Transformations and antioxidative activities of lignans and stilbenes at high temperatures

Patrik Runeberg, Dmitry Ryabukhin, Lucas Lagerquist, Jani Rahkila, Patrik Eklund*

*Korresponderande författare för detta arbete

Forskningsoutput: TidskriftsbidragArtikelVetenskapligPeer review

8 Citeringar (Scopus)
83 Nedladdningar (Pure)

Sammanfattning

Thermal transformations of polyphenols from the lignan and stilbene families were investigated at temperatures ranging from 200 °C to 250 °C, in polyethylene glycol (PEG-400), dimethylformamide (DMF) and in sunflower oil (SO). The polyphenols showed varying degrees of thermal stabilities and in some cases intramolecular transformations were observed. The formed products were isolated and characterized. Oligomerization of the polyphenols at thermo-oxidative conditions was also investigated. Finally, the antioxidative activity of the polyphenols against thermo-oxidative degradation α-linoleic acid was investigated at 200 °C. The results suggested that the studied substrates retained their antioxidative properties at elevated temperatures, with stilbenes showing most efficient protection against thermo-oxidative degradation of polyunsaturated fatty acids.

OriginalspråkEngelska
Artikelnummer134641
TidskriftFood Chemistry
Volym404, part B
DOI
StatusPublicerad - 15 mars 2023
MoE-publikationstypA1 Tidskriftsartikel-refererad

Nyckelord

  • Thermal transformationPolyphenolsLignansStilbenesAntioxidants

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