Publications by authors named "Aya Ouchi"

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Measurements of Singlet Oxygen-Quenching Activity of Vitamin E Homologs and Palm Oil and Soybean Extracts in a Micellar Solution.
Kazuo Mukai, Eri Ishikawa, Aya Ouchi, Shin-Ichi Nagaoka, Koichi Abe

Lipids· June 2018

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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.
Kazuo Mukai, Aya Ouchi, Nagao Azuma, Shingo Takahashi, Koichi Aizawa

J Agric Food Chem· February 2017

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Clinical significance of granule-containing myeloma cells in patients with newly diagnosed multiple myeloma.
Kazuhito Suzuki, Shingo Yano, Kaichi Nishiwaki, Koji Sano, Takaki Shimada, Aya Ouchi

Cancer Med· November 2016

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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.
Kazuo Mukai, Aya Ouchi, Shin-ichi Nagaoka, Masahiko Nakano, Kazuto Ikemoto

Biosci Biotechnol Biochem· September 2016

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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.
Kazuo Mukai, Eri Ishikawa, Takumi Abe, Aya Ouchi, Shin-Ichi Nagaoka

Biosci Biotechnol Biochem· August 2016

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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.
Kazuo Mukai, Kanae Nagai, Yoshifumi Egawa, Aya Ouchi, Shin-Ichi Nagaoka

J Phys Chem B· July 2016

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A kinetic study of the radical-scavenging action of tocotrienols in the membranes of egg yolk phosphatidylcholine vesicles.
Kenji Fukuzawa, Aya Ouchi, Shin-Ichi Nagaoka, Akira Shibata, Kazuo Mukai

J Nutr Sci Vitaminol (Tokyo)· March 2016

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Kinetic study of the quenching reaction of singlet oxygen by α-, β-, γ-, δ-tocotrienols, and palm oil and soybean extracts in solution.
Kazuo Mukai, Eri Ishikawa, Aya Ouchi, Shin-Ichi Nagaoka, Tomomi Suzuki

Biosci Biotechnol Biochem· July 2015

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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.
Kazuo Mukai, Aya Ouchi, Takumi Abe, Kazumasa Murata, Kiyotaka Nakagawa

J Agric Food Chem· December 2014

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Finding of synergistic and cancel effects on the aroxyl radical-scavenging rate and suppression of prooxidant effect for coexistence of α-tocopherol with β-, γ-, and δ-tocopherols (or -tocotrienols).
Aya Ouchi, Shin-ichi Nagaoka, Tomomi Suzuki, Katsuhiro Izumisawa, Taisuke Koike

J Agric Food Chem· August 2014

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Kinetic study of aroxyl radical scavenging and α-tocopheroxyl regeneration rates of pyrroloquinolinequinol (PQQH2, a reduced form of pyrroloquinolinequinone) in dimethyl sulfoxide solution: finding of synergistic effect on the reaction rate due to the coexistence of α-tocopherol and PQQH2.
Aya Ouchi, Kazuto Ikemoto, Masahiko Nakano, Shin-Ichi Nagaoka, Kazuo Mukai

J Agric Food Chem· November 2013

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Development of a new free radical absorption capacity assay method for antioxidants: aroxyl radical absorption capacity (ARAC).
Shin-ichi Nagaoka, Kanae Nagai, Yuko Fujii, Aya Ouchi, Kazuo Mukai

J Agric Food Chem· October 2013

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Aroxyl-radical-scavenging rate increases remarkably under the coexistence of α-tocopherol and ubiquinol-10 (or vitamin C): finding of synergistic effect on the reaction rate.
Kazuo Mukai, Aya Ouchi, Saori Nakaya, Shin-ichi Nagaoka

J Phys Chem B· July 2013

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Notable effects of metal salts on UV-vis absorption spectra of α-, β-, γ-, and δ-tocopheroxyl radicals in acetonitrile solution. The complex formation between tocopheroxyls and metal cations.
Kazuo Mukai, Yutaro Kohno, Aya Ouchi, Shin-ichi Nagaoka

J Phys Chem B· August 2012

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Development of singlet oxygen absorption capacity (SOAC) assay method. 3. Measurements of the SOAC values for phenolic antioxidants.
Kazuo Mukai, Aya Ouchi, Shingo Takahashi, Koichi Aizawa, Takahiro Inakuma

J Agric Food Chem· August 2012

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Kinetic study of the α-tocopherol-regeneration reaction of ubiquinol-10 in methanol and acetonitrile solutions: notable effect of the alkali and alkaline earth metal salts on the reaction rates.
Kazuo Mukai, Masanori Oi, Aya Ouchi, Shin-ichi Nagaoka

J Phys Chem B· March 2012

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Notable effects of the metal salts on the formation and decay reactions of α-tocopheroxyl radical in acetonitrile solution. The complex formation between α-tocopheroxyl and metal cations.
Yutaro Kohno, Miyabi Fujii, Chihiro Matsuoka, Haruka Hashimoto, Aya Ouchi

J Phys Chem B· August 2011

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Development of singlet oxygen absorption capacity (SOAC) assay method. 2. Measurements of the SOAC values for carotenoids and food extracts.
Koichi Aizawa, Yuko Iwasaki, Aya Ouchi, Takahiro Inakuma, Shin-ichi Nagaoka

J Agric Food Chem· April 2011

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Kinetic study of aroxyl radical-scavenging action of vitamin E in membranes of egg yolk phosphatidylcholine vesicles.
Kenji Fukuzawa, Aya Ouchi, Akira Shibata, Shin-ichi Nagaoka, Kazuo Mukai

Chem Phys Lipids· March 2011

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Kinetic study of the quenching reaction of singlet oxygen by Pyrroloquinolinequinol (PQQH(2), a reduced form of Pyrroloquinolinequinone) in micellar solution.
Kazuo Mukai, Aya Ouchi, Masahiko Nakano

J Agric Food Chem· March 2011

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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.
Aya Ouchi, Koichi Aizawa, Yuko Iwasaki, Takahiro Inakuma, Junji Terao

J Agric Food Chem· September 2010

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Tunneling effect in regeneration reaction of vitamin E by ubiquinol.
Aya Ouchi, Shin-ichi Nagaoka, Kazuo Mukai

J Phys Chem B· May 2010

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Kinetic study of the aroxyl radical-scavenging reaction of alpha-tocopherol in methanol solution: notable effect of the alkali and alkaline earth metal salts on the reaction rates.
Aya Ouchi, Shin-ichi Nagaoka, Kouichi Abe, Kazuo Mukai

J Phys Chem B· October 2009

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Kinetic study of the prooxidant effect of alpha-tocopherol. Hydrogen abstraction from lipids by alpha-tocopheroxyl radical.
Aya Ouchi, Masaharu Ishikura, Kensuke Konishi, Shin-Ichi Nagaoka, Kazuo Mukai

Lipids· October 2009

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Kinetic study of the antioxidant activity of pyrroloquinolinequinol (PQQH(2), a reduced form of pyrroloquinolinequinone) in micellar solution.
Aya Ouchi, Masahiko Nakano, Shin-Ichi Nagaoka, Kazuo Mukai

J Agric Food Chem· January 2009

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