Cruciferous vegetables are best when prepared by chopping, macerating, fermenting, or massaging in an acid such as lemon. These methods release the enzyme myrosinase, which is responsible for anticancer action in the body. Steaming is a light cooking method that is also effective at preserving nutrients in crucifers.
Cruciferous vegetables can be stored from three days (e.g. brussels sprouts )up to two weeks (e.g. red cabbage) in a perforated bag in the refrigerator. For long-term storage they should be blanched and kept in the freezer.
The cruciferous family includes arugula, bok choy, broccoli, brown mustard seed, cabbage, cauliflower, Chinese cabbage, collard greens, daikon radish, horseradish, kale, kohlrabi, land cress, mustard greens, red cabbage, radish, rutabaga, shepherds’ purse, turnip, watercress, and yellow mustard seeds.