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ジオキサンリグニンの光酸化(2) 被光した6種のジオキサン-塩酸リグニンからのエーテル抽出成分
http://hdl.handle.net/2261/23040
http://hdl.handle.net/2261/23040762c9f29-ded0-4b57-bcc7-f4db6902aea7
名前 / ファイル | ライセンス | アクション |
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2014-09-03 | |||||
タイトル | ||||||
タイトル | ジオキサンリグニンの光酸化(2) 被光した6種のジオキサン-塩酸リグニンからのエーテル抽出成分 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源 | http://purl.org/coar/resource_type/c_6501 | |||||
タイプ | departmental bulletin paper | |||||
その他のタイトル | ||||||
その他のタイトル | Photooxidation of Dioxane-HC1 Lignin (2) Ether Extract from 6 kinds of Dioxane-HC1 Lignin irradiated by Light | |||||
著者 |
佐分, 義正
× 佐分, 義正× 善本, 知孝× 南, 享二 |
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著者別名 | ||||||
識別子 | 55747 | |||||
識別子Scheme | WEKO | |||||
姓名 | SABURI, Yoshimasa | |||||
著者別名 | ||||||
識別子 | 55748 | |||||
識別子Scheme | WEKO | |||||
姓名 | YOSHIMOTO, Tomotaka | |||||
著者別名 | ||||||
識別子 | 55749 | |||||
識別子Scheme | WEKO | |||||
姓名 | MINAMI, Kyoji | |||||
著者所属 | ||||||
著者所属 | 東京大学農学部林産学科 | |||||
著者所属 | ||||||
著者所属 | Department of Forest Products, Faculty of Agriculture, University of Tokyo. | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | A study was carried out on photodegradation of lignins isolated from Hinoki wood (Chamaecyparis obtusa) using a dioxane-water medium containing hydrogen chloride as a solvent. In order to isolate lignins, wood meals were treated as follows: (1) successive extractions in increasing concentrations of 0.04, 0.08 and 0.24 equivalents of HCl/one liter of solvent medium (Lignin A, B and C): (2) further hydrolysis of each of the above lignins (Lignin a, b and c) (Fig. 1). All the lignins so isolated were studied with respect to their yields of ether extract before and after irradiation of light. Lignin a, b and c were decomposed by irradiation for 4 hours to produce ether extract enough to be detectable. In lignin A, B and C, ether extracts from lignins irradiated for 4 hours were not always larger than those from unexposed lignins in quantity (Table 1). The increase of ether extract was, however, observed in those lignins irradiated for 24 hours (Table 2). In lignin A, ether extracts were observed on samples obtained in the method as shown in Fig. 2 and were found to increase dy irradiation of light. Ether extracts from 6 kinds of lignin were developed by thin layer chromatography (TLC). Very similar chromatograms were observed from all of lignin (Fig. 3-1 and 3-2). Extracts from each chromatogram in the case of lignin a were measured (Table 3). Main products by irradiation were assumed to be acetoguaiacone, coniferyl aldehyde and acidic compounds by comparative TLC and color reactions. | |||||
書誌情報 |
東京大学農学部演習林報告 巻 67, p. 9-15, 発行日 1975 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 03716007 | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00162451 | |||||
日本十進分類法 | ||||||
主題 | 610 | |||||
主題Scheme | NDC | |||||
出版者 | ||||||
出版者 | 東京大学大学院農学生命科学研究科附属演習林 | |||||
出版者別名 | ||||||
The Tokyo University Forests |