The application discloses medical
sulforaphane and a preparation method thereof, and belongs to the technical field of food. The preparation method of the medical
sulforaphane comprises the following steps: step 1, pre-treatment of
broccoli sprouts; step 2, high-temperature and low-temperature water soaking; step 3, wall breaking; step 4,
filtration; step 5, cooling; step 6, filling; and step 7, ultra-fast cooling. The application further discloses medical
sulforaphane prepared by the preparation method. The application can produce sulforaphane with high content and meeting the content requirement of
medical research, and has high
medical research value and wide market prospect.