Blueberry coffee and preparation method thereof

Abstract

The invention belongs to the field of nutritive and healthcare foods and particularly relates to a blueberry coffee and a preparation method thereof. The blueberry coffee is prepared from wild blueberries and coffee beans specially produced in Great Khingan by the process steps of vacuum freeze drying, superfine grinding, total blending, once pelletizing and the like. The preparation method of the blueberry coffee comprises the following steps of: selecting blueberries and removing impurities; carrying out prefreezing at a temperature being lower than -15 DEG C; drying under a condition that the temperature is from -15 DEG C to -40 DEG C and vacuum degree is 1.5-15 P; taking 50-70 parts of coffee beans without peel or flesh, wherein the weight of to the coffee beans is 2-3 times weight of the blueberries; mixing the blueberries and the coffee beans by utilizing a trough type mixing machine, carrying out superfine micro-grinding on the mixture until the particle diameter is 10-25 microns, and carrying out pelletizing once, so as to obtain the blueberry-flavor coffee having a high nutritive value.

Description

technical field [0001] The invention belongs to the field of nutrition and health food, and in particular uses Daxing'an Mountains specialty wild blueberries and coffee beans as raw materials, and prepares blueberry coffee and a preparation method thereof through processes such as vacuum freeze-drying, ultrafine pulverization, total mixing, and one-step granulation. [0002] The blueberries used in this product come from the primeval forests of the Greater and Lesser Khingan Mountains. It is located between 50°-53° north latitude. Background technique [0003] Blueberry (Blueberry), means the meaning of blue berry. It is a low shrub, wild with short feet, small particles, but high in anthocyanin content; it is mainly produced in the Daxinganling and Xiaoxinganling forest areas in my country, especially the central Daxinganling, and they are all pure wild. Blueberry fruit is rich in nutrients. It not only has good nutritional and health effects, but also has the functions o...

AI Technical Summary

Problems solved by technology

Caffeine, etc., can promote metabolism, eliminate fatigue, prevent ultraviolet rays, etc. It is a kind of leisure food that the public likes very much. However, the coffee on the market has a single taste, single nutrition, and single effect. Therefore, it is necessary to develop a coffee with a blueberry taste. A new type of coffee drink to meet the needs of human beings in pursuit of health