Broccoli is also called cauliflower. It is the mutation of brassica oleracea, which belongs to brassica, cruciferae. The edible part is the green tender flower stalk and bud. It contains lots of nourishment, such as protein, sugar, fat, vitamin and carotene etc. It is honored as the “crown of the vegetables”.
Sulforaphane is an organosulfur compound. It is obtained from cruciferous vegetables such as broccoli, Brussels sprouts or cabbages. The enzyme myrosinase transforms glucoraphanin, a glucosinolate, into sulforaphane upon damage to the plant (such as from chewing). Young sprouts of broccoli and cauliflower are particularly rich in glucoraphanin.