Theanine composite base material

The invention relates to the cross technical field of biological medicine and food processing, in particular to a functional composite base material for food. The food composite base material comprises the following components in parts by weight: 100-200 parts of theanine, 5-15 parts of tea polyphenol and 1-5 parts of mogroside. Compared with a single component of theanine, the tea polyphenol and theanine added in the formula have a synergistic effect, the effects of relieving fatigue, concentrating spirit and improving attention of theanine can be remarkably improved, mogroside serving as a sweetening agent can improve the taste and flavor of the formula, and no influence is caused on blood sugar. The components of the formula are all natural green plant products, are safe green food resources which are widely accepted internationally, have very strong anti-oxidation effects and can enhance the fresh-keeping performance and prolong the shelf life of the products, and secondly, compared with complex formulas