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Gas chromatography‐mass spectrometry of nitriles, isothiocyanates and oxazolidinethiones derived from cruciferous glucosinolates
Author(s) -
Spencer Gayland F.,
Daxenbichler Melvin E.
Publication year - 1980
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.2740310406
Subject(s) - chemistry , glucosinolate , myrosinase , hydrolysis , mass spectrometry , gas chromatography , aryl , alkyl , organic chemistry , gas chromatography–mass spectrometry , moiety , chromatography , brassica , botany , biology
Abstract Hydrolysis/autolysis of the glucosinolates found in wild and cultivated cruciferous plants can yield a variety of nitrogenous compounds for the alkyl or aryl moiety. These products include nitriles, isothiocyanates and oxazolidinethiones, all of which may present potential hazards in foods and feeds. More than 70 glucosinolates are known, and almost all the hydrolysis products are amenable to analysis by gas chromatography. The reaction can proceed in different ways, depending upon the conditions of hydrolysis or treatment of the plant during harvest or storage, and confirmation of the identifications made by retention data is sometimes needed. Gas chromatography‐mass spectrometry can usually provide this additional structural information. Spectra of alkyl or aryl nitriles and isothiocyanates that contain other functional groups (hydroxyl, episulphide, methylthio, sulphinyl, sulphonyl) and oxazolidinethiones are presented and discussed.