Purple sweet potato and lactic acid bacterium compound beverage and method for preparing same

Abstract

The invention discloses purple sweet potato and lactic acid bacterium compound beverage and a method for preparing the same. The purple sweet potato and lactic acid bacterium compound beverage is made of purple sweet potatoes, black bean and black garlic which are fermented by the aid of lactic acid bacteria. The particular method includes respectively preparing purple sweet potato pulp, black bean milk and black garlic pulp; mixing the purple sweet potato pulp, the black bean milk and the black garlic pulp with one another; adding fresh milk and lactose into the purple sweet potato pulp, the black bean milk and the black garlic pulp, compounding the fresh milk, the lactose, the purple sweet potato pulp, the black bean milk and the black garlic pulp, homogenizing the fresh milk, the lactose, the purple sweet potato pulp, the black bean milk and the black garlic pulp at the high pressures to obtain mixed liquor, sterilizing the mixed liquor and cooling the mixed liquor; inoculating acclimated lactic acid bacterium strains into the cooled mixed liquor and fermenting the mixed liquor; blending and homogenizing the mixed liquor after fermentation is completed, filling containers with the mixed liquor under sterile conditions and storing the mixed liquor under refrigerated conditions. The purple sweet potato and lactic acid bacterium compound beverage and the method have the advantages that purple sweet potato, black bean and black garlic compounded systems are used as main fermentation substrates, the compound lactic acid bacteria which are acclimated by a four-step process are used as fermenting agents, fermentation is carried out by the aid of specific fermentation base materials, accordingly, the antioxidant purple sweet potato and lactic acid bacterium compound beverage with abundant anthocyanin and effects of improving intestinal flora balance and the like can be prepared and has unique aroma and high nutritional value, processes for preparing the purple sweet potato and lactic acid bacterium compound beverage are simple, and the purple sweet potato and lactic acid bacterium compound beverage and the method are applicable to industrial production.

Description

technical field [0001] The invention relates to a lactic acid bacteria drink, in particular to a purple potato lactic acid bacteria compound drink and a preparation method thereof, belonging to the technical field of food processing. Background technique [0002] Purple potato is also called black potato. In addition to the nutrients of ordinary sweet potato, it is also rich in selenium, iron and anthocyanins. Among them, selenium is known as the "anti-cancer king", which is easily absorbed by the human body and can enhance the body's immunity; iron is an essential element for the human body to resist fatigue, anti-aging, and nourish blood; anthocyanins are natural and powerful free radical scavengers, which can Inhibiting the production of carcinogens and reducing gene mutations can also reduce serum transaminases and prevent cardiovascular diseases such as hypertension. [0003] Black beans are rich in protein, fat, trace elements and crude fiber, among which the protein ...

AI Technical Summary

Problems solved by technology

At present, there is no lactic acid bacteria fermented functional beverage based on purple sweet potato, black soybean and black garlic on the market