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tannin

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tannin
tannin Chem. (ˈtænɪn) [a. F. tanin, ‘le principe tannant’ (1798 Proust in Ann. de Chimie XXV. 225), f. tan tan n.1 + -in1.] Any member of a group of astringent vegetable substances, the tannins, which possess the property of combining with animal hide and converting it into leather. The first member... Oxford English Dictionary
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Tannin
Other methods The hide-powder method is used in tannin analysis for leather tannin and the Stiasny method for wood adhesives. At that time, many small tannin industry sites closed. wikipedia.org
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What Is A Tannin? A Guide To Tannins | Wine 101 - VinePair
Tannins are naturally occurring phenolic compounds found in many kinds of plants, including a grape's skins, stems, and seeds. Tannins help provide texture, balance, and structure to wine. Both ...
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tannin
tannin/ˈtænɪn; `tænɪn/ n[U]any of various compounds obtained from the bark of oak and other trees and used in tanning, dyeing, etc 鞣酸; 单宁; 单宁酸. 牛津英汉双解词典
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Tannin (disambiguation)
Tannin usually refers to astringent, bitter chemical compounds naturally occurring in plants, which are used in tanning hides and prominent in the taste It may also refer to: Tannin, a monster in Levantine mythology See also Tan (disambiguation) Tanning (disambiguation) Tanin (disambiguation) wikipedia.org
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Tannin (monster)
Along with Rahab, "Tannin" was a name applied to ancient Egypt after the Exodus to Canaan. The word Tannin is used in the Hebrew Bible fourteen times. wikipedia.org
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gallo-tannin
gallo-tannin (gæləʊˈtænɪn) [f. as prec. + tannin.] Tannin prepared from nut-galls.1891 Anthony's Photogr. Bull. IV. 128 Gallo-tannin (the ordinary tannin) produces a similar blue black coloration. Oxford English Dictionary
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Hydrolysable tannin
A hydrolysable tannin or pyrogallol-type tannin is a type of tannin that, on heating with hydrochloric or sulfuric acids, yields gallic or ellagic acids Alkaline hydrolysis 4.8 g sample tannin in 9 ml water are refluxed in 4.2 ml 40% NaOH for 6h at pH 12 - 13. wikipedia.org
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Does the tannin level in plants go down or up after they die? Or does the tannin level stay the same regardless? Does the tannin level in plants go down or up after they die? Or does the tannin level stay the same reg...
Tannin is secondary product, so I don't think the plant cells will produce more tannin when they are starving probably because of cutting off the leaves
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Condensed tannin
All of the above are formed from flavan-3-ols, but flavan-3,4-diols, called (leucoanthocyanidin) also form condensed tannin oligomers, e.g. leuco-fisetinidin One particular type of condensed tannin, found in grape, are procyanidins, which are polymers of 2 to 50 (or more) catechin units joined by carbon-carbon wikipedia.org
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Roburin A
Roburin A is a tannin found in oak wood (Quercus robur and Quercus petraea or Quercus alba) or oak cork (Quercus suber). References Ellagitannins Tannin dimers wikipedia.org
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甚麼是葡萄酒中的丹寧酸？Tannin Basics | 酒文集-
在葡萄酒中，丹寧酸是使葡萄酒味道變乾(Dry)的質地元素。 單寧是植物，種子，樹皮，木材，葉子和果皮中發現的天然存在的多酚。 大約50％的植物葉片比重是單寧。 作為葡萄酒的一個特點單寧增加了苦味和澀味以及復雜性。 葡萄酒單寧最常見於紅葡萄酒，白葡萄酒的單寧從橡木桶陳釀而來。
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Ebonising
The ferric acetate thus formed reacts with the tannin in the wood, forming a black substance crusting the top of the wood. Since hardwoods have higher tannin content, they are more convenient woods to ebonize. wikipedia.org
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Promelacacinidin
Promelacacinidin is a polymeric condensed tannin composed of mesquitol. This type of tannin can be found in Senegalia caffra. wikipedia.org
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如何优雅地吃牛排？
｜What is Tannin? How to know the level of Tannin? 好吧，简单来说，单宁含量高的葡萄酒，酸度越低，干涩感越强，口感越浓厚。肥腻的牛排选择单宁越强劲的红酒，精瘦的牛排则搭配中度或轻度的单宁红酒。 zhihu
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