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翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Compound NJ2 ： ウィキペディア英語版 Compound NJ2 Compound NJ2 is a xanthylium yellowish pigment found in wine. In model solutions, colorless compounds, such as catechin, can give rise to new types of pigments. The first step is the formation of colorless dimeric compounds consisting of two flavanol units linked by carboxy-methine bridge. This is followed by the formation of xanthylium salt yellowish pigments and their ethylesters, resulting from the dehydration of the colorless dimers, followed by an oxidation process. The loss of a water molecule takes place between two A ring hydroxyl groups of the colorless dimers.〔Xanthylium salts formation involved in wine colour changes. Nour-Eddine Es-Safi, Christine Le Guernevé, Hélène Fulcrand, Véronique Cheynier and Michel Moutounet, International Journal of Food Science & Technology, February 2000, Volume 35, Issue 1, pages 63–74, 〕 == See also == * wine color * Phenolic content in wine 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Compound NJ2」の詳細全文を読む スポンサード リンク 翻訳と辞書 : 翻訳のためのインターネットリソース Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.