Abstract
Volatile constituents of Raphanus sativus L. var. niger seeds were analyzed by GC, GC/MS and retention indices. Ten isothiocyanates, seven aliphatic hydrocarbons and some other volatile substances were characterized. The main isothiocyanates were hexyl isothiocyanate (18.4%), 4-methylthiobutyl isothiocyanate (17%), 4-methylpentyl isothiocyanate (8.4%), 4-methylthio-(3E)-butenyl isothiocyanate (5.2%), 4-methylthio-(3Z)-butenyl isothiocyanate (4.7%) and isoamyl isothiocyanate (2.4%).