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Abuzaytoun R, Budge S, Hansen LT, MacKinnon S. Modification of the Ferrous Oxidation‐Xylenol Orange Method for Determination of Peroxide Value in Highly Pigmented Sea Cucumber Viscera Lipid. J AM OIL CHEM SOC 2020. [DOI: 10.1002/aocs.12344] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Reem Abuzaytoun
- Department of Process Engineering and Applied ScienceDalhousie University Halifax NS B3H 4J3 Canada
| | - Suzanne Budge
- Department of Process Engineering and Applied ScienceDalhousie University Halifax NS B3H 4J3 Canada
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Sakurai Y, Yamaguchi T, Ando K, Kuwabara K, Nakajima H, Morimoto C, Yoshikawa S, Niwa M, Miyake Y, Kanaori K, Nakajima A, Tajima K. Development of a Flow-Injection ESR System for Evaluating the Lipophilic Alkoxyl Radical Eliminating Capacities (L-AREC) of Tocopherol Analogues and Unsaturated Fatty Acids. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2019. [DOI: 10.1246/bcsj.20190059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Yasuhiro Sakurai
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Tomoko Yamaguchi
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kai Ando
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Keiko Kuwabara
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Hiroki Nakajima
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Chie Morimoto
- Department of Food and Nutrition, Matsuyama Shinonome Junior College, Matsuyama, Ehime 790-531, Japan
| | - Shinichi Yoshikawa
- Research Institute for Creating the Future, Fuji Oil Holdings Inc., Sumiyoshi, Izumisano, Osaka 598-8540, Japan
| | - Masumi Niwa
- Designerfoods Co., Ltd., Nakagawa-ku, Nagoya, Aichi 454-0958, Japan
| | - Yusuke Miyake
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kenji Kanaori
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Akira Nakajima
- Frontier Science Research Center, University of Miyazaki, Kiyotake, Miyazaki 889-1692, Japan
| | - Kunihiko Tajima
- Department of Molecular Chemistry, Graduate School of Kyoto Institute of Technology, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
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Mukai K, Ohara A, Ito J, Hirata M, Kobayashi E, Nakagawa K, Nagaoka SI. Kinetic Study of the Quenching Reaction of Singlet Oxygen by Eight Vegetable Oils in Solution. J Oleo Sci 2019; 68:21-31. [DOI: 10.5650/jos.ess18179] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- Kazuo Mukai
- Department of Chemistry, Faculty of Science, Ehime University
| | - Ayaka Ohara
- Department of Chemistry, Faculty of Science, Ehime University
| | - Junya Ito
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Masayuki Hirata
- Department of Chemistry, Faculty of Science, Ehime University
| | - Eri Kobayashi
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
| | - Kiyotaka Nakagawa
- Food and Biodynamic Chemistry Laboratory, Graduate School of Agricultural Science, Tohoku University
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Poliak P, Škorňa P, Klein E, Lukeš V. Thermodynamics of radical scavenging of symmetric carotenoids and their charged species. Food Chem 2018; 268:542-549. [PMID: 30064795 DOI: 10.1016/j.foodchem.2018.06.063] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Revised: 05/21/2018] [Accepted: 06/13/2018] [Indexed: 11/29/2022]
Abstract
For nine symmetric natural carotenoids, a comprehensive thermodynamics study of processes associated with their radical scavenging activity is proposed. We have investigated the hydrogen atom transfer (HAT) from the parent carotenoid, mono-radical species, radical cations and radical anions. Electron transfer and proton transfer reactions were also studied. Terminal units and carbon atoms in their vicinity were identified as thermodynamically favoured reaction sites of the HAT mechanism. Rhodoxanthin, canthaxanthin and astaxanthin, as strong antioxidants, without any pro-oxidative effect, were found to have bond dissociation enthalpies (BDE) higher than 300 kJ mol-1 and the most negative electron affinities. The electron transfer to a carotenoid is exothermic, while other studied reactions are endothermic. In solvent, the electron transfer reactions may be preferred instead of hydrogen atom transfer.
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Affiliation(s)
- Peter Poliak
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic.
| | - Peter Škorňa
- Institute of Inorganic Chemistry, Slovak Academy of Sciences, Dúbravská cesta 9, SK-845 36 Bratislava, Slovak Republic
| | - Erik Klein
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
| | - Vladimír Lukeš
- Institute of Physical Chemistry and Chemical Physics, Faculty of Chemical and Food Technology, Slovak University of Technology in Bratislava, Radlinského 9, SK-812 37 Bratislava, Slovak Republic
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Edge R, Truscott TG. Singlet Oxygen and Free Radical Reactions of Retinoids and Carotenoids-A Review. Antioxidants (Basel) 2018; 7:antiox7010005. [PMID: 29301252 PMCID: PMC5789315 DOI: 10.3390/antiox7010005] [Citation(s) in RCA: 89] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 12/11/2017] [Accepted: 12/29/2017] [Indexed: 12/29/2022] Open
Abstract
We report on studies of reactions of singlet oxygen with carotenoids and retinoids and a range of free radical studies on carotenoids and retinoids with emphasis on recent work, dietary carotenoids and the role of oxygen in biological processes. Many previous reviews are cited and updated together with new data not previously reviewed. The review does not deal with computational studies but the emphasis is on laboratory-based results. We contrast the ease of study of both singlet oxygen and polyene radical cations compared to neutral radicals. Of particular interest is the switch from anti- to pro-oxidant behavior of a carotenoid with change of oxygen concentration: results for lycopene in a cellular model system show total protection of the human cells studied at zero oxygen concentration, but zero protection at 100% oxygen concentration.
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Affiliation(s)
- Ruth Edge
- Dalton Cumbrian Facility, The University of Manchester, Westlakes Science and Technology Park, Moor Row, Cumbria CA24 3HA, UK.
| | - T George Truscott
- School of Chemical and Physical Sciences, Lennard-Jones Building, Keele University, Staffordshire ST5 5BG, UK.
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