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Representative HPLC chromatograms of all analyzed biogenic amines at λ = 254 nm. (A) Chromatogram of the standard mixture. (B) Representative chromatogram of one of the samples (ethanol extract). Try, tryptamine; Put, putrescine; Cad, cadaverine; His, histamine; IS (internal standard); Tyr, tyramine; Spd, spermidine; Spm, spermine.
