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  1. 紀要論文
  2. 琉球大学農学部学術報告
  3. 25号
  1. 部局別インデックス
  2. 農学部

アミノカルボニル反応の梢頭部蔗汁の褐変に及ぼす影響(農芸化学科)

http://hdl.handle.net/20.500.12000/4200
http://hdl.handle.net/20.500.12000/4200
0c5e3295-433f-4b3c-bde9-7c82f1fa0f09
名前 / ファイル ライセンス アクション
KJ00000161954.pdf KJ00000161954.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2008-02-14
タイトル
タイトル アミノカルボニル反応の梢頭部蔗汁の褐変に及ぼす影響(農芸化学科)
言語 ja
作成者 外間, 宏一

× 外間, 宏一

ja 外間, 宏一

仲宗根, 洋子

× 仲宗根, 洋子

ja 仲宗根, 洋子

親川, 雅浩

× 親川, 雅浩

ja 親川, 雅浩

Hokama, Koichi

× Hokama, Koichi

en Hokama, Koichi

Nakasone, Yoko

× Nakasone, Yoko

en Nakasone, Yoko

Oyakawa, Masahiro

× Oyakawa, Masahiro

en Oyakawa, Masahiro

アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 1.甘蔗汁にアミノ酸としてバリン, アラニン及びグルタミン酸, 糖としてグルコース, フルクトース及びスークロースが検出された。2.アミノカルボニル反応は, 温度及びpHが高い程起こり易かった。3.糖とアミノ酸の反応において, 295nmに最大吸収スペクトルを持つ褐変前の中間生成物(N-置換1-アミノ-1-デオキシ-2-ケトース)と思われる物質が蔗汁の褐変現象に関与しているものと推察された。4.Rf0.32のサトウキビ水溶性色素は, アラニンーグルコース反応によって生じたRf0.34の色素と同一で, グリコシルアミン類縁物であると思われた。5.アミノカルボニル反応溶液中に存在するといわれているイミダゾール化合物がサトウキビ水溶性色素中にも存在するらしいことが確認された。
内容記述タイプ Other
内容記述 1. Valine and alanine as amino acids and glucose, fructose and sucrose as sugars were identified to exist in sugarcane-top juice, respectively. 2. At higher temperatures and pH values, the amino-carbonyl reaction took place in a greater extent. 3. From the viewpoint of a sugar-amino acid reaction, it was suggested that the intermediate-like products with the maximum absorbance peak of 295nm (N-substituted 1-amino-1-deoxy-2-ketose) took a part in browning of sugarcane-top juice. 4. It was supposed that the water-soluble pigment of Rf value 0.32 was identical with that of Rf value 0.34,formed as the result of an alanine-glucose reaction, and was analogous to a glycosylamine compound. 5. It was recognized that the imidazol compound supposed to exist in aminocarbonyl reaction mixtures was also contained as a water-soluble pigment in browned sugarcane-top juice.
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ VoR
出版タイプResource http://purl.org/coar/version/c_970fb48d4fbd8a85
識別子
識別子 http://hdl.handle.net/20.500.12000/4200
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0370-4246
収録物識別子タイプ NCID
収録物識別子 AN00250548
収録物名
言語 ja
収録物名 琉球大学農学部学術報告
書誌情報
号 25, p. 235-246
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