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单词 ellagitannin
释义 ellagitannin Chem.|ɛlədʒɪˈtænɪn|
Also ellago-.
[f. ellagic a. + tannin.]
Any tannin that on hydrolysis gives ellagic acid and a sugar.
1895Naturalist 25 Ellagotannin C14H10O10, which is the most highly oxidised of vegetable astringents.1898Proc. Chem. Soc. 104 The presence of ellagic acid has also been detected, and thus besides gallotannin, ellagitannin is also present.1956Hickinbottom & Garwood in E. H. Rodd Chem. Carbon Compounds IIIb. xii. 806 The hydrolysable tannins are usually divided into gallotannins which on hydrolysis give gallic acid, and ellagitannins which give ellagic acid.1966E. Haslam Chem. Vegetable Tannins iv. 122 The most important sources of ellagitannins are..Valonea, Myrobalans, Divi-divi and Algarobilla.
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