Preparation method of anoectochilus formosanus plant protein lactic acid beverage

The invention provides a preparation method of an anoectochilus formosanus plant protein lactic acid beverage. The method comprises the steps of anoectochilus formosanus pre-treatment, soybean selection, soybean soaking, bean milk preparation, soymilk preparation and fermentation culture. The method has the following advantages that (1) lactobacilli can utilize oligosaccharide which cannot be directly absorbed by human bodies for fermentation to generate micromolecular substances capable of being easily absorbed by the human bodies, the utilization rate of the human bodies on carbohydrates in the soymilk is improved, and the nutrition value is improved; (2) the liver protection function is given to the beverage through the anoectochilus formosanus in the plant protein lactic acid beverage; (3) the free isoflavone in the fermented anoectochilus formosanus plant protein lactic acid beverage is increased, and the senium delaying effect is realized; and (4) the anoectochilus formosanus plant protein lactic acid beverage has the blood fat reducing and antihypertensive effects, and also has the effects of protecting the blood vessels from endothelial injury and improving the blood vessel endothelial function. The plant protein lactic acid beverage prepared by the method provided by the invention belongs to a beverage with good mouth feeling and good health care values.