{"created":"2021-03-01T06:43:32.303151+00:00","id":25567,"links":{},"metadata":{"_buckets":{"deposit":"5cb64cce-6b5c-49aa-a48a-4cabc9fcb9ca"},"_deposit":{"id":"25567","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25567"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025567","sets":["27:2466:2467:2587","9:504:2469:2588"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Ulin材（Eusideroxylon zwageri T. et B.)の耐朽性と抽出成分との関係について"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1987","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"8","bibliographicPageStart":"1","bibliographicVolumeNumber":"77","bibliographic_titles":[{"bibliographic_title":"東京大学農学部演習林報告"}]}]},"item_4_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The role of extractives from heartwood of Ulin (Eusideroxylon zwageri T. et B.) on durability of wood was investigated. Decay resistance of Ulin heartwood is reduced by extraction with acetone. The addition of acetone extract from Ulin heartwood into woodmeal of Buna (Fagus crenata) showed a significant increase of decay resistance of this wood. From these observations, it can be stated that the Ulin acetone extract may contain fungal toxic substances. Acetone extract from the heartwood of Ulin was then successively fractionated into n-hexane, ethyl ether, and ethyl acetate soluble fractions, and each fraction then subjected to the fungal bioassay. The highest toxicity on mycelial growth of kawaratake (Coriolus versicolor) and ouzuratake (Tyromeces polutris) was found in the n-hexane soluble fraction. Therefore, the chemical components of n-hexane soluble fraction were investigated, and eusiderin, a neolignan, was found as a major compound in n-hexane soluble fraction. Eusiderin showed a toxic activity on mycelial growth of wood-rotting fungi. From these results, eusiderin is considered to be responsible for durability of Ulin wood.","subitem_description_type":"Abstract"},{"subitem_description":"Ulin材の耐朽性と抽出成分との関係について調べた。Ulin材をアセトン抽出するとカワラタケ（Coriolus versicolor）およびオオウズラタケ（Tyromeces polutris）に対する耐朽性が低下した。一方，Ulin材アセトン抽出をブナ木粉に添加すると木材腐朽菌に対するブナ木紛の耐朽性は高くなった。このことからアセトン抽出物がUlin材の耐朽性に関与することを示した。そこで，アセトン抽出物中の抗菌活性成について検索した。アセトン抽出物をn-ヘキサン，エチルエーテル，酢酸エチルで逐次抽出し，各画分をMEA培地に添加し，木材腐朽菌の菌糸生長抑制効果について調べた。その結果，n-ヘキサン可溶部を添加したときに，腐朽菌の生長が最も阻害された。n-ヘキサン可溶部をさらにカラムクロマトグラフィーで分画し，Eusiderinを単離した。Eusiderinはn-ヘキサン可溶部の主要成分であった。Ulin材抽出物による腐朽菌生育抑制活性の一因はEusiderinによるものと推定された。","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"55432","nameIdentifierScheme":"WEKO"}],"names":[{"name":"シャフィー, ワスリン"}]},{"nameIdentifiers":[{"nameIdentifier":"55433","nameIdentifierScheme":"WEKO"}],"names":[{"name":"鮫島, 正浩"}]},{"nameIdentifiers":[{"nameIdentifier":"55434","nameIdentifierScheme":"WEKO"}],"names":[{"name":"善本, 知孝"}]}]},"item_4_publisher_20":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"東京大学大学院農学生命科学研究科附属演習林"}]},"item_4_source_id_10":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00162451","subitem_source_identifier_type":"NCID"}]},"item_4_source_id_8":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03716007","subitem_source_identifier_type":"ISSN"}]},"item_4_subject_15":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"610","subitem_subject_scheme":"NDC"}]},"item_4_text_21":{"attribute_name":"出版者別名","attribute_value_mlt":[{"subitem_text_value":"The Tokyo University Forests"}]},"item_4_text_4":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"東京大学農学部林産学科"},{"subitem_text_value":"Department of Forest Products, Faculty of Agriculture, University of Tokyo"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"SYAFII, Wasrin"}],"nameIdentifiers":[{"nameIdentifier":"55429","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"SAMEJIMA, Masahiro"}],"nameIdentifiers":[{"nameIdentifier":"55430","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"YOSHIMOTO, Tomotaka"}],"nameIdentifiers":[{"nameIdentifier":"55431","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":"2017-06-09"}],"displaytype":"detail","filename":"esrh077001.pdf","filesize":[{"value":"458.7 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh077001.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25567/files/esrh077001.pdf"},"version_id":"8c1554d1-983d-4017-911b-7f471a68aab7"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"The Role of Extractives in Decay Resistance of Ulin Wood (Eusideroxylon zwageri T. et B.)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"The Role of Extractives in Decay Resistance of Ulin Wood (Eusideroxylon zwageri T. et B.)"}]},"item_type_id":"4","owner":"1","path":["2588","2587"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-09-03"},"publish_date":"2014-09-03","publish_status":"0","recid":"25567","relation_version_is_last":true,"title":["The Role of Extractives in Decay Resistance of Ulin Wood (Eusideroxylon zwageri T. et B.)"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:03:47.425265+00:00"}