Wheat seedling extraction and its preparing method and use

The present invention discloses a method for preparing Barley extract, the steps are: A, with barley grass as raw material, excised leaves, wash and drain; B, at 3-5 ℃ when the wheat leaf mechanically squeezed to remove after the large particles have a green juice; C, the green juice subjected to vacuum freeze-drying or spray or film, the rapid increase juice temperature inactivate the enzyme, and collecting oil when dry; D, pressing the solids after extraction or distillation, collect oil or oil; E, the entire process must be completed within 12 hours. The method of the present invention is easy and simple process, the green powder and essential oils can be added to an appropriate amount of food starch into various oral dosage forms, fragrance, taste sweet, can be widely used in health foods.