Determining sulforaphane contents in edible parts of nine cruciferous vegetables
Sulforaphane is a material with the strongest anti-cancer activity among vegetables,mainly distributed in cruciferae vegetables.In this experiment,the sulforaphane contents in edible parts(flowers,stems and leaves) of nine cruciferous vegetables were prepared with ambient drying at 50℃,70℃ and 90℃,and then were determined by HPLC(high performance liquid chromatography).The result showed that sulforaphane content in Brassica is more than that in Raphanus among the nine species cruciferous vegetables;the sulforaphane content in Brassica broccoli is the highest with 480 μg.g-1,but that in cauliflower is the lowest with 35.2 μg.g-1;the sulforaphane content in Raphanus carrot is the highest with 80.9 μg.g-1,but that in white turnip is the lowest with 19.8 μg.g-1;as for drying temperature,90℃is the best.