{"created":"2021-03-01T06:43:34.156134+00:00","id":25595,"links":{},"metadata":{"_buckets":{"deposit":"e1163ba2-3bbe-4121-ad90-d4462fb88898"},"_deposit":{"id":"25595","owners":[],"pid":{"revision_id":0,"type":"depid","value":"25595"},"status":"published"},"_oai":{"id":"oai:repository.dl.itc.u-tokyo.ac.jp:00025595","sets":["27:2466:2467:2591","9:504:2469:2592"]},"item_4_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"スギ内樹皮中でのフラバノール類の季節変化"}]},"item_4_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1986","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"314","bibliographicPageStart":"307","bibliographicVolumeNumber":"75","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":"Seasonal changes of the flavanol content and the structural characteristics in the inner barks of Cryptomeria japonica D. Don were investigated and the following results were obtained. i) Flavanol content in the inner barks decreased rapidly during late spring and summer (from 20th May to 9th September). On the other hand, the flavanol content increased rapidly during autumnal season (from 9th September to 27th December). ii) The mean molecular weight of total flavanol are almost constant throughout the year. iii) No seasonal changes were observed on the composition of stereoisomers of monomeric and dimeric flavanols in the inner barks.","subitem_description_type":"Abstract"},{"subitem_description":"スギ内樹皮中のフラバノール類の季節変化について調べた。得られた結果はつぎのようである。i）内樹皮のフラバノール含有量は晩春から夏にかけて急速に減少する。これに対して，秋期において内樹皮中のフラバノール類は急速に増加する。内樹皮の生重量に対するフラバノール量は最高が12月27日の5.0％で最低が9月9日の2.0％であった。そして，年平均が3.7％であった（Fig.1）。内樹皮の含水率は年間を通して約60％前後であるので，内樹皮の絶乾重量に対するフラバノール量の季節変化も生重量に対する場合とほぼ同様の傾向を示した（Fig.2）ii）内樹皮中に存在するフラバノール類の分子量分布は年間を通してほとんど変化しない。フラバノール類の数平均分子量は880，平均重合度は3.0であった（Fig〓。iii）内樹皮中に存在するフラバノール単量体および二量体を構成する立体異性体の構成比は年間を通じてめだった変化を示さなかったが，同一測定日においても検体によってやや構成比が異っていた（Fig.6, Fig.7）。フラバノール類の量的な季節変化は形成層の活動の変化とよく類似した傾向を示しており，形成層の活動が活発な春から夏にかけては減少し，活動が弱まる秋期において増加する。このことはフラバノールの生成が樹木の最も基礎的な生理現象の変化とよく対応していることを示している。フラバノール類の化学構造的特徴は内樹皮中の生理的因子の変化をあまり強く受けないようである。これに対して，フラバノール類の構造的特徴は樹種差あるいは同一樹種でも組織の差によって著しく異なる。このことはフラバノール類の構造的特徴が生理的因子よりもむしろ遺伝的因子によって決定されていることを示唆している。","subitem_description_type":"Abstract"}]},"item_4_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"55553","nameIdentifierScheme":"WEKO"}],"names":[{"name":"鮫島, 正浩"}]},{"nameIdentifiers":[{"nameIdentifier":"55554","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":"SAMEJIMA, Masahiro"}],"nameIdentifiers":[{"nameIdentifier":"55551","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"YOSHIMOTO, Tomotaka"}],"nameIdentifiers":[{"nameIdentifier":"55552","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":"esrh075011.pdf","filesize":[{"value":"371.0 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"esrh075011.pdf","url":"https://repository.dl.itc.u-tokyo.ac.jp/record/25595/files/esrh075011.pdf"},"version_id":"35cf6a1b-edd1-4ce9-a753-a6ac56099b6b"}]},"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":"Seasonal Changes of Flavanols in the Inner Barks of Cryptomeria japonica D. Don","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Seasonal Changes of Flavanols in the Inner Barks of Cryptomeria japonica D. Don"}]},"item_type_id":"4","owner":"1","path":["2592","2591"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-09-03"},"publish_date":"2014-09-03","publish_status":"0","recid":"25595","relation_version_is_last":true,"title":["Seasonal Changes of Flavanols in the Inner Barks of Cryptomeria japonica D. Don"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-19T04:03:48.066329+00:00"}