Method for preparing dendrobium officinale plant protein lactic acid beverage

The invention provides a method for preparing a dendrobium officinale plant protein lactic acid beverage, comprising the steps of pretreatment, preparation of dendrobium officinale juice, preparation of soya-bean milk, preparation of soymilk, fermentation cultivation and the like. The method for preparing the dendrobium officinale plant protein lactic acid beverage has the following advantages that (1) the dendrobium officinale plant protein lactic acid beverage has the effects of nourishing yin for health care, nourishing the stomach to improve the production of body fluid, enabling the bodyto be relaxed and prolonging the lifetime; (2) the soybean contains multiple bioactive components playing functional roles in the human body, such as eight essential amino acids for the human body, soybean oligosaccharides, isoflavone, saponin, dietary fiber, phospholipid and soybean peptide; and (3) the lactic acid bacteria in the beverage can improve the functions of human gastrointestinal tracts and keep the intestinal tracts in health. Therefore, the plant protein lactic acid beverage prepared by the method not only has good taste, but also has health care value.