Table 1 Metabolites identified in the non-polar and polar fractions after multi-fractional extractions

Non polar fraction

Alkane

C₂₇H₅₆, C₂₉H₆₀, C₃₀H₆₂, C₃₁H₆₄, C₃₃H₆₈, C₂₅H₅₂, C₃₂H₆₆

Free fatty acid

C12:0, C14:0, C15:0, C16:0, C17:0, C18:2 cis9,12 C18:3, C18:0, C20:0, C22:0, C24:0, C26:0

Fatty acid methyl esther

C16:0, C18:3, C18:2 trans 9,12, C18:0, C20:0, C22:0, C24:0,

Fatty acid alcohol

Tetracosanol, 1-hexadecanol, 1-octadecanol

Glycerolipid

Glycero-2-C16:0, glycero-1-C18:0, glycero-1-C16:0

Sterol

campesterol, stigmasterol, β-sitosterol

Triterpenoid

Squalene

Tocopherol

α-Tocopherol

Polar fraction

Amino acid

4-Hydroxyproline, arginine, aspartate, β-alanine, GABA, glutamate, glutamine, glycine, histidine, isoleucine, leucine, methionine, ornithine, phenylalanine, pyroglutamate, threonine, tyrosine, valine, slanine, asparagine, lysine, proline, serine, tryptophan

Organic acid

Dehydroascorbate, fumarate, malate, quinate, succinate, threonate, 2-oxoglutarate, citrate,

Sugar

Galactinol, glucose, raffinose, ribitol, sucrose, trehalose, fructose,

Sugar acid

Glycerate

Sugar alcohol

Erytritol, myo-inositol

Other

Putrescine, tyramine, urea, benzoate, guanidine