tannic acid


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tannic acid

n.
1. A hydrolyzable tannin in the form of a lustrous yellowish to light brown amorphous, powdered, flaked, or spongy substance having the approximate composition C76H52O46, derived from certain plants and used in tanning leather, in fixing dyes to materials, and in clarifying wine and beer.
2. See tannin.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.tannic acid - any of various complex phenolic substances of plant origin; used in tanning and in medicine
cutch, kutch - tannin extract derived from any of several mangrove barks of Pacific areas
phenol - any of a class of weakly acidic organic compounds; molecule contains one or more hydroxyl groups
catechin - a tannic acid that is extracted from black catechu as a white crystalline substance
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

tannic acid

nTannin nt
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References in periodicals archive ?
In recent year, Tannic acid has received considerable attention as an efficient catalyst for various organic transformations such as synthesis of imidazole derivatives [18], 1-amidoalkyl-2-naphthols, [19] and synthesis of benzodiepines derivatives [20].
4Get better results gluing woods that are oily or high in tannic acid. When working with woods that are high in tannic acid or are considered oily, wiping the joints with acetone before gluing them up ensures a good bond.
When I was concerned about dehydration of a relative, and pointed out politely that the dark brown tannic acid in tea is not the best wake up for a sensitive stomach, I received a threatening letter from a solicitor claiming I was slandering the care home by saying they were giving residents acid instead of tea to drink!
"The tannic acid contained in tea and coffee increases the digestion rate which makes the person hungry again, and so the cigarette is utilised.
Processing acorns does take a decent amount of time because you have to remove the tannic acid, so do a bit of research about how to eat acorns before you dive in.
Tannic Acid or Hydrolysable Tannins are naturally occurring complex phenol-rich polymers; prevalent in a wide variety of herbs plants and fruits.
Tannic acid, or tannin, is a phenolic antioxidant that binds to allergenic protein fragments, forming insoluble complexes that may keep the allergenic protein from being released in the stomach and gut.
Nadkarni Km described that extract obtained from bark, wood, flowering tops and gum contains tannic acid 35%, catechuic acid or catechin, catechu red, tannin gum, guercetin and ash.
The study provides insights into whether tannic acid can be used during food processing to reduce the allergenicity of peanut-based foods and beverages.
In this study, we used lipid soluble antioxidants such as thymoquinone, epigallocatechin-3-gallate, and tannic acid as experimental agents for the conventional treatment to observe morphological changes in the LNCaP cell line.