{"created":"2023-05-15T16:32:41.845663+00:00","id":4642,"links":{},"metadata":{"_buckets":{"deposit":"a1071f59-4629-4cd0-8fde-0db9b3fe8777"},"_deposit":{"created_by":2,"id":"4642","owners":[2],"pid":{"revision_id":0,"type":"depid","value":"4642"},"status":"published"},"_oai":{"id":"oai:nagasaki-u.repo.nii.ac.jp:00004642","sets":["73:74"]},"author_link":["18636","18633","18635","18634"],"item_2_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015-09-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"36","bibliographicPageEnd":"5102","bibliographicPageStart":"5099","bibliographicVolumeNumber":"56","bibliographic_titles":[{"bibliographic_title":"Tetrahedron Letters"}]}]},"item_2_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"A large number of black tea polyphenols remain uncharacterized because of the complexity of catechin oxidation reactions that occur during tea fermentation. In the course of our studies on black tea polyphenols, we examined the enzymatic degradation of theaflavins, which are black tea pigments having a benzotropolone chromophore. Oxidation of theaflavin with peroxidase afforded a new product named theacoumarin A together with known pigment theanaphthoquinone. The structure of the new compound was determined by spectroscopic examination and a production mechanism via theanaphthoquinone is proposed.","subitem_description_type":"Abstract"}]},"item_2_description_63":{"attribute_name":"引用","attribute_value_mlt":[{"subitem_description":"Tetrahedron Letters, 56(36), pp.5099-5102; 2015","subitem_description_type":"Other"}]},"item_2_publisher_33":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier Limited"}]},"item_2_relation_12":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1016/j.tetlet.2015.07.037","subitem_relation_type_select":"DOI"}}]},"item_2_rights_13":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"c 2015 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license http://creativecommons.org/licenses/by-nc-nd/4.0/"}]},"item_2_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00404039","subitem_source_identifier_type":"ISSN"}]},"item_2_version_type_16":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Kusano, Rie"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Matsuo, Yosuke"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Saito, Yoshinori"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Tanaka, Takashi"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-12-21"}],"displaytype":"detail","filename":"Supple.pdf","filesize":[{"value":"812.9 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"Supple.pdf","url":"https://nagasaki-u.repo.nii.ac.jp/record/4642/files/Supple.pdf"},"version_id":"bd3bb761-a429-4568-962f-e9bed99f67c5"},{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-12-21"}],"displaytype":"detail","filename":"TetLet56_5099.pdf","filesize":[{"value":"221.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"TetLet56_5099.pdf","url":"https://nagasaki-u.repo.nii.ac.jp/record/4642/files/TetLet56_5099.pdf"},"version_id":"df770556-d43b-4e52-98b5-d79063715166"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Black tea","subitem_subject_scheme":"Other"},{"subitem_subject":"Peroxidase","subitem_subject_scheme":"Other"},{"subitem_subject":"Theacoumarin A","subitem_subject_scheme":"Other"},{"subitem_subject":"Theaflavin","subitem_subject_scheme":"Other"},{"subitem_subject":"Theanaphthoquinone","subitem_subject_scheme":"Other"}]},"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Oxidation mechanism of black tea pigment theaflavin by peroxidase","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Oxidation mechanism of black tea pigment theaflavin by peroxidase"}]},"item_type_id":"2","owner":"2","path":["74"],"pubdate":{"attribute_name":"公開日","attribute_value":"2017-09-03"},"publish_date":"2017-09-03","publish_status":"0","recid":"4642","relation_version_is_last":true,"title":["Oxidation mechanism of black tea pigment theaflavin by peroxidase"],"weko_creator_id":"2","weko_shared_id":-1},"updated":"2023-05-16T03:18:16.664413+00:00"}