Kinetic approach for evaluation of total antioxidant activity.
Identifieur interne : 001D99 ( Main/Merge ); précédent : 001D98; suivant : 001E00Kinetic approach for evaluation of total antioxidant activity.
Auteurs : Elena E. Karyakina [Russie] ; Darya V. Vokhmyanina ; Natalya V. Sizova ; Aytugan N. Sabitov ; Anastasiya V. Borisova ; Tatyana G. Sazontova ; Yury V. Arkhipenko ; Vsevolod A. Tkachuk ; Yury A. Zolotov ; Arkady A. KaryakinSource :
- Talanta [ 1873-3573 ] ; 2009.
English descriptors
- KwdEn :
- Animals, Antioxidants (chemistry), Antioxidants (metabolism), Beverages (analysis), Cell Membrane (chemistry), Cell Membrane (metabolism), Cerebral Cortex (metabolism), Chemistry Techniques, Analytical (methods), Citrus paradisi, Citrus sinensis, Electrochemistry, Ferrocyanides (chemistry), Ferrocyanides (metabolism), Hydrogen Peroxide (chemistry), Hydrogen Peroxide (metabolism), Kinetics, Lipid Peroxidation, Membrane Lipids (chemistry), Membrane Lipids (metabolism), Rats, Reproducibility of Results, Spectrophotometry, Wine (analysis).
- MESH :
- chemical , chemistry : Antioxidants, Ferrocyanides, Hydrogen Peroxide, Membrane Lipids.
- chemical , metabolism : Antioxidants, Ferrocyanides, Hydrogen Peroxide, Membrane Lipids.
- analysis : Beverages, Wine.
- chemistry : Cell Membrane.
- metabolism : Cell Membrane, Cerebral Cortex.
- methods : Chemistry Techniques, Analytical.
- Animals, Citrus paradisi, Citrus sinensis, Electrochemistry, Kinetics, Lipid Peroxidation, Rats, Reproducibility of Results, Spectrophotometry.
Abstract
We propose a novel approach for assessment of total antioxidant activity by monitoring kinetics of hydrogen peroxide (H(2)O(2)) scavenging after its injection into liquid sample under study. H(2)O(2) is known to be the strongest oxidant, really presented in human body in contrast to the majority of the model oxidative systems used for evaluation of antioxidant activity. In addition, kinetic approach, being more informative than the commonly used determination of the final product, obviously provides better discrimination of potential antioxidants. Prussian Blue based sensor due to its high sensitivity and operational stability allowed to monitor kinetics of hydrogen peroxide consumption in turbid and colored samples. The pseudo-first order kinetic constants of hydrogen peroxide scavenging in the presence of different food additives correlated with total antioxidant activity of these samples evaluated via standard procedure based on lipid peroxidation. However, in contrast to the standard method, the proposed kinetic approach is expressed and does not require fresh biological tissues.
DOI: 10.1016/j.talanta.2009.07.059
PubMed: 19836547
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Sizova</name></author><author><name sortKey="Sabitov, Aytugan N" sort="Sabitov, Aytugan N" uniqKey="Sabitov A" first="Aytugan N" last="Sabitov">Aytugan N. Sabitov</name></author><author><name sortKey="Borisova, Anastasiya V" sort="Borisova, Anastasiya V" uniqKey="Borisova A" first="Anastasiya V" last="Borisova">Anastasiya V. Borisova</name></author><author><name sortKey="Sazontova, Tatyana G" sort="Sazontova, Tatyana G" uniqKey="Sazontova T" first="Tatyana G" last="Sazontova">Tatyana G. Sazontova</name></author><author><name sortKey="Arkhipenko, Yury V" sort="Arkhipenko, Yury V" uniqKey="Arkhipenko Y" first="Yury V" last="Arkhipenko">Yury V. Arkhipenko</name></author><author><name sortKey="Tkachuk, Vsevolod A" sort="Tkachuk, Vsevolod A" uniqKey="Tkachuk V" first="Vsevolod A" last="Tkachuk">Vsevolod A. Tkachuk</name></author><author><name sortKey="Zolotov, Yury A" sort="Zolotov, Yury A" uniqKey="Zolotov Y" first="Yury A" last="Zolotov">Yury A. 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Lomonosov Moscow State University, Moscow, Russia.</nlm:affiliation><country xml:lang="fr">Russie</country><wicri:regionArea>Chemistry Faculty of M.V. Lomonosov Moscow State University, Moscow</wicri:regionArea><placeName><settlement type="city">Moscou</settlement><region>District fédéral central</region></placeName></affiliation></author><author><name sortKey="Vokhmyanina, Darya V" sort="Vokhmyanina, Darya V" uniqKey="Vokhmyanina D" first="Darya V" last="Vokhmyanina">Darya V. Vokhmyanina</name></author><author><name sortKey="Sizova, Natalya V" sort="Sizova, Natalya V" uniqKey="Sizova N" first="Natalya V" last="Sizova">Natalya V. Sizova</name></author><author><name sortKey="Sabitov, Aytugan N" sort="Sabitov, Aytugan N" uniqKey="Sabitov A" first="Aytugan N" last="Sabitov">Aytugan N. Sabitov</name></author><author><name sortKey="Borisova, Anastasiya V" sort="Borisova, Anastasiya V" uniqKey="Borisova A" first="Anastasiya V" last="Borisova">Anastasiya V. Borisova</name></author><author><name sortKey="Sazontova, Tatyana G" sort="Sazontova, Tatyana G" uniqKey="Sazontova T" first="Tatyana G" last="Sazontova">Tatyana G. Sazontova</name></author><author><name sortKey="Arkhipenko, Yury V" sort="Arkhipenko, Yury V" uniqKey="Arkhipenko Y" first="Yury V" last="Arkhipenko">Yury V. Arkhipenko</name></author><author><name sortKey="Tkachuk, Vsevolod A" sort="Tkachuk, Vsevolod A" uniqKey="Tkachuk V" first="Vsevolod A" last="Tkachuk">Vsevolod A. Tkachuk</name></author><author><name sortKey="Zolotov, Yury A" sort="Zolotov, Yury A" uniqKey="Zolotov Y" first="Yury A" last="Zolotov">Yury A. Zolotov</name></author><author><name sortKey="Karyakin, Arkady A" sort="Karyakin, Arkady A" uniqKey="Karyakin A" first="Arkady A" last="Karyakin">Arkady A. Karyakin</name></author></analytic><series><title level="j">Talanta</title><idno type="eISSN">1873-3573</idno><imprint><date when="2009" type="published">2009</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals</term><term>Antioxidants (chemistry)</term><term>Antioxidants (metabolism)</term><term>Beverages (analysis)</term><term>Cell Membrane (chemistry)</term><term>Cell Membrane (metabolism)</term><term>Cerebral Cortex (metabolism)</term><term>Chemistry Techniques, Analytical (methods)</term><term>Citrus paradisi</term><term>Citrus sinensis</term><term>Electrochemistry</term><term>Ferrocyanides (chemistry)</term><term>Ferrocyanides (metabolism)</term><term>Hydrogen Peroxide (chemistry)</term><term>Hydrogen Peroxide (metabolism)</term><term>Kinetics</term><term>Lipid Peroxidation</term><term>Membrane Lipids (chemistry)</term><term>Membrane Lipids (metabolism)</term><term>Rats</term><term>Reproducibility of Results</term><term>Spectrophotometry</term><term>Wine (analysis)</term></keywords><keywords scheme="MESH" type="chemical" qualifier="chemistry" xml:lang="en"><term>Antioxidants</term><term>Ferrocyanides</term><term>Hydrogen Peroxide</term><term>Membrane Lipids</term></keywords><keywords scheme="MESH" type="chemical" qualifier="metabolism" xml:lang="en"><term>Antioxidants</term><term>Ferrocyanides</term><term>Hydrogen Peroxide</term><term>Membrane Lipids</term></keywords><keywords scheme="MESH" qualifier="analysis" xml:lang="en"><term>Beverages</term><term>Wine</term></keywords><keywords scheme="MESH" qualifier="chemistry" xml:lang="en"><term>Cell Membrane</term></keywords><keywords scheme="MESH" qualifier="metabolism" xml:lang="en"><term>Cell Membrane</term><term>Cerebral Cortex</term></keywords><keywords scheme="MESH" qualifier="methods" xml:lang="en"><term>Chemistry Techniques, Analytical</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Animals</term><term>Citrus paradisi</term><term>Citrus sinensis</term><term>Electrochemistry</term><term>Kinetics</term><term>Lipid Peroxidation</term><term>Rats</term><term>Reproducibility of Results</term><term>Spectrophotometry</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">We propose a novel approach for assessment of total antioxidant activity by monitoring kinetics of hydrogen peroxide (H(2)O(2)) scavenging after its injection into liquid sample under study. H(2)O(2) is known to be the strongest oxidant, really presented in human body in contrast to the majority of the model oxidative systems used for evaluation of antioxidant activity. In addition, kinetic approach, being more informative than the commonly used determination of the final product, obviously provides better discrimination of potential antioxidants. Prussian Blue based sensor due to its high sensitivity and operational stability allowed to monitor kinetics of hydrogen peroxide consumption in turbid and colored samples. The pseudo-first order kinetic constants of hydrogen peroxide scavenging in the presence of different food additives correlated with total antioxidant activity of these samples evaluated via standard procedure based on lipid peroxidation. However, in contrast to the standard method, the proposed kinetic approach is expressed and does not require fresh biological tissues.</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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