Studies on the Volatile Components of Wasabia japonica, Brassica juncea and Cocholearia armoracia by Gas Chromatography-Mass Spectrometry. I. Determination of Low Mass Volatile Components

Low mass volatile components in the hydrolysate of Wasabia japonica, Brassica juncea, and Cocholearia armoracia were determined by gas chromatography-mass spectrometry. In the hydrolysate of Wasabia japonica, the following 10 volatile components were detected : Methyl, isopropyl, allyl, sec-butyl, 3-butenyl, 4-pentenyl, 5-hexenyl, hexyl, 6-heptenyl, and β-phenylethyl isothiocyanates. Volatile components of Brassica juncea comprised 11 kinds as follows : Methyl, isopropyl, allyl, sec-butyl, butyl, 3-butenyl, 4-pentenyl, phenyl, 3-methylthiopropyl, benzyl, and β-phenylethyl isothiocyanates. Volatile components of Cocholearia armoracia had 8 kinds as follows : Isopropyl, allyl, 3-butenyl, 4-pentenyl, phenyl, 3-methylthiopropyl, benzyl, and β-phenylethyl isothiocyanates. From these results, it was decided that the volatile components of above three materials had different isothiocyanates.