翻訳と辞書 Words near each other ・ Malverne (LIRR station) ・ Malverne Park Oaks, New York ・ Malverne, New York ・ Malvertisement ・ Malvertising ・ Malves-en-Minervois ・ Malvesa ・ Malvesi ・ Malvestiti Authority ・ Malvezie ・ Malvi ・ Malvi (disambiguation) ・ Malvi language ・ Malvicino ・ Malvidin ・ Malvidin glucoside-ethyl-catechin ・ Malvidin-3-O-(6-p-coumaroyl)glucoside ・ Malvik ・ Malvik Church ・ Malvik IL ・ Malvika Subba ・ Malville ・ Malvillers ・ Malvin ・ Malvin (disambiguation) ・ Malvin (given name) ・ Malvin Gray Johnson ・ Malvin Hunter ・ Malvin Kamara ・ Malvin Russell Goode Dictionary Lists mini英和辞書 mini和英辞書 Webster 1913 Latin-English FOLDOC Wikipedia English ウィキペディア

翻訳と辞書　辞書検索 [ 開発暫定版 ] スポンサード リンク Malvidin glucoside-ethyl-catechin ： ウィキペディア英語版 Malvidin glucoside-ethyl-catechin Malvidin glucoside-ethyl-catechin is a flavanol-anthocyanin adduct.〔(Malvidin glucoside-ethyl-catechin on Yeast Metabolome Database )〕 Flavanol-anthocyanin adducts are formed during wine ageing through reactions between anthocyanins and tannins present in grape, with yeast metabolites such as acetaldehyde. Acetaldehyde-induced reactions yield ethyl-linked species such as malvidin glucoside-ethyl-catechin. This compound has a better color stability at pH 5.5 than malvidin-3O-glucoside. When the pH was increased from 2.2 to 5.5, the solution of the pigment became progressively more violet (λmax = 560 nm at pH 5.5), whereas similar solutions of the anthocyanin were almost colorless at pH 4.0. Other types of aldehyde, such as isovaleraldehyde, benzaldehyde, propionaldehyde, isobutyraldehyde, formaldehyde or 2-methylbutyraldehyde, show the same reactivity in model solutions. == References == 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「Malvidin glucoside-ethyl-catechin」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.