HPLC analysis revealed the presence of 16 different types of glucosinolates in three different edible
organs of four different subspecies of B. oleracea. Cabbage leaves contained 12 glucosinolates; kale leaves contained 10; kohlrabi stems contained 11 and the cauliflower florets contained 14. Gluconapin; glucoalyssin; gluconapoleiferin and 4-hydroxy glucobrassicin were identified only the florets of cauliflower (Yi et al. 2015)