{"created":"2023-06-19T11:34:42.405035+00:00","id":3252,"links":{},"metadata":{"_buckets":{"deposit":"6a9484be-e170-4528-a839-a63c4dcf226f"},"_deposit":{"created_by":17,"id":"3252","owners":[17],"pid":{"revision_id":0,"type":"depid","value":"3252"},"status":"published"},"_oai":{"id":"oai:kyoritsu.repo.nii.ac.jp:00003252","sets":["133:276:145:259"]},"author_link":["13198","13312","13313","13198","13312","13313"],"control_number":"3252","item_1_biblio_info_14":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2018-02","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"24","bibliographicPageStart":"15","bibliographicVolumeNumber":"61","bibliographic_titles":[{"bibliographic_title":"共立女子短期大学生活科学科紀要"},{"bibliographic_title":"Annual bulletin department of the science of living","bibliographic_titleLang":"en"}]}]},"item_1_creator_6":{"attribute_name":"著者名(日)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"金松, 澄雄","creatorNameLang":"ja"},{"creatorName":"カネマツ, スミオ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"13198","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"玉元, 奈律美","creatorNameLang":"ja"},{"creatorName":"タマモト, ナツミ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"13312","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"白江, 好友","creatorNameLang":"ja"},{"creatorName":"シラエ, ヨシノリ","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"13313","nameIdentifierScheme":"WEKO"}]}]},"item_1_creator_8":{"attribute_name":"著者名(英)","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kanematsu, Sumio","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"13198","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tamamoto, Natsumi","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"13312","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Shirae, Yoshinori","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"13313","nameIdentifierScheme":"WEKO"}]}]},"item_1_description_11":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"光励起リボフラビン(Rib)存在下でのアスコルビン酸(Asc)の光酸化におけるH₂O₂生成機構について,Asc,H₂O₂,O₂間の化学量論関係をもちいて検討した。1.25 μM または12.5 μM Rib の存在下,Ascの光酸化によるO₂吸収速度は光強度に比例した。O₂吸収量に対するH₂O₂生成量のモル比は,光強度の増大とともに増加し,高光強度で約0.5の一定値になった。ローズベンガル(RB)を光増感剤とした場合は,0.125 μM Rb 存在下では,H₂O₂/O₂比は光強度に依存せず約0.5であった。1.25 μM RBでは,Rib の場合と同様の傾向を示し,比は最終的に約0.6であった。Asc光酸化におけるO₂⁻が関与するType Iおよび¹O₂ が関与するType II反応の寄与の割合を検討するために,SOD や¹O₂ 消光剤の影響を調べた結果,Type II反応と伴にType I反応も関与していることが示された。空気開放系でAscを完全に酸化させた場合,Ascと生じたH₂O₂ の化学量論関係は1: 2であった。以上の結果から得られたH₂O₂/O₂比とH₂O₂/Asc比を満足させる反応機構を考察した。","subitem_description_type":"Other"}]},"item_1_description_12":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"An H₂O₂ generation pathway for ascorbic acid (Asc) oxidation in the presence of sensitized riboflavin (Rib) was investigated by analyzing the stoichiometric relation between H₂O₂, Asc　and O₂. When 1.25 or 12.5 μM Rib was present, the O₂ uptake rate of Asc photooxidation　increased linearly with increasing light intensity. The molar ratio of the amount of O₂ uptake to the amount of H₂O₂ produced increased with increasing light intensity, and then became a constant value of approx. 0.5. With 0.125 μM rose bengal (RB) instead of Rib, the ratio of H₂O₂/ O₂ did not depend on light intensity, and was about 0.5. When 1.25 μM RB was used, the ratio showed similar patterns to those of Rib, and a constant value of approx. 0.6 was obtained.\nTo determine the contribution of Type I and Type II reactions in Asc photooxidation, the effect of SOD and ¹O₂ quencher on the O₂ uptake rate was investigated. The results showed the occurrence of not only Type II but also Type I reactions. When Asc was oxidized completely in open air, the stoichiometry of Asc to H₂O₂ was 1:2. Based on these results, we discussed a pathway of Asc photooxidation to accommodate the obtained values of H₂O₂/O₂ and H₂O₂/Asc.","subitem_description_type":"Other"}]},"item_1_source_id_13":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN10465631","subitem_source_identifier_type":"NCID"}]},"item_1_text_9":{"attribute_name":"著者所属(日)","attribute_value_mlt":[{"subitem_text_value":"共立女子短期大学生活科学科"},{"subitem_text_value":"南九州大学健康栄養学部食品開発科学科"},{"subitem_text_value":"南九州大学健康栄養学部食品開発科学科"}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2018-04-27"}],"displaytype":"detail","filename":"seikatsu61_2kanematsu.pdf","filesize":[{"value":"864.1 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"seikatsu61_2kanematsu","url":"https://kyoritsu.repo.nii.ac.jp/record/3252/files/seikatsu61_2kanematsu.pdf"},"version_id":"9e567f57-5053-406b-99a6-5b79ca8426f0"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"光増感剤","subitem_subject_scheme":"Other"},{"subitem_subject":"光酸化","subitem_subject_scheme":"Other"},{"subitem_subject":"アスコルビン酸","subitem_subject_scheme":"Other"},{"subitem_subject":"リボフラビン","subitem_subject_scheme":"Other"},{"subitem_subject":"過酸化水素","subitem_subject_scheme":"Other"},{"subitem_subject":"photosensitizer","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"photooxidation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"ascorbic acid","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"riboflavin","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"hydrogen peroxide","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"光励起リボフラビンによるアスコルビン酸からのH₂O₂の生成機構","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"光励起リボフラビンによるアスコルビン酸からのH₂O₂の生成機構","subitem_title_language":"ja"},{"subitem_title":"An H₂O₂ Generation Pathway for Riboflavin-sensitized Oxidation of Ascorbic Acid","subitem_title_language":"en"}]},"item_type_id":"1","owner":"17","path":["259"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2018-04-27"},"publish_date":"2018-04-27","publish_status":"0","recid":"3252","relation_version_is_last":true,"title":["光励起リボフラビンによるアスコルビン酸からのH₂O₂の生成機構"],"weko_creator_id":"17","weko_shared_id":-1},"updated":"2023-08-31T01:25:58.089712+00:00"}