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    Further spectral and chromatographic studies of ambergris

    264058.pdf (1.054Mb)
    Access Status
    Open access
    Authors
    Rowland, S.
    Sutton, P.
    Belt, S.
    Fitzsimmons-Thoss, V.
    Scarlett, Alan
    Date
    2018
    Type
    Journal Article
    
    Metadata
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    Citation
    Rowland, S. and Sutton, P. and Belt, S. and Fitzsimmons-Thoss, V. and Scarlett, A. 2018. Further spectral and chromatographic studies of ambergris. Natural Product Research. 32 (1): pp. 2603-2609.
    Source Title
    Natural Product Research
    DOI
    10.1080/14786419.2018.1428599
    ISSN
    1478-6419
    School
    School of Earth and Planetary Sciences (EPS)
    URI
    http://hdl.handle.net/20.500.11937/65884
    Collection
    • Curtin Research Publications
    Abstract

    Jetsam ambergris, found washed ashore on beaches, is an environmentally modified form of a natural product of Sperm whales which sometimes develops a pleasant odour. Odorous samples have proved valuable in perfumery. Identification of jetsam ambergris by analysis of organic-soluble extracts by Fourier transform infra-red spectroscopy (FTIR) and of derivatised samples by gas chromatography-mass spectrometry (GC-MS) has already been shown. Here, we describe a different method, in which characteristic alkenic protons and carbon atoms of the major constituent ambrein, were identified in whole extracts using nuclear magnetic resonance spectroscopy (NMR). The advantages of employing NMR spectroscopy included rapidity, reduced losses of volatiles compared to GC-MS and detection of non-GC amenable constituents. However, the identities and quantities of co-occurring individual components (e.g. steroids) could not easily be assigned in the unfractionated extracts by NMR spectroscopy, whereas they were by GC-MS, so an approach combining FTIR, GC-MS and NMR spectroscopic methods is advocated.

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