〔Beijing Vegetable Research Center,Beijing Academy of Agriculture and Forestry Science,Key Laboratory of Biology and Genetic Improvement of Horticultural Crops(North China),Ministry of Agriculture,Beijing Key Laboratory of Vegetable Germplasm Improvement,Beijing 100097,China〕
Glucosinolate components and contents in 15 cauliflower(Brassica oleracea L. var. botrytis L.)varieties from 3 types,were tested by HPLC method.The result indicated that 9 different components of glucosinolate were detected,including 5 aliphatic glucosinolates(Glucoiberin,Progoitrin,Sinigrin,
Glucoraphanin,Gluconapin),and 4 indolic glucosinolates(4-Hydroxyglucobrassicin,Glucobrassicin,4-Methoxyglucobrassicin,Neoglucobrassicin).The indolic glucosinolates contents of each variety were higher than that of aliphatic glucosinolate.Among them,the major glucosinolate contents of cauliflower Neoglucobrassicin and Glucobrassicin took 42.61% and 35.02% of the total glucosinolates,respectively.There
were big differences in total glucosinolates content of different cauliflower varieties.The variation scope was between 0.332 3-4.872 8 μmol·g-1(FW).The total glucosinolates content of purple-head cauliflower was the highest,loosen-head cauliflower took the second place,and compact-head cauliflower was the least.