@article{Rozanova_Naumenko_Rozanova_Nardid_2010, title={Change of Antioxidative Properties of Human Placental Extracts after Freezing}, volume={20}, url={https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/188}, abstractNote={<p>The experimental data, obtained under comparative evaluation of different freeze-thawing protocols’ influence on human placenta extract antioxidant activity, estimated by capacity to reduce the ferric iron and ABTS<sup>+</sup> radical, to chelate ferrous ions, to scavenge hydrogen peroxide and also by phenolic compound content, have been presented. Slow freezing of the extracts down to –20°С has been shown to cause the lowering of its activity, while rapid freezing down to –196°С increases the activity due to protein antioxidants’ conformational changes.</p>}, number={3}, journal={Problems of Cryobiology and Cryomedicine}, author={Rozanova, S. L. and Naumenko, E. I. and Rozanova, E. D. and Nardid, O. A.}, year={2010}, month={Sep.}, pages={288–296} }