S5 Fig -

2. Lipid yield and fatty acid ratios in the samples studied in organic residue analysis. 3. Single compound stable carbon isotopes in lipid extracts. a) δ13C18:0 values plotted against δ13C16:0 values. The 95% confidence ellipses are calculated using authentic reference fat values published in the literature [3, 11–24]. b) Δ13C values plotted against their δ13C16:0 value. 4. Chromatograms of lipid extracts from pot PdM 111. a) after DCM/MeOH extraction; b) after acid transmethylation (SIM mode analysis). Cxx:x: fatty acids; Cxx:xbr: branched fatty acids; TAGs: triacylglycerols; IS: internal standard. (ZIP)