Search Results - "Ouchi, Aya"
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Kinetic Study of the Quenching Reaction of Singlet Oxygen by Carotenoids and Food Extracts in Solution. Development of a Singlet Oxygen Absorption Capacity (SOAC) Assay Method
Published in Journal of agricultural and food chemistry (22-09-2010)“…A kinetic study of the quenching reaction of singlet oxygen (1O2) with eight kinds of carotenoids and α-tocopherol was performed in ethanol/chloroform/D2O…”
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Measurements of Singlet Oxygen‐Quenching Activity of Vitamin E Homologs and Palm Oil and Soybean Extracts in a Micellar Solution
Published in Lipids (01-06-2018)“…Recently, a new assay method that can quantify the singlet oxygen‐absorption capacity (SOAC) of antioxidants (AO) and food extracts in homogeneous organic…”
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Pyrroloquinoline quinone (PQQ) is reduced to pyrroloquinoline quinol (PQQH2) by vitamin C, and PQQH2 produced is recycled to PQQ by air oxidation in buffer solution at pH 7.4
Published in Bioscience, biotechnology, and biochemistry (02-01-2016)“…Measurements of the reaction of sodium salt of pyrroloquinoline quinone (PQQNa 2 ) with vitamin C (Vit C) were performed in phosphate-buffered solution (pH…”
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Development of a New Free Radical Absorption Capacity Assay Method for Antioxidants: Aroxyl Radical Absorption Capacity (ARAC)
Published in Journal of agricultural and food chemistry (23-10-2013)“…A new free radical absorption capacity assay method is proposed with use of an aroxyl radical (2,6-di-tert-butyl-4-(4′-methoxyphenyl)phenoxyl radical) and…”
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Kinetic Study of the Scavenging Reaction of the Aroxyl Radical by Seven Kinds of Rice Bran Extracts in Ethanol Solution. Development of an Aroxyl Radical Absorption Capacity (ARAC) Assay Method
Published in Journal of agricultural and food chemistry (10-12-2014)“…Recently, a new assay method that can quantify the aroxyl radical (ArO•) absorption capacity (ARAC) of antioxidants (AOHs) was proposed. In the present work,…”
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Development of Singlet Oxygen Absorption Capacity (SOAC) Assay Method. 2. Measurements of the SOAC Values for Carotenoids and Food Extracts
Published in Journal of agricultural and food chemistry (27-04-2011)“…Recently a new assay method that can quantify the singlet oxygen absorption capacity (SOAC) of antioxidants was proposed. In the present work, kinetic study of…”
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Kinetic Study of the Quenching Reaction of Singlet Oxygen by Pyrroloquinolinequinol (PQQH2, a Reduced Form of Pyrroloquinolinequinone) in Micellar Solution
Published in Journal of agricultural and food chemistry (09-03-2011)“…A kinetic study of the quenching reaction of singlet oxygen (1O2) with pyrroloquinolinequinol (PQQH2, a reduced form of pyrroloquinolinequinone (PQQ)), PQQNa2…”
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Development of Singlet Oxygen Absorption Capacity (SOAC) Assay Method. 3. Measurements of the SOAC Values for Phenolic Antioxidants
Published in Journal of agricultural and food chemistry (15-08-2012)“…Measurements of the singlet oxygen (1O2) quenching rates (k Q (S)) and the relative singlet oxygen absortpion capacity (SOAC) values were performed for 16…”
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Kinetic study of the quenching reaction of singlet oxygen by seven rice bran extracts in ethanol solution. Development of a singlet oxygen absorption capacity (SOAC) assay method
Published in Bioscience, biotechnology, and biochemistry (02-12-2015)“…Measurements of singlet oxygen ( 1 O 2 ) quenching rates (k Q (S)) and the relative singlet oxygen absorption capacity (SOAC) values were performed for seven…”
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Kinetic Study of the Antioxidant Activity of Pyrroloquinolinequinol (PQQH2, a Reduced Form of Pyrroloquinolinequinone) in Micellar Solution
Published in Journal of agricultural and food chemistry (28-01-2009)“…Kinetic study of the aroxyl radical-scavenging action of pyrroloquinolinequinol [PQQH2, a reduced form of pyrroloquinolinequinone (PQQ)] and water-soluble…”
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Notable Effects of the Metal Salts on the Quenching Reaction of Singlet Oxygen by α-Tocopherol in Ethanol Solution
Published in Bulletin of the Chemical Society of Japan (15-10-2015)“…Measurement of the quenching rate constant (kQ) of singlet oxygen (1O2) by α-tocopherol was performed in ethanol solution including four kinds of alkali and…”
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A Kinetic Study of the Radical-Scavenging Action of Tocotrienols in the Membranes of Egg Yolk Phosphatidylcholine Vesicles
Published in Journal of Nutritional Science and Vitaminology (2014)“…Vitamin E is localized in membranes and functions as an efficient inhibitor of lipid peroxidation in biological systems. In this study, we measured the…”
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Formation and Decay Dynamics of Vitamin E Radical in the Antioxidant Reaction of Vitamin E
Published in Bulletin of the Chemical Society of Japan (15-04-2009)“…In order to understand the dynamics of antioxidant actions of vitamin E (α-, β-, γ-, and δ-tocopherols, TocH) in biological systems, kinetic study of the…”
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Stopped-Flow Kinetic Study of the Aroxyl Radical-Scavenging Action of Catechins and Vitamin C in Ethanol and Micellar Solutions
Published in Journal of agricultural and food chemistry (25-06-2008)“…Kinetic study of the aroxyl radical-scavenging action of catechins (epicatechin (EC), epicatechin gallate (ECG), epigallocatechin (EGC), and epigallocatechin…”
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Kinetic study of aroxyl radical-scavenging action of vitamin E in membranes of egg yolk phosphatidylcholine vesicles
Published in Chemistry and physics of lipids (01-03-2011)“…Vitamin E is localized in membranes and functions as an efficient inhibitor of lipid peroxidation in biological systems. In this study, we measured the…”
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Clinical significance of granule‐containing myeloma cells in patients with newly diagnosed multiple myeloma
Published in Cancer medicine (Malden, MA) (01-11-2016)“…The clinical features and prognostic significance of myeloma cells containing granules remain unclear. The purpose of this retrospective study was to…”
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Kinetic Studies of the Free Radical-Scavenging Actions of Tocopherol Metabolites (α-, γ-, and δ-Carboxyethyl-6-hydroxychroman) and Trolox in Ethanol and Micellar Solutions
Published in Journal of agricultural and food chemistry (09-01-2008)“…The reaction rates (k s) of tocopherol metabolites (α-, γ-, and δ-CEHC) and Trolox with aroxyl radical have been measured in ethanol and micellar solution by a…”
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Development of a Singlet Oxygen Absorption Capacity (SOAC) Assay Method. Measurements of the SOAC Values for Carotenoids and α‑Tocopherol in an Aqueous Triton X‑100 Micellar Solution
Published in Journal of agricultural and food chemistry (01-02-2017)“…Recently, a new assay method for the quantification of the singlet oxygen absorption capacity (SOAC) of antioxidants (AOs) and food extracts in homogeneous…”
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Kinetic study of the antioxidant activity of pyrroloquinolinequinol (PQQH(2), a reduced form of pyrroloquinolinequinone) in micellar solution
Published in Journal of agricultural and food chemistry (28-01-2009)“…Kinetic study of the aroxyl radical-scavenging action of pyrroloquinolinequinol [PQQH(2), a reduced form of pyrroloquinolinequinone (PQQ)] and water-soluble…”
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Kinetic Study of Aroxyl-Radical-Scavenging and α‑Tocopherol-Regeneration Rates of Five Catecholamines in Solution: Synergistic Effect of α‑Tocopherol and Catecholamines
Published in The journal of physical chemistry. B (28-07-2016)“…Detailed kinetic studies have been performed for reactions of aroxyl (ArO•) and α-tocopheroxyl (α-Toc•) radicals with five catecholamines (CAs) (dopamine (DA),…”
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