Within the master thesis the influence of synthetic and biogenic amines on the formation of primary and secondary products of lipid oxidation in plant oils and model lipid systems was evaluated. Linseed oil was used, as also the mixture of glyceryl trioctanoate and methyl linolenate. Hexylamine, trihexylamine, α-tocopherol, γ-tocopherol, spermine and spermidine were added into oil and mixture of synthetic lipids in order to evaluate their influence on oxidation. Samples were incubated at 60 oC and after chosen time intervals peroxide values, conjugated dienes and trienes were determined. Stability of carotenoids and tocopheroles was also assessed. Hexylamine and trihexylamine had an antioxidant effect, as oxidation was slower than in control samples. Addition of α-tocopherol and γ-tocopherol into the linseed oil resulted in prooxidant effect. Biogenic amines spermine and spermidine had the strongest antioxidative effect compared to other tested antioxidants. These amines effectively inhibited the formation of primary and secondary products of oxidation and also slowed down the degradation of carotenoids. Spermine and spermidine stabilized tocopherols in oil and model systems. The effect of spermine and spermidine in the range of 0.1 to 1 mmol/kg was concentration dependent. Spermine, which has a larger number of amino groups, has higher antioxidant effect than spermidine.
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