アルカリ・メタノール蒸解に関する研究-3-蒸解過程におけるリグニンの挙動

• 資料種別: 記事
• タイトル: アルカリ・メタノール蒸解に関する研究-3-蒸解過程におけるリグニンの挙動
• 著者・編者: 大間 秀紀; 細谷 修二; 中野 準三
• 著者標目: 大間 秀紀; 細谷 修二; 中野 準三
• タイトル（掲載誌）: 紙パ技協誌 = Japan TAPPI journal
• 巻号年月日等（掲載誌）: 32(4) 1978.04
• 掲載巻: 32
• 掲載号: 4
• 掲載ページ: p245～248
• 掲載年月日（W3CDTF）: 1978-04
• ISSN（掲載誌）: 0022-815X
• ISSN-L（掲載誌）: 0022-815X
• 出版事項（掲載誌）: 東京 : 紙パルプ技術協会
• 出版地（国名コード）: JP
• 本文の言語コード: jpn
• NDLC: ZP19
• 対象利用者: 一般
• 記事種別、記事分類: 記事分類: 化学・化学工業--紙・パルプ
• 所蔵機関: 国立国会図書館
• 請求記号: Z17-76
• 連携機関・データベース: 国立国会図書館 : 国立国会図書館雑誌記事索引; https://ndlsearch.ndl.go.jp
• 書誌ID（NDLBibID）: 1937880; http://id.ndl.go.jp/bib/1937880
• 整理区分コード: 632

• 要約等: The behavior of lignin during alkali-methanol cooking has been studied using the lignin model compounds, vanillylalcohol and veratrylalcohol. The amounts of functional groups and molecular weight distributions of isolated alkali-methanol and soda lignins have been measured.<BR>Vanillylalcohol was methylated to vanillylmethylether by treating with alkali-methanol, while vanillylalcohol gave the condensation products with soda cooking liquor. These facts indicate that the mehylation of vanillylalcohol prevents the condensation of it. Vaeratrylmethylether was only slightly produced from veratrylalcohol by alkali-methanol treatment.<BR>Comparing the functional groups of both isolated lignins, there are higher amounts of methoxyl groups in alkali-methanol lignin and of phenolic hydroxyl groups in soda lignin. Gel filtration curves of both isolated lignins have revealed that there are less high molecular weight fractions in alkali-methanol lignin than in soda lignin under the same cooking conditions.<BR>Summarizing the results mentioned above, it can be concluded that the rapid delignification during alkali-methanol cooking is due to the prevention of condensation through the methylation of active benzylalcohol groups in lignin molecule.
• DOI: 10.2524/jtappij.32.4_245
• オンライン閲覧公開範囲: インターネット公開
• 連携機関・データベース: 科学技術振興機構 : J-STAGE; http://www.jstage.jst.go.jp

• 要約等: The behavior of lignin during alkali-methanol cooking has been studied using the lignin model compounds, vanillylalcohol and veratrylalcohol. The amounts of functional groups and molecular weight distributions of isolated alkali-methanol and soda lignins have been measured.<BR>Vanillylalcohol was methylated to vanillylmethylether by treating with alkali-methanol, while vanillylalcohol gave the condensation products with soda cooking liquor. These facts indicate that the mehylation of vanillylalcohol prevents the condensation of it. Vaeratrylmethylether was only slightly produced from veratrylalcohol by alkali-methanol treatment.<BR>Comparing the functional groups of both isolated lignins, there are higher amounts of methoxyl groups in alkali-methanol lignin and of phenolic hydroxyl groups in soda lignin. Gel filtration curves of both isolated lignins have revealed that there are less high molecular weight fractions in alkali-methanol lignin than in soda lignin under the same cooking conditions.<BR>Summarizing the results mentioned above, it can be concluded that the rapid delignification during alkali-methanol cooking is due to the prevention of condensation through the methylation of active benzylalcohol groups in lignin molecule.
• DOI: 10.2524/jtappij.32.4_245; https://doi.org/10.2524/jtappij.32.4_245
• 関連情報（URI）: http://id.ndl.go.jp/bib/1937880; https://ndlsearch.ndl.go.jp/books/R000000004-I1937880
• 連携機関・データベース: 国立情報学研究所 : CiNii Research; https://cir.nii.ac.jp/
• 提供元機関・データベース: Japan Link Center; https://japanlinkcenter.org/top; 雑誌記事索引データベース; https://ndlsearch.ndl.go.jp; Crossref; https://www.crossref.org; CiNii Articles
• 書誌ID（NDLBibID）: 1937880; http://id.ndl.go.jp/bib/1937880
• NII論文ID: 130003686342