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    Xenobiotica. 1987 Nov;17(11):1363-71.

    The chemical nature of the urinary odour produced by man after asparagus ingestion.

    Source

    Department of Biochemistry, University of Birmingham, UK.

    Abstract

    1. The pungent urinary odour produced by certain individuals within a few hours of eating asparagus has been shown to be due to a combination of up to six sulphur-containing alkyl compounds identified as methanethiol, dimethyl sulphide, dimethyl disulphide, bis-(methylthio)methane, dimethyl sulphoxide and dimethyl sulphone. 2. The possible roles of S-methylmethionine and asparagusic acid as precursors of these odorous substances are discussed in relation to the known chemistry of the vegetable.

    PMID:
    3433805
    [PubMed - indexed for MEDLINE]

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