The invention discloses
wheat germ drink, which mainly comprises micromolecule
peptide prepared by enzymolysis of proteins of wheat germs,
vitamin E and octacosanol. The invention further discloses a preparation method of the
wheat germ drink. The method comprises the following steps: 1) purifying the proteins of the wheat germs, and performing two-stage enzymolysis for preparing micromolecule
peptide solution; 2) adopting supercritical CO2 extraction and molecular
distillation technologies for extracting and preparing the
vitamin E from the wheat germs; 3) adopting the supercritical CO2 extraction and multiple
crystallization technologies for extracting and preparing the octacosanol; and 4) adding Tween 80, and preparing the
vitamin E and the octacosanol into
emulsion. The main nutritional ingredients of the wheat germs, namely the
vitamin E, the octacosanol and the proteins of the wheat germs, are separated and purified, the enzymolysis technology is used for preparing the micromolecule
peptide, the
vitamin E and the octacosanol are prepared into the
emulsion, the three nutritional ingredients are re-combined according to a certain proportion, and auxiliary materials are further matched, thereby preparing the
wheat germ drink with anti-fatigue, anti-oxidation, anti-hypertension and other functions.