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Lipids of Geochemical Interest in Microalgae

  • John K. Volkman
Living reference work entry
Part of the Handbook of Hydrocarbon and Lipid Microbiology book series (HHLM)

Abstract

Microalgae have a long geological history and a diversity of biochemical constituents which vary systematically between algal classes. This review provides an update on those lipid constituents that have proven useful in organic geochemical studies as biomarkers for assigning sources of organic matter in seawater and sediments. These functionalized biomarkers are degraded in sediments by well-established pathways ultimately yielding hydrocarbons which can also be used to assign organic matter sources in ancient sediments and crude oils. Compound classes covered here include hydrocarbons, fatty acids, hydroxy fatty acids, fatty alcohols, alkyl diols, alkenones, alkenoates, and sterols. Information on biopolymeric substances called algaenans found in just a few algal classes is also provided.

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© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.CSIRO Oceans and AtmosphereHobartAustralia

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