Reconstructed gas chromatography-mass spectrometry (GC-MS) total ion chromatogram (TIC) of the trimethylsilylated total lipid extract of (a) Kha, mummy wrappings (from base of feet) and (b) Merit, mummy wrappings (from base of feet).

<p>Peak identities (‘n’ indicates carbon chain length; where shown, i indicates degree of unsaturation): filled triangles, C_n:i indicates fatty acids; filled squares, C_n indicates α,ω-dicarboxylic acids. C_3:0 2,3-di-OH indicates 2,3-dihydroxypropanoic acid (glyceric acid); C_4:0 3,4-di-OH indicates 3,4-dihydroxybutanoic acid (2-deoxytetronic acid); C_16:0 9,10-di-OH (t) indicates 9,10-dihydroxyhexadecanoic acid (threo isomer); C_18:1 10-oxo indicates a 10-oxo-octadecenoic acid; C_18:0 10-oxo indicates 10-oxo-octadecanoic acid; C_18:0 9,10-di-OH (t+e) indicates 9,10-dihydroxyoctadecanoic acid (threo and erythro isomers); C_18:0 11,12-di-OH indicates 11,12-dihydroxyoctadecanoic acid; C_18:2 DAGs indicate octadecadienoyl diglycerides. The letters ms represent monosaccharides and the letters ds represent disaccharides; DHA represents dehydroabietic acid.