Изменение антиокÑидантных ÑвойÑтв ÑкÑтрактов плаценты человека поÑле замораживаниÑ
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+ radical, to chelate ferrous ions, to scavenge hydrogen peroxide and also by phe...
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| Date: | 2010 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
Publishing House ‘Akademperiodyka’ of the National Academy of Sciences of Ukraine; Institute for Problems of Cryobiology and Cryomedicine
2010
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| Subjects: | |
| Online Access: | https://cryo.org.ua/journal/index.php/probl-cryobiol-cryomed/article/view/188 |
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| Journal Title: | Problems of Cryobiology and Cryomedicine |
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Problems of Cryobiology and Cryomedicine| Summary: | 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+ 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. |
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