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    Macrocyclic alkanes in crude oils from the algaenan of Botryococcus braunii

    Access Status
    Fulltext not available
    Authors
    Audino, Michiele
    Grice, Kliti
    Alexander, Robert
    Kagi, Robert
    Date
    2002
    Type
    Journal Article
    
    Metadata
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    Citation
    Audino, Michiele and Grice, Kliti and Alexander, Robert and Kagi, Robert. 2002. Macrocyclic alkanes in crude oils from the algaenan of Botryococcus braunii. Organic Geochemistry. 33 (8): pp. 979-984.
    Source Title
    Organic Geochemistry
    DOI
    10.1016/S0146-6380(02)00061-X
    ISSN
    01466380
    Faculty
    Department of Applied Chemistry
    School of Science and Computing
    Faculty of Science and Engineering
    Remarks

    The link to the journal’s home page is: "http://www.elsevier.com/wps/find/journaldescription.cws_home/622273/description#description" Copyright © 2002 Elsevier B.V. All rights reserved

    URI
    http://hdl.handle.net/20.500.11937/27096
    Collection
    • Curtin Research Publications
    Abstract

    New classes of biomarkers, macrocyclic alkanes, have been previously identified in high grade oil shales (torbanites, Late Carboniferous-Late Permian) containing remains of the freshwater alga Botryococcus braunii (B. braunii). In this study we report the occurrence of these compounds in two Indonesian crude oils (Minas and Duri, Tertiary) utilising metastable reaction monitoring GC?MS experiments. Based on 13C data and the distributions of the macrocyclic alkanes we suggest that the macrocyclic alkanes are likely formed by an olefin metathesis reaction of a structurallyspecificpolyunsaturated precursor i.e. the algaenan of B. braunii. The macrocyclic alkanes appear to be novel markers of B. braunii and add to the catalogue of the characteristic hydrocarbons derived from this alga. More importantly, these components could be original markers specific to the highly resistant algaenan of B. braunii in sediments and crude oils, unlike n-alkanes which can have multiple origins.

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