Identification and quantitative determination of glucosinolates in seeds and edible parts of Korean Chinese cabbage

► Nine individual GSLs were identified and quantified by LC-ESI-MS and LC-UV. ► 'Norangbom' was the richest source of aliphatic and indolyl GSLs. ► Gluconapin made a major contribution to GSLs of the seeds of all four cultivars. ► Indolyl GSLs, such as 4-methoxyglucobrassicin, were less important in the edible parts. ► Metabolome among the four cultivar seed or edible parts was clearly separated by PCA.