Xylitol jujube acetic acid fermented beverage

Jujube has the functions of sedation, sleep-aiding, antihypertensive, anti-allergic, protecting liver, enhancing muscle strength, anti-oxidation, anti-tumor and so on. Acetic acid beverage can soften blood vessels, lower blood pressure, prevent arteriosclerosis, increase appetite, promote digestion and so on. Xylitol is a promising functional additive.

Raw material formula: jujube 20kg, liquid xylitol 2kg, honey 2kg, yeast starter 10kg, acetic acid bacteria starter 15kg.

The main points of operation explain the preparation of jujube juice:

● raw material pretreatment: select dried jujube to remove impurities and wash, then add 2 times the weight of purified water to soak in 40 ℃ for 3 hours, enucleate and beat together with the soaking solution to break up to more than 60 mesh.

● extraction: the jujube pulp was extracted by adding 0.05% Pectinase and 0.02% cellulase together with 3 times the weight of purified water, then steam was used to heat the jujube pulp to 40 ℃-45 ℃, the extraction process lasted about 3 hours, and the jujube juice was obtained by filtering with a filter cloth of more than 100 mesh.

● clarification treatment: add 0.08% chitin in the juice to make pectin and other macromolecular substances flocculate quickly, and the clarified jujube juice can be obtained by static, precipitation and centrifugation.

Alcohol fermentation: the jujube juice with adjusted sugar content was heated to 90 ℃ in a plate heat exchanger for 15 minutes, then cooled to 28 ℃-29 ℃ and added to 10% yeast medium for fermentation. Alcohol fermentation is carried out in a closed tank, the temperature is kept at 28 ℃-30 ℃, the filling quantity is 80%, the fermentation time is about 17 hours, the alcohol content of the mature fermentation broth is 5%, the acidity is about 0.6%, and the residual sugar is 0.5% Mel 0.8%.

Acetic acid fermentation: in this fermentation stage, 15% acetic acid bacteria were inoculated into the alcohol fermentation broth and fermented for 72 hours at the temperature of 35 ℃-38 ℃. The end point of acetic acid fermentation was that the acidity of the fermentation liquid no longer increased.

Blending: according to the formula proportion, the liquid xylitol and honey are fully dissolved in pure water, filtered by a double filter, and then pumped into the blending tank together with the fermentation liquid and the jujube juice with 2 times the weight of the original liquid, and stirred and mixed with the mixer. Filling and sterilization: after the bottle is sealed, the bottle is sterilized by heating in the water bath, then cooled, and the finished product is obtained after scrubbing the bottle and labeling.

Product features and functional characteristics jujube acetic acid fermentation health drink is a yellow clear transparent liquid, sweet and sour palatable, soft taste, with jujube and xylitol dual nutrition and health value.