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Definition of acetogenic lipids: acetogenic lipids are lipids built from acetate (2-carbon) subunits with hydrocarbon alkenones (alkenones are also known as ketones, and are any compound with a C-O bond). We think of different types of acetogenic lipids in their use as biomarkers:

>>Biomarker classification

>>>Lipids

>>>>Acetogenic lipids

>>>>Isoprenoids

>>>>Acyclic and cyclic isoprenoids

>>>>Polycyclic isoprenoids

>>>>Hopanoids

>>>>Steroids

>>>>Carotenoids

>>>>Squalene

>>>Kerogen

>>>Diagenesis and catagenesis

>>Biomarker as Source Indicator

>>>Steranes, hopanes etc

>>>Hydrocarbons

>>>Environmental Indicators

>>>Indicators of Euxinia

>>Experimental methods to extract biomarkers

>>>Source rock

>>>Extraction

>>>Fractionation

>>>GCMS