Antioxidant effects of carotenoids in a model pigment-protein complex

作者:Fiedor Joanna*; Sulikowska Aleksandra; Orzechowska Aleksandra; Fiedor Leszek; Burda Kvetoslava
来源:Acta Biochimica Polonica, 2012, 59(1): 61-64.

摘要

The effect of carotenoids on stability of model photosynthetic pigment-protein complexes subjected to chemical oxidation with hydrogen peroxide or potassium ferricyanide was investigated. The oxidation of carotenoid-less and carotenoid-containing complexes was conducted in the presence or absence of ascorbic acid. The progress of the reactions was monitored by use of absorption and fluorescence spectroscopy. Our results show that carotenoids may significantly enhance the stability of photosynthetic complexes against oxidation and their protective (antioxidant) effect depends on the type of the oxidant.

  • 出版日期2012