{"created":"2023-05-15T14:51:56.046315+00:00","id":70993,"links":{},"metadata":{"_buckets":{"deposit":"bba9e7e1-6024-4ee3-9873-dc6c15fa6566"},"_deposit":{"created_by":1,"id":"70993","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"70993"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00070993","sets":["10:28"]},"author_link":["697784","697788","697787","697793","697794","697792","697785","697790","697791","697789","697786","697783"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2012-11-18","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Ascorbic acid (AscH(2)) is an important naturally occurring, water-soluble antioxidant.  However, the detailed radical-scavenging mechanism of AscH(2) has yet to be fully clarified.  In this study, we investigated the radical-scavenging kinetics of AscH(2) and 5,6-isopropylidenen ascorbic acid (iAscH(2)) in the absence or presence of magnesium ion (Mg(2+)).  AscH(2) efficiently scavenged galvinoxyl and 2,2-diphenyl-1-picrylhydrazyl radicals (GO radical and DPPH radical, respectively) in deaerated methanol (MeOH) at 298 K.  The pseudo-first-order rate constants (k(obs)) determined for these reactions increased with increasing AscH(2) concentration to reach constant values.  The k(obs) values were significantly decreased in the presence of 0.1 M Mg(ClO(4))(2).  Similar results were obtained for the reactions of iAscH(2) with these radicals in deaerated MeOH as well as in deaerated acetonitrile (MeCN).  The detailed radical-scavenging mechanisms will be discussed based on the kinetic data obtained in this study.","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"19th Annual Meeting of the Society for Free Radical Biology and Medicine (SFRBM 2012)","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Nakanishi, Ikuo"}],"nameIdentifiers":[{"nameIdentifier":"697783","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Inami, Keiko"}],"nameIdentifiers":[{"nameIdentifier":"697784","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Nomura, Shogo"}],"nameIdentifiers":[{"nameIdentifier":"697785","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ohkubo, Kei"}],"nameIdentifiers":[{"nameIdentifier":"697786","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kawashima, Tomonori"}],"nameIdentifiers":[{"nameIdentifier":"697787","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Mochizuki, Masataka"}],"nameIdentifiers":[{"nameIdentifier":"697788","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Fukuzumi, Shunichi"}],"nameIdentifiers":[{"nameIdentifier":"697789","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Ozawa, Toshihiko"}],"nameIdentifiers":[{"nameIdentifier":"697790","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Matsumoto, Kenichiro"}],"nameIdentifiers":[{"nameIdentifier":"697791","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中西 郁夫","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697792","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"川島 知憲","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697793","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松本 謙一郎","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"697794","nameIdentifierScheme":"WEKO"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Radical-Scavenging Reactions of Ascorbic Acid and Its Analogue in the Presence of a Redox-Inactive Metal Ion","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Radical-Scavenging Reactions of Ascorbic Acid and Its Analogue in the Presence of a Redox-Inactive Metal Ion"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-11-21"},"publish_date":"2012-11-21","publish_status":"0","recid":"70993","relation_version_is_last":true,"title":["Radical-Scavenging Reactions of Ascorbic Acid and Its Analogue in the Presence of a Redox-Inactive Metal Ion"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T19:56:26.225545+00:00"}