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a.1.(Chem.) Pertaining to, or obtained from, coffee.
Caffeic acid
an acid obtained from coffee tannin, as a yellow crystalline substance, C9H8O4.
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The main polyphenols, chlorogenic acids and caffeic acid (not related to caffeine), are demethylating agents, meaning they thwart the addition of methyl groups to DNA.
These dietary agents include well-known, well-documented substances recommended for cancer prevention and therapy, such as curcumin (turmeric), resveratrol (grapes), genistein (soybean), capsaicin (red chili), ellagic acid (pomegranate), caffeic acid and phenyl ester (propolis), polyphenols (green tea), catechin (green tea), and indole-3-carbinol (cruciferous vegetables).
It was also shown to have appreciable quantities of phyto-nutrients such as apigenin, quercetin, kaempherol, and caffeic and chlorogenic acids.
caffeic acid (1), luteolin-7-glc (2), rosmarinic acid (3), homoplantaginin (4), luteolin (5), and hispidulin (6).
1) Some of the simplest antimicrobial phytochemicals are the single substituted phenolic ring compounds, like cinnamic acid and caffeic acid.
Its leaves contain tannic acid; resins called oleic acid, ursonic acid, and ursolic acid; bitter substances called cornsole and cornsolic acid; estrogenic substances; and fumaric, chlorogenic, caffeic, and nicotinic acids--as well as a powerful class of bioflavonoids known as flavones.
Caffeic acid, syringic acid and 4-hydroxybenzoic acid (4-HBA) are phenolic acids which reported to have high antifungal activity against Ganoderma [3,5].
According to the research, propolis contains active ingredients such as kaempferol and caffeic acid that stimulated the start of the hair growth cycle in the subjects' bald skin.
Dibasic sodium phosphate, sodium carbonate, Folin-Ciocalteu reagent (FCR), sodium hydroxide, sodium tetraborate decahydrate, 1-butyl-3-methylimidazolium chloride, nitric acid, and hydrogen peroxide as well as standard compounds catechin, piceid (polydatin), transresveratrol, quercetin, myricetin, quercetin glucoside, kaempferol, 3, 4-dihydroxybenzoic acid (3, 4-DHB), caffeic acid, syringic acid, salicylic acid, ferulic acid, gallic acid, sinapinic acid, myo-inositol, arabitol, glucitol, mannitol, fucose, cellobiose, galactose, glucose, fructose, arabinose, xylose, ribose, acetic acid, were purchased from Sigma-Aldrich (Germany or USA).
The authors discussed the benefits of the organic, antioxidant compounds caffeic acid (CA), rosmarinic acid (RA) and trans-cinnamic acid (TCA) used at non-toxic concentrations.
Caffeic and chlorogenic acids inhibit key enzymes linked to type 2 diabetes (in vitro): a comparative study.
The carboxylic acids used in this study were oxalic acid (OX), malic acid (MAL), citric acid (CIT), 4-hydroxybenzoic acid (HB), protocatechuic acid (PCH), 4-hydroxycinnamic acid (HC; also known as p-coumaric acid), and caffeic acid (CAF).