Analysis of a reported organosulfur carcinogenesis inhibitor: 1,2-dithiole-3-thione in cabbage

JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY(1991)

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Abstract
The putative occurrence of a reported naturally occurring chemical carcinogenesis inhibitor, 1,2-dithiole-3-thione, in cabbage (Brassica oleracea L.) was investigated by utilizing both reversed-phase high-performance liquid chromatography and capillary gas chromatography-mass spectrometry. Liquid-solid preparatory chromatography, charcoal adsorption, and mercuric chloride precipitation were all used to isolate the compound. Although a number of previously identified organosulfur compounds were isolated in various cabbage extracts, this study did not reveal 1,2-dithiole-3-thione naturally occurring in cabbage. In addition, two novel organosulfur compounds have been preliminarily identified in cabbage, but these compounds, as well as previously reported dithiolethiones, may have originated by thermal sulfurization reactions during the isolation procedures.
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organosulfur carcinogenesis inhibitor
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