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Namiki, Mitsuo
Proceedings of the study meeting on initial stage in the biological effect of radiation and the chain reparation mechanism1972
Proceedings of the study meeting on initial stage in the biological effect of radiation and the chain reparation mechanism1972
AbstractAbstract
No abstract available
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Source
Hatano, Hiroyuki (Kyoto Univ. (Japan). Faculty of Science); Saito, Masahiro (eds.); Kyoto Univ., Kumatori, Osaka (Japan). Research Reactor Inst; p. 22-25; 1972; Study meeting on initial stage in the biological effect of radiation and the chain reparation mechanism; Kumatori, Osaka, Japan; 10 Jan 1972
Record Type
Report
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Conference
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AbstractAbstract
No abstract available
Primary Subject
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Journal Article
Journal
Agr. Biol. Chem. (Tokyo); v. 36(4); p. 551-557
Country of publication
ALCOHOLS, BIOLOGICAL EFFECTS, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, DECOMPOSITION, DISPERSIONS, ELECTROMAGNETIC RADIATION, HETEROCYCLIC COMPOUNDS, HYDROXY COMPOUNDS, IONIZING RADIATIONS, MIXTURES, ORGANIC COMPOUNDS, ORGANIC NITROGEN COMPOUNDS, PYRIMIDINES, RADIATION EFFECTS, RADIATIONS, RADICALS, SEPARATION PROCESSES, SOLUTIONS, SPECTRA, URACILS
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AbstractAbstract
No abstract available
Source
Letter-to-the-editor.
Record Type
Journal Article
Journal
Bulletin of the Chemical Society of Japan; v. 46(12); p. 3896-3898
Country of publication
ALCOHOLS, CHALCOGENIDES, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, DECOMPOSITION, DISPERSIONS, ELECTROMAGNETIC RADIATION, ELECTRONS, ELEMENTARY PARTICLES, FERMIONS, HETEROCYCLIC COMPOUNDS, HYDROXY COMPOUNDS, IONIZING RADIATIONS, LEPTONS, MIXTURES, NITROGEN COMPOUNDS, ORGANIC COMPOUNDS, ORGANIC NITROGEN COMPOUNDS, OXIDES, OXYGEN COMPOUNDS, POLYMERIZATION, PYRIMIDINES, RADIATION EFFECTS, RADIATIONS, RADICALS, SOLUTIONS
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AbstractAbstract
[en] Gamma-radiolosis of D-glucose in aqueous solution under anaerobic condition was investigated. D-glucose was significantly decomposed by action of a hydroxyl radical, a primary radiolytic product of water. Under anaerobic condition, glucose radicals formed by hydrogen abstraction of hydroxyl radical were dehydrated to give deoxygenated sugars, and a part of the radicals followed disproportionation reaction to afford dicarbonyl sugars. Among the products formed through these reactions, 2-deoxy-D-arabinohexono-1, 4-lactone (G in N2=0.6, G in N2O=0.8), 3-deoxy-D-erythrohexosulose and other 3-deoxy sugars as deoxygenated compounds, and D-arabinohexosulose and D-xylohexos-5-ulose as dicarbonyl compounds were identified. From these results, the radiolytic scheme of D-glucose in the absence of oxygen was proposed. (auth.)
Record Type
Journal Article
Journal
Agricultural and Biological Chemistry (Tokyo); v. 41(6); p. 951-957
Country of publication
ALDEHYDES, CARBOHYDRATES, CARBOXYLIC ACID SALTS, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, DECOMPOSITION, DISPERSIONS, ELECTROMAGNETIC RADIATION, ELEMENTS, HEXOSES, HOMOGENEOUS MIXTURES, IONIZING RADIATIONS, MIXTURES, MONOSACCHARIDES, NONMETALS, ORGANIC COMPOUNDS, RADIATION EFFECTS, RADIATIONS, RADICALS, SACCHARIDES, SOLUTIONS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Primary Subject
Record Type
Journal Article
Journal
Nippon Nogeikagaku Kaishi; v. 46(9); p. 459-465
Country of publication
AMINO ACIDS, CARBOHYDRATES, CARBOXYLIC ACIDS, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, DECOMPOSITION, DISACCHARIDES, ELECTROMAGNETIC RADIATION, ELEMENTS, HEXOSES, HYDROXY ACIDS, IONIZING RADIATIONS, KETONES, MONOSACCHARIDES, NONMETALS, OLIGOSACCHARIDES, OPTICAL PROPERTIES, ORGANIC ACIDS, ORGANIC COMPOUNDS, ORGANOLEPTIC PROPERTIES, PHYSICAL PROPERTIES, RADIATION EFFECTS, RADIATIONS, SACCHARIDES
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
[en] Gamma-radiolysis of fructose in aqueous solution under aerated conditions formed various oxidized products, such as dicarbonyl hexoses, lower molecular aldoses and aldonic acids. Among these radiolytic products, D-arabinohexosulose (1, G = 2.2) and D-threo-2,5-hexodiulose (2, G = 1.5) were identified as major hexose derivatives, and D-threo-2,3-hexodiulose (3) and D-lyxo-hexos-5-ulose (4) as minor products. The radiolytic processes were found to be derived through fructose radicals, similarly to anaerobic radiolysis of fructose. The mechanism of radiolysis was proposed to be initiated by hydrogen abstraction with hydroxyl radical, followed by formation and degradation of fructose hydroperoxy radicals. (author)
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Record Type
Journal Article
Journal
Agricultural and Biological Chemistry (Tokyo); ISSN 0002-1369; 
; v. 45(9); p. 1999-2003
; v. 45(9); p. 1999-2003
Country of publication
CARBOHYDRATES, CARBOXYLIC ACIDS, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, DECOMPOSITION, DISPERSIONS, ELECTROMAGNETIC RADIATION, ELEMENTS, ESTERS, HETEROCYCLIC COMPOUNDS, HEXOSES, HOMOGENEOUS MIXTURES, IONIZING RADIATIONS, KETONES, MICROORGANISMS, MIXTURES, MONOSACCHARIDES, NONMETALS, ORGANIC ACIDS, ORGANIC COMPOUNDS, RADIATION EFFECTS, RADIATIONS, RADICALS, SACCHARIDES, SOLUTIONS
Reference NumberReference Number
INIS VolumeINIS Volume
INIS IssueINIS Issue
AbstractAbstract
No abstract available
Record Type
Journal Article
Journal
Agr. Biol. Chem. (Tokyo); v. 38(9); p. 1589-1595
Country of publication
AROMATICS, BETA DECAY RADIOISOTOPES, BETA-MINUS DECAY RADIOISOTOPES, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, COBALT ISOTOPES, DECOMPOSITION, DISPERSIONS, ELECTROMAGNETIC RADIATION, HYDROXY COMPOUNDS, INTERMEDIATE MASS NUCLEI, IONIZING RADIATIONS, ISOMERIC TRANSITION ISOTOPES, ISOTOPES, MINUTES LIVING RADIOISOTOPES, MIXTURES, NUCLEI, ODD-ODD NUCLEI, ORGANIC COMPOUNDS, ORGANIC HALOGEN COMPOUNDS, PHENOLS, RADIATION EFFECTS, RADIATIONS, RADIOISOTOPES, SOLUTIONS, YEARS LIVING RADIOISOTOPES
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AbstractAbstract
[en] Irradiated D-fructose solution exhibited marked enhancement in browning reaction with amino acid, and this effect depended on some radiolytic products of fructose. The radiolytic products formed in solution under aerated and anaerobic conditions were fractionated by column chromatography on Sephadex G-10, LH-20 and ion-exchange resin and by TLC on silica gel. The browning activity of each fraction was determined by reaction with glycine. The browning active products in the fraction were identified by GLC, GC-MS and TLC; they were: 6-deoxy-D-threo-2,5-hexodiulose, D-threo-2,5-hexodiulose, D-arabino-hexosulose and 4-deoxy-L-glycero-2,5-hexodiulose from irradiated solution under anaerobic conditions and D-threo-2,5-hexodiulose and D-arabinohexosulose from solution under aerated conditions. The browning reactions of the model compounds with glycine also indicated that D-threo-2,5-hexodiulose and 6-deoxy-D-threo-2,5-hexodiulose were more active than D-arabinohexosulose and 3-deoxy-D-erythrohexosulose. (author)
Record Type
Journal Article
Journal
Nippon Nogeikagaku Kaishi; ISSN 0002-1407; ; v. 55(7); p. 583-589
; v. 55(7); p. 583-589
Country of publication
CARBOHYDRATES, CARBOXYLIC ACIDS, CHEMICAL RADIATION EFFECTS, CHEMICAL REACTIONS, CHROMATOGRAPHY, DECOMPOSITION, DISPERSIONS, ELECTROMAGNETIC RADIATION, ELEMENTS, HEXOSES, HOMOGENEOUS MIXTURES, IONIZING RADIATIONS, KETONES, MIXTURES, MONOSACCHARIDES, NONMETALS, OPTICAL PROPERTIES, ORGANIC ACIDS, ORGANIC COMPOUNDS, ORGANOLEPTIC PROPERTIES, PHYSICAL PROPERTIES, RADIATION EFFECTS, RADIATIONS, SACCHARIDES, SEPARATION PROCESSES, SOLUTIONS
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AbstractAbstract
No abstract available
Primary Subject
Record Type
Journal Article
Journal
Nippon Shokuhin Kogyo Gakkai-Shi; v. 20(10); p. 478-484
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AbstractAbstract
No abstract available
Primary Subject
Source
Letter-to-the-editor.
Record Type
Journal Article
Journal
Journal of Radiation Research; v. 14(4); p. 423-425
Country of publication
ALCOHOLS, AZINES, CHEMICAL REACTIONS, CHEMISTRY, COMPLEXES, DECOMPOSITION, ELECTRONS, ELEMENTARY PARTICLES, ELEMENTS, FERMIONS, HEATING, HETEROCYCLIC COMPOUNDS, HYDROXY COMPOUNDS, IRON COMPLEXES, LEPTONS, NONMETALS, ORGANIC COMPOUNDS, ORGANIC NITROGEN COMPOUNDS, PYRIMIDINES, RARE GASES, SOLVATION, TRANSITION ELEMENT COMPLEXES, URACILS
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