Gallic add

Hydrogenation, of gallic add with rhodium-alumina catalyst, 43, 62 of resorcinol to dihydroresorcinol, 41,56 Hydrogen peroxide, and formic acid, with indene, 41, 53 in oxidation of benzoic add to peroxy-benzoic add, 43, 93 in oxidation of ieri-butyl alcohol to a,a/r, a -tetramcthyltetra-methylene glycol, 40, 90 in oxidation of teri-butylamine to a,<, a, a -tetramethyltetra-methylenediamine, 40, 92 in oxidation of Crystal Violet, 41, 2, 3—4... 

GALLIC ACID Gallic Add Monohydrate, 3,4,5-Trihydroxy-benzoic Add NL 0 1 0... 

Food 4-Hydroxy benzoic acid Protocatechuic add Gallic add... 

According to the above-named chemist, crystallized gallic add is composed of—... 

Density, Air-Dry, grams gallic add equiv./ gram/cmz 100 grams Oven-Dry)... 

Quantitative analysis is carried out almost exclusively on tannin and gallic add inks, since only for these have limits been established for certain of the components. It comprises principally the following determinations. 

Gallic Add Not pertinent. This is a combustible solid Not pertinent Not pertinent Water, foam, dry chemical, or carbon dioxide Not pertinent No data Not pertinent No ... 

Hamamelis. Witch hazel winter bloom snapping hazel striped alder spotted alder tobacco wood. Dried leaves of Hamamelis virginiatta L Hamamelidaceae, collected in autumn. History of hamamelis extract and distillate Lloyd. Lloyd, /. Am. Pharm. Assoc. 24, 220 (1935). Habit. North America (New England to Minnesota, southward to Louisiana). Constit. Hamamelitannin, q.v., gallic add, volatile oil, bitter prindple. 

L= leaves TB= trunk barks RB= root bark.Total phenolics expressed as gallic add equivalent (GAE), total flavonoids expressed as catechin equivalent (CE). 

While studying the effects of certain factors, such as temperature, pH, and carbon sources on the decomposition of tannic acid and gaUic add, a decomposition product of tannic acid by Penicillium chrysogenum has been studied by Suseela and Nandy [27]. According to them, the decomposition of both tannic and gallic adds was found to be maximum... 

From Heinonen et al. (1998). Extracts obtained with 70% acetone. Total phenols expressed as gallic acid equivalents/1. The cherry and strawberry extracts also contained 2.5 and 2.1 mg/kg respectively of benzoates (as gallic add). 

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