WEKO3
アイテム
{"_buckets": {"deposit": "56354d90-4317-4d12-8a68-b9fd7fee8f10"}, "_deposit": {"created_by": 2, "id": "21024", "owners": [2], "pid": {"revision_id": 0, "type": "depid", "value": "21024"}, "status": "published"}, "_oai": {"id": "oai:nagasaki-u.repo.nii.ac.jp:00021024", "sets": ["74"]}, "author_link": ["88531", "88530", "88533", "88532"], "item_2_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2007-12", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "12", "bibliographicPageEnd": "1772", "bibliographicPageStart": "1768", "bibliographicVolumeNumber": "55", "bibliographic_titles": [{"bibliographic_title": "Chemical \u0026 Pharmaceutical Bulletin"}]}]}, "item_2_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "During black tea production, catechins and their galloyl esters are enzymatically oxidized to generate a complex mixture of black tea polyphenols. The role of galloyl ester groups in this process has yet to be determined. Enzymatic oxidation of epicatechin 3-O-gallate (1) yielded two new oxidation products, theaflavate C and bistheaflavate A, along with theaflavate A (2), a known dimer of 1 generated by coupling of the B-ring with the galloyl group. Theaflavate C is a trimer of 1 and possesses two benzotropolone moieties generated by the oxidative coupling of the galloyl groups with the catechol B-rings. Bistheaflavate A was found to be a tetramer produced by intermolecular coupling of two benzotropolone moieties of 2. From the structures of the products, it was deduced that oxidative coupling of galloyl groups resulted in extension of the molecular size of the products in catechin oxidation.", "subitem_description_type": "Abstract"}]}, "item_2_description_63": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "Chemical \u0026 Pharmaceutical Bulletin v.55(12) p.1768-1772, 2007", "subitem_description_type": "Other"}]}, "item_2_publisher_33": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "The Pharmaceutical Society of Japan"}]}, "item_2_relation_11": {"attribute_name": "PubMed番号", "attribute_value_mlt": [{"subitem_relation_type": "isIdenticalTo", "subitem_relation_type_id": {"subitem_relation_type_id_text": "18057757", "subitem_relation_type_select": "PMID"}}]}, "item_2_relation_12": {"attribute_name": "DOI", "attribute_value_mlt": [{"subitem_relation_type": "isIdenticalTo", "subitem_relation_type_id": {"subitem_relation_type_id_text": "10.1248/cpb.55.1768", "subitem_relation_type_select": "DOI"}}]}, "item_2_relation_42": {"attribute_name": "関係URI", "attribute_value_mlt": [{"subitem_relation_name": [{"subitem_relation_name_text": "http://dx.doi.org/10.1248/cpb.55.1768"}]}]}, "item_2_source_id_10": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA10885497", "subitem_source_identifier_type": "NCID"}]}, "item_2_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "00092363", "subitem_source_identifier_type": "ISSN"}]}, "item_2_source_id_8": {"attribute_name": "EISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1347-5223", "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_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Kusano, Rie"}], "nameIdentifiers": [{"nameIdentifier": "88530", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tanaka, Takashi"}], "nameIdentifiers": [{"nameIdentifier": "88531", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Matsuo, Yosuke"}], "nameIdentifiers": [{"nameIdentifier": "88532", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Kouno, Isao"}], "nameIdentifiers": [{"nameIdentifier": "88533", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2020-12-23"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "CPBul55_1768.pdf", "filesize": [{"value": "137.1 kB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 137100.0, "url": {"label": "CPBul55_1768.pdf", "url": "https://nagasaki-u.repo.nii.ac.jp/record/21024/files/CPBul55_1768.pdf"}, "version_id": "bc5865cb-64f4-4f1c-97d3-391ded60814b"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "epicatechin 3-O-gallate", "subitem_subject_scheme": "Other"}, {"subitem_subject": "benzotropolone", "subitem_subject_scheme": "Other"}, {"subitem_subject": "oxidation", "subitem_subject_scheme": "Other"}, {"subitem_subject": "black tea", "subitem_subject_scheme": "Other"}, {"subitem_subject": "polyphenol", "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": "Structures of Epicatechin Gallate Trimer and Tetramer Produced by Enzymatic Oxidation", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "Structures of Epicatechin Gallate Trimer and Tetramer Produced by Enzymatic Oxidation"}]}, "item_type_id": "2", "owner": "2", "path": ["74"], "permalink_uri": "http://hdl.handle.net/10069/14908", "pubdate": {"attribute_name": "公開日", "attribute_value": "2008-03-04"}, "publish_date": "2008-03-04", "publish_status": "0", "recid": "21024", "relation": {}, "relation_version_is_last": true, "title": ["Structures of Epicatechin Gallate Trimer and Tetramer Produced by Enzymatic Oxidation"], "weko_shared_id": -1}
Structures of Epicatechin Gallate Trimer and Tetramer Produced by Enzymatic Oxidation
http://hdl.handle.net/10069/14908
http://hdl.handle.net/10069/1490895a16e6b-f6e8-4802-b22a-2f81c3cdfaae
名前 / ファイル | ライセンス | アクション |
---|---|---|
CPBul55_1768.pdf (137.1 kB)
|
|
Item type | 学術雑誌論文 / Journal Article(1) | |||||
---|---|---|---|---|---|---|
公開日 | 2008-03-04 | |||||
タイトル | ||||||
タイトル | Structures of Epicatechin Gallate Trimer and Tetramer Produced by Enzymatic Oxidation | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | epicatechin 3-O-gallate | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | benzotropolone | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | oxidation | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | black tea | |||||
キーワード | ||||||
主題Scheme | Other | |||||
主題 | polyphenol | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者 |
Kusano, Rie
× Kusano, Rie× Tanaka, Takashi× Matsuo, Yosuke× Kouno, Isao |
|||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | During black tea production, catechins and their galloyl esters are enzymatically oxidized to generate a complex mixture of black tea polyphenols. The role of galloyl ester groups in this process has yet to be determined. Enzymatic oxidation of epicatechin 3-O-gallate (1) yielded two new oxidation products, theaflavate C and bistheaflavate A, along with theaflavate A (2), a known dimer of 1 generated by coupling of the B-ring with the galloyl group. Theaflavate C is a trimer of 1 and possesses two benzotropolone moieties generated by the oxidative coupling of the galloyl groups with the catechol B-rings. Bistheaflavate A was found to be a tetramer produced by intermolecular coupling of two benzotropolone moieties of 2. From the structures of the products, it was deduced that oxidative coupling of galloyl groups resulted in extension of the molecular size of the products in catechin oxidation. | |||||
書誌情報 |
Chemical & Pharmaceutical Bulletin 巻 55, 号 12, p. 1768-1772, 発行日 2007-12 |
|||||
出版者 | ||||||
出版者 | The Pharmaceutical Society of Japan | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 00092363 | |||||
EISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1347-5223 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AA10885497 | |||||
PubMed番号 | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | PMID | |||||
関連識別子 | 18057757 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | 10.1248/cpb.55.1768 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
関係URI | ||||||
関連名称 | http://dx.doi.org/10.1248/cpb.55.1768 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Chemical & Pharmaceutical Bulletin v.55(12) p.1768-1772, 2007 |