cl, 5 ex

IPC classes for russian patent Tea extract production method and tea extract. RU patent 2432088. (RU 2432088):

A23F3/16 - Tea extraction; Tea extracts; Treating tea extract; Making instant tea

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